How much clearance/play does your geared extruder have (for example wade)?

How much clearance/play does your geared extruder have (for example wade)?

Mine has like about 5 deg.
Having problems with seams on the print or blobs if i choose the perimeter to start randomly. Now Iam printing at work with a non geared nema17 extruder which doesnt seem to have that problem. I tried turning down the temperature which helped a lot but if I try to print colder it wont extrude amymore. Well my printer prints fairly well but thats something that annoys me :frowning:

i have 90 deg

@Duane_Stuck wtf?

idk

@VolksTrieb clearance as in “backlash”?

Not exactly sure what you are needing, this article might help you describe the issues: http://www.matterhackers.com/articles/extruders-101:-a-crash-course-on-an-essential-component-of-your-3d-printer

@Thomas_Sanladerer ​ after editing and wondering: yes your right xD

@Dave_Gaylord1 thx mate. But nothing in there I didnt know. My theory is that the clearance of the teeth is a factor of blops. The pinion turns while the gear just stands still until it overcomes the clearance. Hope I use the right word for it :smiley:

@VolksTrieb Wade’s can be adjusted to nearly zero backlash - just move the motor in closer. No reason to leave it floppy :wink:

@Thomas_Sanladerer yes i know ^^ already did that from the beginning on. Just redesigned the gears and printing them. Lets wait…

I changed to herringbone gears on my wades and thus eliminated backlash, never looked back.

I was thinking you could put a gt2 belt with aluminum 5mm pulley on the stepper and a 3d printed huge wheel on the drive to get a lot of torque with no backlash.

You’d want to look up the power curve on your stepper/driver to optimize it at the sweet spot regarding the best stepper speed.

I’ve got zero backlash on my belt driven extruder.

@Jeff_DeMaagd
Yes maybe thats just the way I should go :wink: