If you would like to customize the size, you must download the .f3z file, and then you can change the dimensions by going to Modify -> Change Parameters. Any reasonable dimension will work, but if it's too small/big, Fusion360 can error. If Fusion only gives a warning and the model appears fine, that is okay.

3 different jaw faces are available, you can also create your own with the attached .step file.

To assemble this design, you will need

• 9x - M3 heat seat insert
• 8x - M3 6mm screw
• 1x - M3 20mm screw

The .step and .f3z file tells you where to place the screws. The assembly is self-explanatory.