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100-Vial Multi-Purpose Production & Storage Tray – CAD Design Ended
About the job
We are seeking an experienced industrial/product CAD designer to finalize the design of a custom 100-vial multi-purpose production and storage tray used in a jewelry production environment.
This is a one-time CAD design project. We will provide reference images and, if useful, the existing preliminary CAD model. The reference model establishes design intent only; the selected designer is expected to engineer and refine the final manufacturable design.
We have already developed the basic concept and dimensional requirements. The selected designer will refine the design into a practical, manufacturable product and provide production-ready CAD files.
The tray must serve two purposes:
Production: Used individually on a workbench to organize and process up to 100 glass vials.
Storage / Work-in-Process: Multiple loaded trays can be securely stacked using removable corner posts.
The removable stacking system is an important part of the project. When stacking is not required, the posts should be removable so the tray remains compact and unobstructed for production use.
Reference images of our current concept will be provided.
Vials
The tray is designed around cylindrical borosilicate glass vials with the following nominal dimensions:
Vial body outside diameter: 16.0 mm
Vial body height: 45 mm
Overall height with cap installed: approximately 60 mm
Vial Layout
Capacity: 100 vials
Arrangement: 10 × 10 grid
Required geometry:
Well diameter: 17.0... read more
This is a one-time CAD design project. We will provide reference images and, if useful, the existing preliminary CAD model. The reference model establishes design intent only; the selected designer is expected to engineer and refine the final manufacturable design.
We have already developed the basic concept and dimensional requirements. The selected designer will refine the design into a practical, manufacturable product and provide production-ready CAD files.
The tray must serve two purposes:
Production: Used individually on a workbench to organize and process up to 100 glass vials.
Storage / Work-in-Process: Multiple loaded trays can be securely stacked using removable corner posts.
The removable stacking system is an important part of the project. When stacking is not required, the posts should be removable so the tray remains compact and unobstructed for production use.
Reference images of our current concept will be provided.
Vials
The tray is designed around cylindrical borosilicate glass vials with the following nominal dimensions:
Vial body outside diameter: 16.0 mm
Vial body height: 45 mm
Overall height with cap installed: approximately 60 mm
Vial Layout
Capacity: 100 vials
Arrangement: 10 × 10 grid
Required geometry:
Well diameter: 17.0... read more
We are seeking an experienced industrial/product CAD designer to finalize the design of a custom 100-vial multi-purpose production and storage tray used in a jewelry production environment.
This is a one-time CAD design project. We will provide reference images and, if useful, the existing preliminary CAD model. The reference model establishes design intent only; the selected designer is expected to engineer and refine the final manufacturable design.
We have already developed the basic concept and dimensional requirements. The selected designer will refine the design into a practical, manufacturable product and provide production-ready CAD files.
The tray must serve two purposes:
Production: Used individually on a workbench to organize and process up to 100 glass vials.
Storage / Work-in-Process: Multiple loaded trays can be securely stacked using removable corner posts.
The removable stacking system is an important part of the project. When stacking is not required, the posts should be removable so the tray remains compact and unobstructed for production use.
Reference images of our current concept will be provided.
Vials
The tray is designed around cylindrical borosilicate glass vials with the following nominal dimensions:
Vial body outside diameter: 16.0 mm
Vial body height: 45 mm
Overall height with cap installed: approximately 60 mm
Vial Layout
Capacity: 100 vials
Arrangement: 10 × 10 grid
Required geometry:
Well diameter: 17.0 mm
Well depth: 15.0 mm
Center-to-center pitch: 21.0 mm in both directions
Wells must be blind, not through-holes.
Maintain at least 5.0 mm of solid material beneath the bottom of each well.
Provide approximately 1.0 mm × 45° entry chamfer around each well to facilitate vial insertion.
The vials should be held securely enough for routine handling while remaining easy to insert and remove by hand.
