Olympic Barbell collar with quick release
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Olympic Barbell collar/clamp/clip with quick release handle and TPU grip pads.
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Model information
- Source
- Printables
- Category
- Indoor Sports
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
Olympic Barbell collar/clamp/clip with quick release handle and TPU grip pads (essential for good clamping force).
Features
- Quick release handle.
- TPU printed Grip pads.
Variants
- Fully 3D Printed - hinge joints are 3D printed. Single part print.
- Bolt hinge joints - hinge joints use 4mm bolts and nylon lock nuts to provide more robust long term use. Multi-part print.
Non-printed materials required
- 5 minute epoxy glue or similar that works with TPU and ABS filament.
- Kitchen wax paper or similar (to prevent glue adhesion).
- Masking tape or similar.
Bolt hinge joints variant - you will also need the following 4mm dia. Cap head socket bolts (partially threaded) with nylon lock nuts:
- 2 x 50mm bolts.
- 2 x 15mm bolts.
- 1 x 25mm bolt.
- 5 x Nylon lock nuts.
Print settings
| Property | Value | Notes |
| Filament type | ABS/ASA and TPU |
|
| Filament color | Any | |
| Layer height | 0.2 to 0.3mm | |
| Infill | Grip pads: 15% Other: 30% | |
| Perimeters | Grip pads: 2 Other: 4-6 | To maximize strength, the Collar requires more perimeters than normal. |
| Support material | Yes | Organic or Snug supports work well with ABS/ASA. |
| Model orientation |
| |
| Clean up | Pliers and Hobby knife. |
Assembly
Bolt hinge joints
Before assembly, insert the the Nylon lock nuts into the holes provided - you can use small pieces of tape to keep them in place before your insert the bolts.
Correct Handle orientation - before adding the bolts through the Handle, make sure that when it's in the closed position the ridge lines of the Handle are pointing to the OUTSIDE of the collar!
Gluing the Grip pads
IMPORTANT: Before gluing the Grip pads to the collar, test them out on a barbell to make sure they have suitable clamping force! You may need to decrease/increase their thickness and/or use a different hardness TPU.
- Wrap a thin layer of the kitchen wax paper around a barbell and secure in place at both ends with the tape.
- Rough up the Grip pads and their slot on the inside of the Collar with 80 grit sand paper.
- Apply glue to the slots on the inside of the Collar.
- Slide the Grip pads into the slots.
- Carefully slide the collar onto the barbell with the wax paper, and then clamp it down with the quick release handle - the Grip pads will mold themselves to fit the barbell and collar.
- Wait for the glue to dry.
- Release the collar and remove the wax paper.