Derailleur hangers can be extremely difficult if not impossible to find for some bikes. Usually, finding hangers for these bikes starts on Ebay and ends in a frantic forum chat bribing the community for leads on where to find your derailleur hanger. Sometimes you get lucky, sometimes you don't.
Fortunately, there is an easy solution now. Just send me your messed up hanger and let me make you a new one. Simple as that.
If it's so simple, why doesn't anybody else do it? Well, OK, it is simple from the customer's position, but requires significant time and effort on my end. Let's walk through the process of how we recreate a CNC machined hanger:
- Create a 3D model of your hanger. This is the hardest part. I use precision measuring instruments that measure to within .0005" of an inch.
- For complex hanger geometries, 3D print a hanger from the 3D model that we created in the previous step. This is pretty easy and fast, and allows me to verify that all of our dimensions are correct. In rare cases, I send these models to our customers to verify the size is correct.
- Setup the CNC machine. For most machine shops, this would take a full day of work and cost $500+ just for this step. I am able to use 3D printing technology and CAM templates to make this fast and efficient.
- Cut your part from a solid billet of 6061 aluminum. I let the machine do the work for me, and stick around just to make sure nothing too exciting happens (like launching the part out of the vise at high speed!)
- Send the part to our excited customer!