Roomba 675 Blinder Caps

thingiverse

This is a pair of "blinder" caps that fit over the "cliff sensors" on the bottom of the iRobot Roomba 675. The purpose of the caps is to prevent the Roomba from getting "stuck" on surfaces with dramatic color changes that trick it into thinking there is a cliff there. The reasoning and development is outlined in this post: https://blog.aaronbieber.com/2021/04/23/blinding-my-roomba.html PLEASE TAKE NOTE: using these caps will make the Rooma *completely unable* to sense actual cliffs. If your Roomba encounters a step, ledge, or drop-off of any kind, it may drive *right off of it* while wearing these. There are two models, a "regular" cap and a "ramped" cap. You will need three regular caps and one sloped. The sloped cap goes over the cliff sensor nearest to the wall brush, to prevent it from smashing itself on the cap edge constantly while running. See my print settings below, but experiment for your particular printer. the walls are very thin and may require slower speeds or higher resolutions to get right. Once attached, I recommend using tweezers or small fingers to tape these caps *on the vertical surfaces*, that is, inside the outer housing. If you tape them on the bottom surface, they will come off eventually.