Coordinate Identification System
Every vial position must be readily identifiable.
The tray will use an A–J / 1–10 coordinate system.
A through J must appear along both the left and right sides of the vial grid.
1 through 10 must appear along both the front and back of the vial grid.
Each letter and number must align directly with its corresponding row or column.
Markings should be permanently recessed, engraved, molded, or otherwise incorporated into the tray rather than applied as stickers or printing.
The markings must remain easily readable during normal production use.
Front Batch-Identification Surface
The front of the tray should incorporate a prominent angled identification face for application of a temporary production/batch label.
The face should be sufficiently large and angled/positioned so that the label remains readily visible when multiple trays are stacked.
The coordinate numbers along the front should not materially reduce the usable batch-label area.
Removable Stacking Posts
The tray requires four removable corner stacking posts.
The posts should not be permanently incorporated into the tray because many trays will be used individually during production.
Each post should:
Install and remove without tools.
Insert into a compact corner socket in the tray.
Lock positively with a short rotational movement, such as an approximately 45–90° quarter-turn/bayonet-style connection.
Resist accidental withdrawal if the tray is lifted or moved.
Be straightforward for production employees to install and remove repeatedly.
Ideally use the same geometry at all four corners so that only one post design is required.
When the posts are removed, the attachment points should be compact and should not materially interfere with normal use of the tray on a production bench.
The designer may refine the locking mechanism provided these functional requirements are maintained.
Stacking and Vertical Clearance
When loaded trays are stacked, no load may be transferred through the glass vials or vial caps.
The upper tray must be supported entirely by the four corner posts.
The vial is approximately 60 mm high with its cap installed. Because approximately 15 mm of the vial is seated within the tray well, approximately 45 mm projects above the tray's vial-supporting surface.
Provide a minimum of approximately 5 mm clearance above the capped vial.
Accordingly, the underside/supporting surface of the next tray should be approximately 50 mm above the vial-supporting top surface of the lower tray.
The designer should finalize this dimension after accounting for actual tray geometry and manufacturing tolerances.
Upper-Tray Docking
The top of each stacking post should positively locate the tray above it.
Target engagement into the corresponding underside feature: 3–4 mm.
The docking feature should:
Prevent meaningful lateral movement between stacked trays.
Make stacks feel stable and deliberate.
Allow an upper tray to be lifted vertically without excessive resistance.
Avoid deep engagement that makes trays cumbersome to separate.
The designer should develop an appropriate male/female registration geometry.
Tray Construction
The preferred production material is a rigid engineering plastic, with HDPE, polypropylene, acetal, or another suitable material to be evaluated by the designer/manufacturer.
The tray should be:
Rigid under the weight of 100 loaded glass vials.
Durable under repeated production use.
Easy to clean.
Resistant to routine handling and minor impacts.
Free of unnecessarily sharp edges or corners.
Suitable for repeated stacking and unstacking.
We anticipate relatively low-to-moderate initial production quantities, so CNC machining or another economical low-volume manufacturing method should be considered first.
However, the geometry should not unnecessarily prevent future conversion to injection molding if volumes justify tooling.
Colors
We anticipate manufacturing the same tray in multiple colors for visual workflow identification, potentially including:
White – storage/general use
Yellow – standard production
Green – rush/priority production
No dimensional differences are intended between colors.
Design Intent
The finished product should look and function like a purpose-designed professional production tool rather than a simple drilled plastic plate.
Particular attention should be given to:
Overall proportions
Comfortable handling
Corner treatment
Label visibility
Coordinate readability
Stack stability
Easy tray separation
Easy installation/removal of posts
Minimizing unnecessary bulk and material
Manufacturability and cost
We are open to sensible design improvements provided the core dimensional and functional requirements above are preserved.
Required Deliverables
The selected designer should provide:
Complete 3D CAD model of the tray.
Complete 3D CAD model of the removable stacking post.
All mating/docking features.
