DIY Car Alignment Tool
Car alignments can be expensive and if you are into motorsports at all it can be even more expensive to get the custom specs you are looking for. In actuality, aligning your car isn't all that difficult of a process to do in your garage. There are a few tools out there like this but all run from 500-1000 bucks. Are they better then my DIY version? Yes. but! you will save lots of money this way and this works just fine.
You will need to print out 4 of everything. The alignment blocks have a left and right, but all the other parts are interchangeable per side. You will need 3/4 OD square tubing (i suggest aluminum) and 1in OD round tubing of some kind. I used poles from wire shelving - https://www.uline.com/Grp_718/Wire-Shelving-Posts but you are free to use whatever you want that fits that OD. The holes for the set screws will need to be tapped. I used M8x1.25 cause it's super common, but use whatever you want for the set screws. For the aluminum square tubing, I used some from Home Depot and some from Grainger. Even though both were listed as 3/4in square tubing they fit different with home depot's tubing being a tighter fit but also a bunch more expensive but also more convenient if you don't plan ahead. You may have to play with tolerances is what I am getting at here. The Uline poles fit really well with the model as is though your mileage may vary if you get a different brand.
I am not sure why some are 3mf and some are stl...not sure what I was doing there. If I remember I will export them all in stl.