Hey guys, could you please help me out. I have a cube 2nd gen trying to use bulk hack with makerbot pla 1.75mm. The problem is that half way through printing, the filament starts to get stripped by the gear. If i loosen the gear, then the black and white stripped gear stops spinning because it cant grip the filament. I know its trial and error but can someone pls tell me how to set the correct tension of it using a spanner (e.g. place the filament first and then put the bolt on) Pls help guys. It would be much appreciate. Cheers !
The steps I did:
1. Disassembled the print head.
2. Very slightly filed down the triangular notch that the pulley rests against to allow it to move
very slightly further from the gear.
3. Re-assembled the print head with a fresh piece of matterhackers PLA inserted between the gear and pulley when tightening the 7mm nut.
I'm not sure #2 was actually necessary. #3 made a big difference as on my first attempt I tightened the nut without a piece of PLA in place and there results weren't good. Since doing those things, I've ran probably 40 hours of printing on it using matterhackers PLA in 3 different colors with zero feed problems!
The only problem I have now is sometimes the object will come unstuck from the print plate before it's finished printing, but I'm not sure what can be done to ever make that 100%. Applying CubeStick seems more of an art than a science.