Remote
Work location
Mechanical CAD for Tactical Optics Accessory (DFM for MJF Nylon) Ended
About the job
We are developing a premium, dual-hinge lens cap system for tactical LPVO riflescopes. The mechanical logic, physics, and dimensions have already been calculated. We need a highly proficient Mechanical CAD Designer to execute the 3D modeling flawlessly and ensure it is 100% optimized for HP Multi Jet Fusion (MJF) PA12 3D printing.
This is a fast-execution project. You do not need to invent the mechanics; you just need to model our blueprint cleanly without basic errors (e.g., no trapped powder voids).
The Product Architecture:
A rigid 34mm split-clamp Base Collar.
A honeycomb "Killflash" cap (hinged on the right).
A solid "Blackout" cap (hinged on the left).
A rigid 34mm-to-30mm step-down adapter shim.
Key Mechanical Features to Model:
Radial O-Ring Seal (Friction Catch): We are NOT using plastic snap hooks. The base collar will have a spigot with a groove holding a 2.0mm thick rubber O-ring. The caps will slide over this O-ring, using a "Yeti Thermos" style radial squeeze to hold the caps shut via friction.
270-Degree Cam Detent Hinges: The caps must peel open 270 degrees and lock flat against the scope. You must model a mechanical cam detent into the hinge knuckle so the PA12 plastic flexes and "clicks" into place. (NO magnets, NO metal coil springs).
Hardware Housing: The split clamp must feature an integrated housing for an M3 socket head screw and a captive M3 hex nut.
The Rigid Shim: A 34mm to 30mm split-ring adapter printed in the same... read more
This is a fast-execution project. You do not need to invent the mechanics; you just need to model our blueprint cleanly without basic errors (e.g., no trapped powder voids).
The Product Architecture:
A rigid 34mm split-clamp Base Collar.
A honeycomb "Killflash" cap (hinged on the right).
A solid "Blackout" cap (hinged on the left).
A rigid 34mm-to-30mm step-down adapter shim.
Key Mechanical Features to Model:
Radial O-Ring Seal (Friction Catch): We are NOT using plastic snap hooks. The base collar will have a spigot with a groove holding a 2.0mm thick rubber O-ring. The caps will slide over this O-ring, using a "Yeti Thermos" style radial squeeze to hold the caps shut via friction.
270-Degree Cam Detent Hinges: The caps must peel open 270 degrees and lock flat against the scope. You must model a mechanical cam detent into the hinge knuckle so the PA12 plastic flexes and "clicks" into place. (NO magnets, NO metal coil springs).
Hardware Housing: The split clamp must feature an integrated housing for an M3 socket head screw and a captive M3 hex nut.
The Rigid Shim: A 34mm to 30mm split-ring adapter printed in the same... read more
We are developing a premium, dual-hinge lens cap system for tactical LPVO riflescopes. The mechanical logic, physics, and dimensions have already been calculated. We need a highly proficient Mechanical CAD Designer to execute the 3D modeling flawlessly and ensure it is 100% optimized for HP Multi Jet Fusion (MJF) PA12 3D printing.
This is a fast-execution project. You do not need to invent the mechanics; you just need to model our blueprint cleanly without basic errors (e.g., no trapped powder voids).
The Product Architecture:
A rigid 34mm split-clamp Base Collar.
A honeycomb "Killflash" cap (hinged on the right).
A solid "Blackout" cap (hinged on the left).
A rigid 34mm-to-30mm step-down adapter shim.
Key Mechanical Features to Model:
Radial O-Ring Seal (Friction Catch): We are NOT using plastic snap hooks. The base collar will have a spigot with a groove holding a 2.0mm thick rubber O-ring. The caps will slide over this O-ring, using a "Yeti Thermos" style radial squeeze to hold the caps shut via friction.
270-Degree Cam Detent Hinges: The caps must peel open 270 degrees and lock flat against the scope. You must model a mechanical cam detent into the hinge knuckle so the PA12 plastic flexes and "clicks" into place. (NO magnets, NO metal coil springs).
Hardware Housing: The split clamp must feature an integrated housing for an M3 socket head screw and a captive M3 hex nut.
The Rigid Shim: A 34mm to 30mm split-ring adapter printed in the same PA12 Nylon, featuring internal "crush ribs" to bite into the scope tube.
DFM (Design for Manufacturing) Requirements:
Target manufacturing process is MJF PA12.
Hinge pin holes must be sized correctly for 3mm stainless steel dowel pins.
You must ensure ZERO enclosed voids (e.g., knurling flutes buried under hinge brackets) to prevent trapped powder issues.
Required Software:
Fusion 360, Onshape, or SolidWorks. (You will provide the native source files and the exported .STEP files). read less
This is a fast-execution project. You do not need to invent the mechanics; you just need to model our blueprint cleanly without basic errors (e.g., no trapped powder voids).
The Product Architecture:
A rigid 34mm split-clamp Base Collar.
A honeycomb "Killflash" cap (hinged on the right).
A solid "Blackout" cap (hinged on the left).
A rigid 34mm-to-30mm step-down adapter shim.
Key Mechanical Features to Model:
Radial O-Ring Seal (Friction Catch): We are NOT using plastic snap hooks. The base collar will have a spigot with a groove holding a 2.0mm thick rubber O-ring. The caps will slide over this O-ring, using a "Yeti Thermos" style radial squeeze to hold the caps shut via friction.
