Prusa i3v gear slipping off Extruder motor

[TehStranger]

Hey guys. Recently my printer stopped extruding filament and I noticed that the extruder motor was spinning but the gear was still. I put on the spare gear I printed and it was working perfect but after 3 prints the same thing happened

I tried tightening the grub screw but it is incredibly loose and just wiggles around, it was like this on the original gear aswell.

Any response would be greatly appreciated. Thanks!

[jaguarking11]

Am a right to assume you have some sort of wades extruder? Also I assume you have those parts in pla? Your motor may be getting hot enough to distort the plastic. You have a few options there. Convert it to a belt drive using a 16tooth alu pulley and a printed gear for the other end. Should give you a more durable piece that way.

[TehStranger]

Am a right to assume you have some sort of wades extruder? Also I assume you have those parts in pla? Your motor may be getting hot enough to distort the plastic. You have a few options there. Convert it to a belt drive using a 16tooth alu pulley and a printed gear for the other end. Should give you a more durable piece that way.

I do have a Wades extruder and I'm pretty sure its printed with ABS (the original parts anyway), I am still using those original parts but I printed to gear in PLA. I don't think heat is an issue because I think the original ABS gear wouldn't of warped if that were.

[jaguarking11]

How about this one? Should be more durable as well. https://www.thingiverse.com/thing:185269

[TehStranger]

How about this one? Should be more durable as well. https://www.thingiverse.com/thing:185269

Should be compatible with the Vslot extrusion yeah?

[jaguarking11]

Just like anything in this world. You may need to modify the design a bit. Should not be that difficult. Are you using a bowden setup?

[Roxy]

How about this one? Should be more durable as well. https://www.thingiverse.com/thing:185269

I don't have time to do this right now. But this makes a lot of sense for my printer.

[TehStranger]

I don't have time to do this right now. But this makes a lot of sense for my printer.

just out of curiosity, what printer do you have?

[jaguarking11]

I don't have time to do this right now. But this makes a lot of sense for my printer.

I was thinking the same honestly. The direct drive extruder I am using is severely heating up the motor, I have not put a probe to it, but I suspect 50-60c by feel. Anything after 50mm/s its being very overworked. However I am a bit reluctant to buy a new pulley and a bunch of parts that total 20-30usd. I dug up some old printer gears that I am slowly modifying for this purpose. They should be better than a printed gear in every way. The parts I am slowly designing and printing all me to use a spare gt2 2T pulley to hold the main gear. The other gear will use a bolt that I will need to rework. The bolt is 4.75mm and I will use the stainless drive gear on it which is 5mm. It will ride on 5mm ball bearings I pulled from an old HDD.

I plan on posting some pics on this build. Nothing fits as designed. I have to file grind and build parts for it. I will however use very thick walls on the body so it holds its shape. I have yet to decide if I use 100% infill or 50% infill with 1.5mm walls. I had luck with 1.2mm wall and 50% infill last night for the main portion.

As for time, I feel your pain. My wife has already started to call my printer the girlfriend.

[TehStranger]

I might go with this one http://www.thingiverse.com/thing:389105 http://www.thingiverse.com/thing:97657 do you think printing the pulley will be ok or should I get a metal one?
What you think?