3D Printed Disc Tab Jig- Mtbr.com
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  1. #1
    mtbr member
    Join Date
    Dec 2007

    3D Printed Disc Tab Jig

    I'm not a framebuilder, I'm a designer and prototyper. I've started a journey of building a "sleeper bike" for a commuter. I'm building it around a 1996 Trek 850 steel frame. The frame originally came set up for canti brakes only. It had that weird cable guide just under the seat collar. Remember those?! Anyway...I wanted to convert it to disc but didn't want to spend $200+ sending it away for the mod. I also didn't want to spend $150 on a pre-fab jig. So I drew up and 3D printed a jig and I'm going to bring it to a local welder. I have a good relationship with the welder and all I'll have to do is set it up with the jig and they'll zip it right on. I realize that at a few points along the way something could go wrong, but I'm willing to measure twice, so to speak. It is after all a '90s steel frame that was $25 at the local community bike shop. It's really fun and I get to work with two local establishments and a good friend of mine (with the 3D printer). Here are a few photos and a link to download the files if you'd like. I'm still waiting for the actual steel disc tabs to be delivered.

    Link to the files on Thingiverse: https://www.thingiverse.com/thing:3574514

    3D Printed Disc Tab Jig-tab-1.jpg

    3D Printed Disc Tab Jig-tab-2.jpg

  2. #2
    mtbr member
    Join Date
    Nov 2009
    Nice idea. I guess a couple quick tacks would hold the tab in place and the jig could be removed so no heat would transfer to it. Nice job bud.

  3. #3
    Frame Building Moderator
    Reputation: Walt's Avatar
    Join Date
    Jan 2004

    You can also do this (if you have a disc frame already) by using a wheel and mechanical caliper as your "jig".


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