Shimano bleed cup

thingiverse

bleed cup for shimano breaks, this works amazingly well. There are 2 versions with the internal diameter as a variable. 2mm and 2.5mm. Depending on your printer abilities you want to print the one with a larger inner diameter so bubbles come out easier, but this means the screw walls will be thinner so I included a 2mm id so the walls will be beefier. For a plunger just use a BBQ skewer, cut the tip so it's not so sharp and long but leave enough of the conical shape. because both plastic and wood will stretch/compress the seal will be good and it will stay in place. <h3>How to print this:</h3> The first thing you should do is just print the threaded part (with maybe a little of the base too) just to make sure the threads are printing solid enough and that the fit will be good. what I usually do is I print 3 versions at once. one at 100% scale, one at 95% and one at 105%. Once you have the 3 just test them one by one until you find the one that fits the best. Then using that scale percentage you just print the whole cup. This is because each printer will have a difference printing tolerance so this is the only way to get a good fit. The threads are going to be close enough such that when you screw it in it will deform the thin walls and make it a perfect fit. I did not need to use an o-ring to make a good seal. If you found this useful, please donate what you think it is worth to my paypal.me. Help cover the time of design. Thanks, Enjoy!