STEP (.STEP/.STP) files suitable for manufacturing.
Native editable CAD files.
Dimensioned manufacturing drawings in PDF.
Exploded or assembly view showing installation of the removable posts.
Rendered images showing:
Single tray without posts
Single tray with posts installed
Loaded tray with 100 vials
Multiple loaded trays stacked
Recommended manufacturing tolerances for critical features.
Recommended material and manufacturing process for initial production.
Identification of any design changes that would be advisable if the product is subsequently injection molded.
Designer Qualifications
Preference will be given to designers with demonstrated experience in:
Industrial/product design
Plastic components
CNC-machined plastic products
Injection-molded product design
Mechanical locating or quarter-turn/bayonet connections
Stackable trays, racks, fixtures, laboratory products, or production tooling
Design for manufacture (DFM)
Please include examples of comparable work where available.
Scope
This is primarily a design refinement and production-CAD project, not a conceptual design exercise.
We already have the vial dimensions, grid layout, well geometry, coordinate concept, label-face concept, and overall stacking concept established.
We are looking for a designer who can take this design intent, resolve the remaining mechanical details, improve manufacturability and usability, and produce a professional production-ready CAD package. read less
This is a one-time CAD design project. We will provide reference images and, if useful, the existing preliminary CAD model. The reference model establishes design intent only; the selected designer is expected to engineer and refine the final manufacturable design.
We have already developed the basic concept and dimensional requirements. The selected designer will refine the design into a practical, manufacturable product and provide production-ready CAD files.
The tray must serve two purposes:
Production: Used individually on a workbench to organize and process up to 100 glass vials.
Storage / Work-in-Process: Multiple loaded trays can be securely stacked using removable corner posts.
The removable stacking system is an important part of the project. When stacking is not required, the posts should be removable so the tray remains compact and unobstructed for production use.
Reference images of our current concept will be provided.
Vials
The tray is designed around cylindrical borosilicate glass vials with the following nominal dimensions:
Vial body outside diameter: 16.0 mm
Vial body height: 45 mm
Overall height with cap installed: approximately 60 mm
Vial Layout
Capacity: 100 vials
Arrangement: 10 × 10 grid
Required geometry:
Well diameter: 17.0 mm
Well depth: 15.0 mm
Center-to-center pitch: 21.0 mm in both directions
Wells must be blind, not through-holes.
Maintain at least 5.0 mm of solid material beneath the bottom of each well.
Provide approximately 1.0 mm × 45° entry chamfer around each well to facilitate vial insertion.
The vials should be held securely enough for routine handling while remaining easy to insert and remove by hand.
Coordinate Identification System
Every vial position must be readily identifiable.
The tray will use an A–J / 1–10 coordinate system.
A through J must appear along both the left and right sides of the vial grid.
1 through 10 must appear along both the front and back of the vial grid.
Each letter and number must align directly with its corresponding row or column.
Markings should be permanently recessed, engraved, molded, or otherwise incorporated into the tray rather than applied as stickers or printing.
The markings must remain easily readable during normal production use.
Front Batch-Identification Surface
The front of the tray should incorporate a prominent angled identification face for application of a temporary production/batch label.
The face should be sufficiently large and angled/positioned so that the label remains readily visible when multiple trays are stacked.
The coordinate numbers along the front should not materially reduce the usable batch-label area.
Removable Stacking Posts
The tray requires four removable corner stacking posts.
The posts should not be permanently incorporated into the tray because many trays will be used individually during production.
Each post should:
Install and remove without tools.
Insert into a compact corner socket in the tray.
Lock positively with a short rotational movement, such as an approximately 45–90° quarter-turn/bayonet-style connection.
Resist accidental withdrawal if the tray is lifted or moved.
Be straightforward for production employees to install and remove repeatedly.
Ideally use the same geometry at all four corners so that only one post design is required.
