Sliding IS Brake Mount

[Daniel_Y]

Even though this style of SS dropout is not the fanciest design, I think it looks great. There is something elegant and punk rock about bolting a singlespeed wheel to a track dropout .

@Spencermon

Also, I learned some good things about Send Cut Send. The minimum order is $30 but that doesn’t have to be any single part.

Another tip, in the notes, you can ask for steel parts to be media tumbled. It removes the slag, rounds off the corners, and leaves a nice finish.

@Spencermon

If I were feeling really industrious, I could design several different versions based on what seat stay angle people want to use.

I did some sensitivity analysis with the paragon 1.5 dropout. I could bin 5deg of CS-SS angles without it affecting the brake caliper position more than .5mm. I ended up making two custom tabs: for 40-45deg and 45-50deg CS-SS angles.

With your design, I don’t think this is as easy because the tab needs to be horizontal-ish

@Spencermon

@Daniel_Y I wonder if that would be a good candidate for the open source CAD parts library?

This is on my to-do list! Still need to find the best way to store files… But first I am working on getting people more comfortable with 3D and 2D CAD.

[Tutorial] Drawing an ISO brake tab in Fusion 360

Intro: This is a quick tutorial that shows you how to design an ISO brake tab in Fusion 360. Even if you don’t need an ISO brake tab, I think its still a worthwhile exercise that teaches you how to: Design to a standard Fumble around with sketch constraints Export 3D parts to 2D DXF drawings for laser cutting Finally, there are a few good reasons to design your own ISO tab: Personalize the aestetics of your frame Save money (laser cut tabs are $4-5) Save time. Since the tab is designed for …

For now, I think the best way would be to post a dimensioned 2D drawing, or just a screenshot of your sketch, so people can re-create it for their designs. Honestly, it’s not too hard to generate custom DXF files either, but most people won’t know their CS SS angle till they have the dropouts physically on hand.

If it were me, I would use the compact design, then cut out a “trim to length” version for others.