#flintfeeder #bicgear low cost and fantastic grip… we can use Bic gear on any other feeder macanism I take shauki’s flint… one my suggest find position of Bic gear and lock it using superglue on shaft… real soft pass need only for remove slip and move down if make too much pressure on it… this are my 6th type of gear used mounted is a best for this price. Smokers fear… 3d printers makers take all your lighter!
For prevent it I put glue before on small stick and pass near ends of Bic spring
Sorry for tag…correct it
@Mauro_Manco nice! Going a bit off topic here but it seems you might have some over extrusion going on there judging by the look of those top infills.
@korpx …plastic part of flint feeder are printed via #takerbot X2 = no correct size and not perfect infill 
(possible I don’t remove all support too)
Absurd we Bic lighter are made in China.
I’m still struggling to make it work (3rd lighter now), but I shall succeed… The idea is fantastic but you really need to glue it to the stepper motor shaft. I would probably recommend epoxy over superglue. The superglue is much more fluid and had some that has overflown on top of the “teeth” rendering the device useless. I had to heat it to remove it. Found that epoxy is easier to apply and more manageable (until you need to remove it at least). It’s probably also a good idea to have the main direction of pulling making the spiral of the lighter to tighten around the shaft and not the other around (I destroyed my first set like this, as the part is quite brittle. I guess that with the glue, this is becoming a non-issue). I’m also trying to come with an original design for the extruder itself. You can take a peek here, but it’s not tested yet:
Thanks, still need to work out some details. Let you know when it’s ready for prime time…
michael …need good patient and nice nails 
but softly open spire by spire it enter good… as you think glue can cover for this i use a stick and use superglue and no epoxy only because is more simple to remove and more simple to find.