270-Degree Cam Detent Hinges: The caps must peel open 270 degrees and lock flat against the scope. You must model a mechanical cam detent into the hinge knuckle so the PA12 plastic flexes and "clicks" into place. (NO magnets, NO metal coil springs).
Hardware Housing: The split clamp must feature an integrated housing for an M3 socket head screw and a captive M3 hex nut.
The Rigid Shim: A 34mm to 30mm split-ring adapter printed in the same PA12 Nylon, featuring internal "crush ribs" to bite into the scope tube.
DFM (Design for Manufacturing) Requirements:
Target manufacturing process is MJF PA12.
Hinge pin holes must be sized correctly for 3mm stainless steel dowel pins.
You must ensure ZERO enclosed voids (e.g., knurling flutes buried under hinge brackets) to prevent trapped powder issues.
Required Software:
Fusion 360, Onshape, or SolidWorks. (You will provide the native source files and the exported .STEP files). read less
We are developing a premium, dual-hinge lens cap system for tactical LPVO riflescopes. The mechanical logic, physics, and dimensions have already been calculated. We need a highly proficient Mechanical CAD Designer to execute the 3D modeling flawlessly and ensure it is 100% optimized for HP Multi Jet Fusion (MJF) PA12 3D printing.
This is a fast-execution project. You do not need to invent the... read more
This is a fast-execution project. You do not need to invent the... read more
We are developing a premium, dual-hinge lens cap system for tactical LPVO riflescopes. The mechanical logic, physics, and dimensions have already been calculated. We need a highly proficient Mechanical CAD Designer to execute the 3D modeling flawlessly and ensure it is 100% optimized for HP Multi Jet Fusion (MJF) PA12 3D printing.
This is a fast-execution project. You do not need to invent the mechanics; you just need to model our blueprint cleanly without basic errors (e.g., no trapped powder voids).
The Product Architecture:
A rigid 34mm split-clamp Base Collar.
A honeycomb "Killflash" cap (hinged on the right).
A solid "Blackout" cap (hinged on the left).
A rigid 34mm-to-30mm step-down adapter shim.
Key Mechanical Features to Model:
Radial O-Ring Seal (Friction Catch): We are NOT using plastic snap hooks. The base collar will have a spigot with a groove holding a 2.0mm thick rubber O-ring. The caps will slide over this O-ring, using a "Yeti Thermos" style radial squeeze to hold the caps shut via friction.
270-Degree Cam Detent Hinges: The caps must peel open 270 degrees and lock flat against the scope. You must model a mechanical cam detent into the hinge knuckle so the PA12 plastic flexes and "clicks" into place. (NO magnets, NO metal coil springs).
Hardware Housing: The split clamp must feature an integrated housing for an M3 socket head screw and a captive M3 hex nut.
The Rigid Shim: A 34mm to 30mm split-ring adapter printed in the same PA12 Nylon, featuring internal "crush ribs" to bite into the scope tube.
DFM (Design for Manufacturing) Requirements:
Target manufacturing process is MJF PA12.
Hinge pin holes must be sized correctly for 3mm stainless steel dowel pins.
You must ensure ZERO enclosed voids (e.g., knurling flutes buried under hinge brackets) to prevent trapped powder issues.
Required Software:
Fusion 360, Onshape, or SolidWorks. (You will provide the native source files and the exported .STEP files). read less
This is a fast-execution project. You do not need to invent the mechanics; you just need to model our blueprint cleanly without basic errors (e.g., no trapped powder voids).
The Product Architecture:
A rigid 34mm split-clamp Base Collar.
A honeycomb "Killflash" cap (hinged on the right).
A solid "Blackout" cap (hinged on the left).
A rigid 34mm-to-30mm step-down adapter shim.
Key Mechanical Features to Model:
Radial O-Ring Seal (Friction Catch): We are NOT using plastic snap hooks. The base collar will have a spigot with a groove holding a 2.0mm thick rubber O-ring. The caps will slide over this O-ring, using a "Yeti Thermos" style radial squeeze to hold the caps shut via friction.
270-Degree Cam Detent Hinges: The caps must peel open 270 degrees and lock flat against the scope. You must model a mechanical cam detent into the hinge knuckle so the PA12 plastic flexes and "clicks" into place. (NO magnets, NO metal coil springs).
Hardware Housing: The split clamp must feature an integrated housing for an M3 socket head screw and a captive M3 hex nut.
The Rigid Shim: A 34mm to 30mm split-ring adapter printed in the same PA12 Nylon, featuring internal "crush ribs" to bite into the scope tube.
DFM (Design for Manufacturing) Requirements:
Target manufacturing process is MJF PA12.
Hinge pin holes must be sized correctly for 3mm stainless steel dowel pins.
You must ensure ZERO enclosed voids (e.g., knurling flutes buried under hinge brackets) to prevent trapped powder issues.
Required Software:
Fusion 360, Onshape, or SolidWorks. (You will provide the native source files and the exported .STEP files). read less
Things to know
Intermediate
Skill Level
$125
Fixed-rate (USD)
Part-time
Job type
Under 1-month
Job duration
Areas of expertise
3D Design
DESIG
Design 3D
Design a
design
+2 more
Job categories
3D Modeling
Product Engineering Services
Design for Manufacturability (DFM Services)
Design for Additive Manufacturing
Mechanical CAD Design
+2 more
About the client
Payment not ready
United States (11:14 pm)
Posted
Active
Job activity
44 Applicants
0 interviews in progress
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