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[MENTION=136384]unterhausen[/MENTION] & [MENTION=19437]Dan Burkhart[/MENTION]
I have been working on a calibration device. Dan, I appreciated the video links and came up with a few ideas on how to build one that 1. requires no welding; 2. can be assembled with mostly hand tools, a drill press and a single tap will be required in addition to normal hand tools; 3. provides consistent results. One thing I noticed, a lot of people that have built calibration devices might have published a picture or to, there are even a few posts here on BikeForums. No one has a list of parts nor do they have instructions on how to assemble one. Here is an image of what I am working on.


I am planning on including a complete parts list. I have only found a couple for sale online, and they were both over $500 USD. I think this one can be built as is for under $200, if you have to start from $0. A cheaper version that uses a smaller capacity crane scale and smaller extrusion could probably be built for under $100 USD. Of course those estimates are based on sourcing from China or eBay. There are a few 3D printed parts. I had to source a lot from China (AliExpress Black Friday sales) so I won't have built the first one until nearly the end of the year. I have no intention of making these for sale, I just want to supply the 3D design. I do have the design that is simpler than this one nearly done.

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