I took a broken adult titanium road bike and cut it up , converting it in to a balance bike for my 1.5yo niece.
What I would like to do is machine to caps to thread into the bottom bracket for the bike.
According to what I can find online this is the thread:
1.37 in x 24 TPI; 33.6mm - 33.9mm. 68mm (road)
But I dont know how to translate this into solidworks, or fusion in cam, I’m also not sure what cutter to use since this is not a standard thread (couldn’t find it in the drop down list under Inch -d ie):
If the thread isn’t a standard you can select custom thread and enter all the thread parameters. Which CAM extens are you using?
A single point thread mill will machine any thread within its profile envelope, including non-standard pitches. I have 3 different sized and can mill anything from an 80 through .5 TPI. Including metric, standard, or whatever I feel like. 32.125 TPI if I want. I just need to select the one appropriate for the thread depth.
I think I worked out it wasn’t standard and I need to work out what this thread is and make a custom thread as your mentioned. I’m currently not using any extensions. I model in Solidworks and then cut in fusion CAM.
Ahh, unfortunately in fusion i would be less than no help there. I can do it in SW no problem. I use SolidCAM (not SolidworksCAM which is commonly confused) and i would be able to help there.
Get yourself a good thread pitch gauge. I got 1 gauge that has both imperial and metric its a Mitutoyo. I use it constantly.
Mitutoyo 188-152, Inch/Metric Screw Pitch Gage, 4 to 56 TPI, 0.5mm to 6mm, 28 Leaves Amazon.com
