This model is kind of junk (offset isn't the same on left and right side and the tolerances are tight for the dial, plus the logo)
I modified it to fix the print issues and removed the branding. LMK if you'd like it.
Discussion
Please. The only issue I had with this was the tolerance for the hole that the stamp went into was a little tight, but a small square file and patience fixed that. I don't know if Blockmit is the original creator of this or the ones that decided to make/sell them - that's why I didn't un-brand it. If they were kind enough to provide it for free, I'm not going to deprive them of a little social media recognition.
Also - I found a far better and much more streamlined method for bolting all the washer together than the bolt and wingnut they show. I'll snag a pic of my finished product and share.
Please do! I'll dig up the STL and send it over to you when I get home.