When the posts are removed, the attachment points should be compact and should not materially interfere with normal use of the tray on a production bench.
The designer may refine the locking mechanism provided these functional requirements are maintained.
Stacking and Vertical Clearance
When loaded trays are stacked, no load may be transferred through the glass vials or vial caps.
The upper tray must be supported entirely by the four corner posts.
The vial is approximately 60 mm high with its cap installed. Because approximately 15 mm of the vial is seated within the tray well, approximately 45 mm projects above the tray's vial-supporting surface.
Provide a minimum of approximately 5 mm clearance above the capped vial.
Accordingly, the underside/supporting surface of the next tray should be approximately 50 mm above the vial-supporting top surface of the lower tray.
The designer should finalize this dimension after accounting for actual tray geometry and manufacturing tolerances.
Upper-Tray Docking
The top of each stacking post should positively locate the tray above it.
Target engagement into the corresponding underside feature: 3–4 mm.
The docking feature should:
Prevent meaningful lateral movement between stacked trays.
Make stacks feel stable and deliberate.
Allow an upper tray to be lifted vertically without excessive resistance.
Avoid deep engagement that makes trays cumbersome to separate.
The designer should develop an appropriate male/female registration geometry.
Tray Construction
The preferred production material is a rigid engineering plastic, with HDPE, polypropylene, acetal, or another suitable material to be evaluated by the designer/manufacturer.
The tray should be:
Rigid under the weight of 100 loaded glass vials.
Durable under repeated production use.
Easy to clean.
Resistant to routine handling and minor impacts.
Free of unnecessarily sharp edges or corners.
Suitable for repeated stacking and unstacking.
We anticipate relatively low-to-moderate initial production quantities, so CNC machining or another economical low-volume manufacturing method should be considered first.
However, the geometry should not unnecessarily prevent future conversion to injection molding if volumes justify tooling.
Colors
We anticipate manufacturing the same tray in multiple colors for visual workflow identification, potentially including:
White – storage/general use
Yellow – standard production
Green – rush/priority production
No dimensional differences are intended between colors.
Design Intent
The finished product should look and function like a purpose-designed professional production tool rather than a simple drilled plastic plate.
Particular attention should be given to:
Overall proportions
Comfortable handling
Corner treatment
Label visibility
Coordinate readability
Stack stability
Easy tray separation
Easy installation/removal of posts
Minimizing unnecessary bulk and material
Manufacturability and cost
We are open to sensible design improvements provided the core dimensional and functional requirements above are preserved.
Required Deliverables
The selected designer should provide:
Complete 3D CAD model of the tray.
Complete 3D CAD model of the removable stacking post.
All mating/docking features.
STEP (.STEP/.STP) files suitable for manufacturing.
Native editable CAD files.
Dimensioned manufacturing drawings in PDF.
Exploded or assembly view showing installation of the removable posts.
Rendered images showing:
Single tray without posts
Single tray with posts installed
Loaded tray with 100 vials
Multiple loaded trays stacked
Recommended manufacturing tolerances for critical features.
Recommended material and manufacturing process for initial production.
Identification of any design changes that would be advisable if the product is subsequently injection molded.
Designer Qualifications
Preference will be given to designers with demonstrated experience in:
Industrial/product design
Plastic components
CNC-machined plastic products
Injection-molded product design
Mechanical locating or quarter-turn/bayonet connections
Stackable trays, racks, fixtures, laboratory products, or production tooling
Design for manufacture (DFM)
Please include examples of comparable work where available.
Scope
This is primarily a design refinement and production-CAD project, not a conceptual design exercise.
We already have the vial dimensions, grid layout, well geometry, coordinate concept, label-face concept, and overall stacking concept established.
We are looking for a designer who can take this design intent, resolve the remaining mechanical details, improve manufacturability and usability, and produce a professional production-ready CAD package. read less
We are seeking an experienced industrial/product CAD designer to finalize the design of a custom 100-vial multi-purpose production and storage tray used in a jewelry production environment.
