Thetford Toilet Blade #50731

thingiverse

My Thetford cassette broke and I tracked it down to this part which had broken. I had several attempts at getting a good replacement part made up. I printed with 3 shells, 20% infill (but it should not need it), roof and floor thickness is 1mm. The 4 x 10mm towers around the part are to slow down the print so that the important center piece is printed without too much warp. It might not be as important for PLA print but I use ABS. UPDATED: I found that alcohol influenced usage equaled breakage. The weak point being the tower to the big disc point. So I made some modifications to the design ... v6. I also recommend 100% infill if you can manage it without warping:) and go as slow as possible I dropped it down to 0.35x on sailfish. New design certainly feels stronger. Lets see how long this one lasts. I'm printing a spare and will pop a picture up soon.