22mm Antweight Combat Robot Wheel Mold product image (1)
22mm Antweight Combat Robot Wheel Mold product image (2)
22mm Antweight Combat Robot Wheel Mold product image (3)
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22mm Antweight Combat Robot Wheel Mold

₹0.00
A grippy 22mm wheel mold built for 150g antweight combat robots, and easy to scale up for anything bigger

This mold pours a 22mm silicone wheel sized for the antweight (150g) combat robot class. The design uses a slight draft angle on every exterior wall so the cured wheel pops free clean(er), and anchor holes molded into the hub insert lock the silicone to your hub instead of letting it spin loose under impact.

Run a lower Shore hardness silicone, around 15A, and you get a soft, high-grip wheel built for the traction a battlebox floor demands. 

Want a bigger wheel? Scale the mold up in your slicer or CAD software and the same design principles hold: keep the draft angle, keep the anchor holes on your hub insert, and adjust your pour volume to match. This makes the file a solid starting point for beetleweight and larger combat classes too.

What's included: 

  • the 3D-printable mold STL file, ready to slice and print.  
  • Editable STEP files 

Specs:

  • Finished wheel diameter: 22mm
  • Recommended silicone: Shore 15A for max grip
  • Fasteners: m3 machine screws to hold the hub insert (12mm) & m3 square nuts (low profile)
  • Watch the full pour and demold process: How to Pour Your Own Silicone Wheels

Accessing STEP Files

STEP files are uploaded in a .zip folder. You must first unzip the folder in order to import the file into your CAD program of choice. 

Autodesk Fusion 360

  1. After unzipping the downloaded folder, open Fusion 360.

  2. Click the "Show Data Panel" icon in the upper-left corner (it looks like a grid/waffle).

  3. Navigate to your desired project and folder.

  4. Click the "Upload" button.

  5. Select the .step or .stp file from your computer and click "Open."

  6. Once the upload is complete, the file will appear in your Data Panel, ready to be inserted into your design.

Detailed Instructions

Onshape

  1. After unzipping the downloaded folder, log in to your Onshape account.

  2. From the "Documents" page, click the "Create" button and select "Import files...".

  3. Alternatively, inside an existing document, click the "+" icon in the bottom-left corner and select "Import."

  4. Select the .step or .stp file from your computer.

  5. Choose your desired import options in the dialog box.

  6. The imported file will appear as a new tab in your document.

Detailed Instructions

SolidWorks

  1. After unzipping the downloaded folder, open SolidWorks.

  2. Go to "File" > "Open."

  3. In the "Open" dialog box, change the file type to "STEP files (*.step, *.stp)."

  4. Navigate to and select the STEP file you wish to import.

  5. Click "Open."

  6. SolidWorks may prompt you to run "Import Diagnostics" to check for and fix any potential issues with the imported geometry. It is recommended to do so.

Detailed Instructions

3D Printing Tips

If the design includes 3D printed parts, I highly recommend you print the part out of PCTG. It has some of the highest impact resistance and non-catastrophic breaking for robot parts.

  • If you're looking for a brand, 3D-Fuel is pretty solid in the Americas
  • Azure is better in the EU

For Mechanical/structural parts, I recommend: 

  • 0.6mm Nozzles over 0.4mm. Wider nozzles produce stronger prints in shorter periods of time over thinner nozzles. 
  • Minimum 4 walls. 
  • 30-40% gyroid infill

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