This is a one-time CAD design project. We will provide reference images and, if useful, the existing preliminary CAD model. The reference model establishes design intent only; the selected designer is expect... read more
This is a one-time CAD design project. We will provide reference images and, if useful, the existing preliminary CAD model. The reference model establishes design intent only; the selected designer is expect... read more
We are seeking an experienced industrial/product CAD designer to finalize the design of a custom 100-vial multi-purpose production and storage tray used in a jewelry production environment.
This is a one-time CAD design project. We will provide reference images and, if useful, the existing preliminary CAD model. The reference model establishes design intent only; the selected designer is expected to engineer and refine the final manufacturable design.
We have already developed the basic concept and dimensional requirements. The selected designer will refine the design into a practical, manufacturable product and provide production-ready CAD files.
The tray must serve two purposes:
Production: Used individually on a workbench to organize and process up to 100 glass vials.
Storage / Work-in-Process: Multiple loaded trays can be securely stacked using removable corner posts.
The removable stacking system is an important part of the project. When stacking is not required, the posts should be removable so the tray remains compact and unobstructed for production use.
Reference images of our current concept will be provided.
Vials
The tray is designed around cylindrical borosilicate glass vials with the following nominal dimensions:
Vial body outside diameter: 16.0 mm
Vial body height: 45 mm
Overall height with cap installed: approximately 60 mm
Vial Layout
Capacity: 100 vials
Arrangement: 10 × 10 grid
Required geometry:
Well diameter: 17.0 mm
Well depth: 15.0 mm
Center-to-center pitch: 21.0 mm in both directions
Wells must be blind, not through-holes.
Maintain at least 5.0 mm of solid material beneath the bottom of each well.
Provide approximately 1.0 mm × 45° entry chamfer around each well to facilitate vial insertion.
The vials should be held securely enough for routine handling while remaining easy to insert and remove by hand.
Coordinate Identification System
Every vial position must be readily identifiable.
The tray will use an A–J / 1–10 coordinate system.
A through J must appear along both the left and right sides of the vial grid.
1 through 10 must appear along both the front and back of the vial grid.
Each letter and number must align directly with its corresponding row or column.
Markings should be permanently recessed, engraved, molded, or otherwise incorporated into the tray rather than applied as stickers or printing.
The markings must remain easily readable during normal production use.
Front Batch-Identification Surface
The front of the tray should incorporate a prominent angled identification face for application of a temporary production/batch label.
The face should be sufficiently large and angled/positioned so that the label remains readily visible when multiple trays are stacked.
The coordinate numbers along the front should not materially reduce the usable batch-label area.
Removable Stacking Posts
The tray requires four removable corner stacking posts.
The posts should not be permanently incorporated into the tray because many trays will be used individually during production.
Each post should:
Install and remove without tools.
Insert into a compact corner socket in the tray.
Lock positively with a short rotational movement, such as an approximately 45–90° quarter-turn/bayonet-style connection.
Resist accidental withdrawal if the tray is lifted or moved.
Be straightforward for production employees to install and remove repeatedly.
Ideally use the same geometry at all four corners so that only one post design is required.
When the posts are removed, the attachment points should be compact and should not materially interfere with normal use of the tray on a production bench.
The designer may refine the locking mechanism provided these functional requirements are maintained.
Stacking and Vertical Clearance
When loaded trays are stacked, no load may be transferred through the glass vials or vial caps.
The upper tray must be supported entirely by the four corner posts.
The vial is approximately 60 mm high with its cap installed. Because approximately 15 mm of the vial is seated within the tray well, approximately 45 mm projects above the tray's vial-supporting surface.
Provide a minimum of approximately 5 mm clearance above the capped vial.
Accordingly, the underside/supporting surface of the next tray should be approximately 50 mm above the vial-supporting top surface of the lower tray.
