Channel

thingiverse

This is customizable channel based on the FTC part. There is a .txt file that you can download(copy-past is funky in Thingiverse). All you need to do is change the two values in the parenthesis in "channel1(5,2):". The first value dictates how meany holes the channel should have. The second value controls how much distance there is between the top of the circle to the edge of the channel. Also if you want to have a version that does not have the alternating hole design then instead of "channel1" do "channel". I am open to suggestions.