Vibe CAD: Design a 2 Finger Robot Gripper Blind
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CAD Design
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arhons
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TIME REMAINING: 29 days, 8 hours
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Description:
We are looking for CAD designers, mechanical engineers, and hardware designers to create a compact, manufacturable robotic gripper using Kinth’s AI-native CAD platform.The goal is to design a two-finger parallel robotic gripper that could mount to a small desktop robotic arm, educational robot arm, or light industrial automation setup. The design should be mechanically plausible, cleanly modeled, and suitable for prototyping.
The gripper should be designed around the following constraints:
- Maximum overall body size: 120 mm L × 80 mm W × 45 mm H
- Maximum total gripper width with fingers open: 120 mm
- Target weight: under 250 g, assuming printed polymer parts and standard metal fasteners
Gripping Function:
- Two-finger parallel gripper
- Stroke/opening range: 0–60 mm
- Minimum usable grip width: 5 mm
- Finger length from pivot/slider to fingertip: 45–65 mm
- Replaceable fingertip pads: approximately 20 mm L × 10 mm W × 5 mm H
- Fingertips should include holes, slots, or simple fastener geometry for replacement
- Actuator Space: Include a mounting cavity for a standard hobby servo, using this envelope:
- 40 mm L × 20 mm W × 38 mm H
- Servo output shaft location should be clearly represented
- Include mounting holes for the servo:
- M2 or M2.5 screw holes
- Hole diameter: 2.2–2.7 mm
- The mechanism may use a linkage, cam, rack-and-pinion, or sliding jaw design
Mounting Interface:
- Include a flat rear or top mounting plate for attaching to a robot arm
- Mounting plate should be at least 50 mm × 50 mm
- Include a standard four-hole mounting pattern:
- 31.5 mm × 31.5 mm square bolt pattern
- Hole diameter: 3.2 mm for M3 screws
- Include a central clearance hole:
- 10–16 mm diameter
- Mounting face should be flat and clearly accessible
Manufacturing Constraints:
- Design should be suitable for FDM 3D printing or CNC machining
- Minimum wall thickness: 2.0 mm
- Recommended wall thickness: 2.5–3.0 mm
- Minimum feature size: 1.5 mm
- Minimum clearance between moving printed parts: 0.4–0.6 mm
- Fillets should be used on major stress points:
- Suggested fillet radius: 1.5–3.0 mm
- Avoid unsupported overhangs greater than 45 degrees where possible
- Avoid thin decorative fins, floating parts, or non-manufacturable mesh geometry
Fasteners and Assembly: Use common hardware only:
- M2, M2.5, or M3 screws
- 3 mm pins or shoulder screws
- Optional 5 mm or 6 mm shafts
- Include at least 4 mounting holes for assembly
- Include realistic part separations if the design is an assembly
- Any moving jaws, links, or gears should have visible pin holes or axle supports
Cable and Electronics Considerations:
-Include a basic cable exit path for the servo wire
-Cable channel should be at least 5 mm wide × 3 mm deep
-Avoid blocking access to servo screws or mounting screws
The final design should be a believable mechanical gripper that could be prototyped, assembled, and tested. We are not looking for a render-only concept. We want a clean CAD model with functional geometry, real dimensions, and practical manufacturing logic.
Wants:
Submissions will be judged based on:Use of Kinth:
- Clear evidence that Kinth was used to generate or refine the model.
- Bonus $100 if the designer includes a video of their generation and the prompts they used. Extra $50 if they make an animation/dynamic simulation in Kinth.
Dimensional Accuracy:
- Fits within the required 120 mm × 80 mm × 45 mm body envelope.
Supports a 0–60 mm gripping range.
-Includes the required servo cavity and mounting interface.
Mechanical Plausibility:
-The gripper should have a clear actuation method.
-Moving parts should have realistic pivots, sliders, clearances, and stops.
-The design should not rely on impossible or purely decorative motion.
Manufacturability:
-Appropriate wall thicknesses, clearances, fillets, and fastener choices.
-Suitable for FDM 3D printing, CNC machining, or basic prototype assembly.
-Avoids mesh-like, organic, or uneditable geometry.
CAD Quality:
-Clean, connected, editable CAD geometry.
-STEP file strongly preferred.
-Parts should be properly aligned and not floating or intersecting incorrectly.
Industrial Design
-Sleek, professional, compact appearance.
-Looks like a real robotic end-effector, not a toy or decorative object.
Documentation
-Includes screenshots/renders from multiple angles.
-Includes a short explanation of the mechanism, manufacturing method, and how Kinth was used.
Don't Wants:
Please do not submit:Render-only concepts with no CAD file.
Mesh-only models that cannot be edited.
Designs copied from existing online CAD libraries.
A robotic hand with five fingers.
A claw with no realistic actuator, pivot, or sliding mechanism.
Parts that float, intersect incorrectly, or are not connected.
Decorative sci-fi designs that ignore manufacturing constraints.
Designs with walls thinner than 2 mm.
Designs with moving-part clearances below 0.3 mm for 3D-printed parts.
Designs that cannot fit a standard servo envelope.
Designs with no mounting interface for a robot arm.
Ask for Sample:
STEP file or editable CAD file.
3–5 screenshots/renders:
Front view
Side view
Top view
Isometric view
View showing the mounting interface
A short written description, around 150–300 words, explaining:
The intended use case
The actuation method
The gripping range
The manufacturing method
The estimated material
How Kinth was used
Required:
Screenshot of your Kinth prompt or workflow
Optional but encouraged:
Screen recording of your design process in Kinth
Software:
- Kinth (https://kinth.aI)
Additional Information
UPDATED REQUIREMENT: Weight can be anything (no longer limited at 250 g)
Prepaid Prize
Entries
#3 Servo-Driven Two-Finger Parallel Robotic Gripper
by muhammadsaadi
Hidden design
Download Files
#2 Two Finger Gripper Robotic Arm Assembly;
by danielf4301
Hidden design
Download Files
#1 Finger Robot Gripper
by kadiry2
Hidden design
Download Files
Discussion
So i was making design and the tool required is paid one
We have free alternative like Zoo Zookeeper
And cadcrowd policy don't allow to to use specific software
So can i make it on zookeeper or should i skip it
We have free alternative like Zoo Zookeeper
And cadcrowd policy don't allow to to use specific software
So can i make it on zookeeper or should i skip it
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