January 5, 2026
Description
This is a simple grip/shroud/handle for the very commonly sold online Spot Welder Pen that can be found on eBay, AliExpress, Amazon, etc. It simply slides over one end and is secured with two M3x8mm screws (8-12mm should be fine). This grip makes using the pen much more pleasant. I've also included the Fusion 360 archive and .STEP CAD files for easier modifications to the design.
NOTE: In the images above, I am using a slightly modified version of the design as I've made a few mods to my pen, but the version I've uploaded here has the round cutout removed. Also, it's slightly tighter as most people don't have tape wrapped around their handles like I do. With that said, you may need to scale the handle slightly.
Link to my Spot Welder Pen on AliExpress; however, most other similar designs will likely work.
Don't forget to post your make of this model! You get rewarded with up to 10 Prusameters which can be redeemed for free Prusa gear!
License:
Creative Commons — Attribution — Noncommercial — Share Alike
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