The designer should finalize this dimension after accounting for actual tray geometry and manufacturing tolerances.
Upper-Tray Docking
The top of each stacking post should positively locate the tray above it.
Target engagement into the corresponding underside feature: 3–4 mm.
The docking feature should:
Prevent meaningful lateral movement between stacked trays.
Make stacks feel stable and deliberate.
Allow an upper tray to be lifted vertically without excessive resistance.
Avoid deep engagement that makes trays cumbersome to separate.
The designer should develop an appropriate male/female registration geometry.
Tray Construction
The preferred production material is a rigid engineering plastic, with HDPE, polypropylene, acetal, or another suitable material to be evaluated by the designer/manufacturer.
The tray should be:
Rigid under the weight of 100 loaded glass vials.
Durable under repeated production use.
Easy to clean.
Resistant to routine handling and minor impacts.
Free of unnecessarily sharp edges or corners.
Suitable for repeated stacking and unstacking.
We anticipate relatively low-to-moderate initial production quantities, so CNC machining or another economical low-volume manufacturing method should be considered first.
However, the geometry should not unnecessarily prevent future conversion to injection molding if volumes justify tooling.
Colors
We anticipate manufacturing the same tray in multiple colors for visual workflow identification, potentially including:
White – storage/general use
Yellow – standard production
Green – rush/priority production
No dimensional differences are intended between colors.
Design Intent
The finished product should look and function like a purpose-designed professional production tool rather than a simple drilled plastic plate.
Particular attention should be given to:
Overall proportions
Comfortable handling
Corner treatment
Label visibility
Coordinate readability
Stack stability
Easy tray separation
Easy installation/removal of posts
Minimizing unnecessary bulk and material
Manufacturability and cost
We are open to sensible design improvements provided the core dimensional and functional requirements above are preserved.
Required Deliverables
The selected designer should provide:
Complete 3D CAD model of the tray.
Complete 3D CAD model of the removable stacking post.
All mating/docking features.
STEP (.STEP/.STP) files suitable for manufacturing.
Native editable CAD files.
Dimensioned manufacturing drawings in PDF.
Exploded or assembly view showing installation of the removable posts.
Rendered images showing:
Single tray without posts
Single tray with posts installed
Loaded tray with 100 vials
Multiple loaded trays stacked
Recommended manufacturing tolerances for critical features.
Recommended material and manufacturing process for initial production.
Identification of any design changes that would be advisable if the product is subsequently injection molded.
Designer Qualifications
Preference will be given to designers with demonstrated experience in:
Industrial/product design
Plastic components
CNC-machined plastic products
Injection-molded product design
Mechanical locating or quarter-turn/bayonet connections
Stackable trays, racks, fixtures, laboratory products, or production tooling
Design for manufacture (DFM)
Please include examples of comparable work where available.
Scope
This is primarily a design refinement and production-CAD project, not a conceptual design exercise.
We already have the vial dimensions, grid layout, well geometry, coordinate concept, label-face concept, and overall stacking concept established.
We are looking for a designer who can take this design intent, resolve the remaining mechanical details, improve manufacturability and usability, and produce a professional production-ready CAD package. read less
This is a one-time CAD design project. We will provide reference images and, if useful, the existing preliminary CAD model. The reference model establishes design intent only; the selected designer is expected to engineer and refine the final manufacturable design.
We have already developed the basic concept and dimensional requirements. The selected designer will refine the design into a practical, manufacturable product and provide production-ready CAD files.
The tray must serve two purposes:
Production: Used individually on a workbench to organize and process up to 100 glass vials.
Storage / Work-in-Process: Multiple loaded trays can be securely stacked using removable corner posts.
The removable stacking system is an important part of the project. When stacking is not required, the posts should be removable so the tray remains compact and unobstructed for production use.
Reference images of our current concept will be provided.
Vials
The tray is designed around cylindrical borosilicate glass vials with the following nominal dimensions:
Vial body outside diameter: 16.0 mm
Vial body height: 45 mm
Overall height with cap installed: approximately 60 mm
Vial Layout
Capacity: 100 vials
Arrangement: 10 × 10 grid
Required geometry:
Well diameter: 17.0 mm
Well depth: 15.0 mm
Center-to-center pitch: 21.0 mm in both directions
Wells must be blind, not through-holes.
Maintain at least 5.0 mm of solid material beneath the bottom of each well.
Provide approximately 1.0 mm × 45° entry chamfer around each well to facilitate vial insertion.
The vials should be held securely enough for routine handling while remaining easy to insert and remove by hand.
Coordinate Identification System
Every vial position must be readily identifiable.
The tray will use an A–J / 1–10 coordinate system.
A through J must appear along both the left and right sides of the vial grid.
1 through 10 must appear along both the front and back of the vial grid.
Each letter and number must align directly with its corresponding row or column.
Markings should be permanently recessed, engraved, molded, or otherwise incorporated into the tray rather than applied as stickers or printing.
The markings must remain easily readable during normal production use.
Front Batch-Identification Surface
The front of the tray should incorporate a prominent angled identification face for application of a temporary production/batch label.
The face should be sufficiently large and angled/positioned so that the label remains readily visible when multiple trays are stacked.
The coordinate numbers along the front should not materially reduce the usable batch-label area.
Removable Stacking Posts
The tray requires four removable corner stacking posts.
The posts should not be permanently incorporated into the tray because many trays will be used individually during production.
Each post should:
Install and remove without tools.
Insert into a compact corner socket in the tray.
Lock positively with a short rotational movement, such as an approximately 45–90° quarter-turn/bayonet-style connection.
Resist accidental withdrawal if the tray is lifted or moved.
Be straightforward for production employees to install and remove repeatedly.
Ideally use the same geometry at all four corners so that only one post design is required.
When the posts are removed, the attachment points should be compact and should not materially interfere with normal use of the tray on a production bench.
The designer may refine the locking mechanism provided these functional requirements are maintained.
Stacking and Vertical Clearance
When loaded trays are stacked, no load may be transferred through the glass vials or vial caps.
The upper tray must be supported entirely by the four corner posts.
The vial is approximately 60 mm high with its cap installed. Because approximately 15 mm of the vial is seated within the tray well, approximately 45 mm projects above the tray's vial-supporting surface.
Provide a minimum of approximately 5 mm clearance above the capped vial.
Accordingly, the underside/supporting surface of the next tray should be approximately 50 mm above the vial-supporting top surface of the lower tray.
The designer should finalize this dimension after accounting for actual tray geometry and manufacturing tolerances.
Upper-Tray Docking
The top of each stacking post should positively locate the tray above it.
Target engagement into the corresponding underside feature: 3–4 mm.
The docking feature should:
Prevent meaningful lateral movement between stacked trays.
Make stacks feel stable and deliberate.
Allow an upper tray to be lifted vertically without excessive resistance.
Avoid deep engagement that makes trays cumbersome to separate.
The designer should develop an appropriate male/female registration geometry.
Tray Construction
The preferred production material is a rigid engineering plastic, with HDPE, polypropylene, acetal, or another suitable material to be evaluated by the designer/manufacturer.
The tray should be:
Rigid under the weight of 100 loaded glass vials.
Durable under repeated production use.
Easy to clean.
Resistant to routine handling and minor impacts.
Free of unnecessarily sharp edges or corners.
Suitable for repeated stacking and unstacking.
We anticipate relatively low-to-moderate initial production quantities, so CNC machining or another economical low-volume manufacturing method should be considered first.
However, the geometry should not unnecessarily prevent future conversion to injection molding if volumes justify tooling.
Colors
We anticipate manufacturing the same tray in multiple colors for visual workflow identification, potentially including:
White – storage/general use
Yellow – standard production
Green – rush/priority production
No dimensional differences are intended between colors.
Design Intent
The finished product should look and function like a purpose-designed professional production tool rather than a simple drilled plastic plate.
Particular attention should be given to:
Overall proportions
Comfortable handling
Corner treatment
Label visibility
Coordinate readability
Stack stability
Easy tray separation
Easy installation/removal of posts
Minimizing unnecessary bulk and material
Manufacturability and cost
We are open to sensible design improvements provided the core dimensional and functional requirements above are preserved.
Required Deliverables
The selected designer should provide:
Complete 3D CAD model of the tray.
Complete 3D CAD model of the removable stacking post.
All mating/docking features.
STEP (.STEP/.STP) files suitable for manufacturing.
Native editable CAD files.
Dimensioned manufacturing drawings in PDF.
Exploded or assembly view showing installation of the removable posts.
Rendered images showing:
Single tray without posts
Single tray with posts installed
Loaded tray with 100 vials
Multiple loaded trays stacked
Recommended manufacturing tolerances for critical features.
Recommended material and manufacturing process for initial production.
Identification of any design changes that would be advisable if the product is subsequently injection molded.
Designer Qualifications
Preference will be given to designers with demonstrated experience in:
Industrial/product design
Plastic components
CNC-machined plastic products
Injection-molded product design
Mechanical locating or quarter-turn/bayonet connections
Stackable trays, racks, fixtures, laboratory products, or production tooling
Design for manufacture (DFM)
Please include examples of comparable work where available.
Scope
This is primarily a design refinement and production-CAD project, not a conceptual design exercise.
We already have the vial dimensions, grid layout, well geometry, coordinate concept, label-face concept, and overall stacking concept established.
We are looking for a designer who can take this design intent, resolve the remaining mechanical details, improve manufacturability and usability, and produce a professional production-ready CAD package. read less
Things to know
Expert
Skill Level
$500
Fixed-rate (USD)
Part-time
Job type
Under 1-month
Job duration
Areas of expertise
2D & 3D Mechanical Design
3D CAD Assemblies & Parts
3D CAD Design
Design for Manufacturing (DFM
Injection Mold Design
Plastic Product Design
SolidWorks
+4 more
Job categories
Product Engineering Services
Mechanical Design Services
Industrial Design Services
About the client
Payment ready
Canada (06:50 am)
Posted
Active
Job activity
13 Applicants
0 interviews in progress
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facade engineer - autodesk inventor
Remote - Posted
Develop detailed shop drawings, focusing primarily on curtain wall systems.
Develop detailed shop drawings, focusing primarily on curtain wall systems.
Prepare shop, fabri...
Architectural 3D Modeling
Industrial Design Services
3D Modeling
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Freelance mechanical spring designer
Remote - Posted
Need to design coil type spring as per data attached. Need the following details per sl.no. of spring.
A) length of the spring
B) no. Of coils ( as minimum as possible)
C)...
Mechanical Design Services
Product Engineering Services
Machine Design
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Locksmith Pinning Mat / Lockpicks Design
Remote - Posted
We are looking for someone to work with us long term for cad designs for prototyping things like lockpicks and rubber mats for our industry. This will be a process of udpates...
Industrial Design Services
3D Design Services
3D Modeling
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ACRYLIC DIYA
Remote - Posted
acrlic diya need to be given for lasercut .drawing needed for that
2D CAD Drafting Services
Industrial Design Services
Product Engineering Services
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Mechanical Engineer / Product Designer Needed — Folding Chair Mechanism & CAD Development
Remote - Posted
Project Overview
We are developing a premium, lightweight, durable folding outdoor/camping chair where the frame, joints, hardware, fabric, and accessories are engineered for...
Product Engineering Services
3D Modeling
Mechanical Design Services
Mechanical CAD Design
Machine Design
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