Alternate materials for my Afinia

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LonV
Posts:220
Joined:Thu Nov 15, 2012 11:53 pm
Location:Phoenix, Arizona, USA
Alternate materials for my Afinia

Post by LonV » Wed Dec 18, 2013 12:43 am

Hey all,

So I for the life of me can't get any material other than ABS to print in my Afinia (Up! Plus). Where others have had successes with Colorfabb or Taulman T-Glase, I can't get any of this stuff to work. Basically, what happens is one of two things:

1) It make skipping sounds (like it's having trouble feeding filament) and eventually stops feeding. I've tried the entire range of temps...hotter, colder...nothing works.
2) It just silently stops feeding.

I know the printer is finicky in this area, but I don't have any successes. Is it possible that there's something else going on here? It occurred to me today that maybe the feeder gear is gripping too tightly or not tightly enough. I'm just not sure there's a way for me to adjust that like there is on my Reprap.

Any ideas are welcome.

Thanks!

roller
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Joined:Sat Oct 06, 2012 9:09 pm
Location:Brisbane, Australia

Re: Alternate materials for my Afinia

Post by roller » Wed Dec 18, 2013 6:32 am

So you have a temp mod? If so what temps are you trying?

I use Colorfabb and it's great but haven't managed to convince myself to spend money on T-Glase yet (but I seriously want to!!!). I print it on about 220C from memory but I don't know for sure as I'm not home and I write the temps on the side of the reels.

One thing with PLA is once you print it too cold (like using the PLA setting) it will strip and fill up the gear with shredded PLA ... then future PLA has a problem printing. So pull off your enxtruder cover and clean out the feed gear.

LonV
Posts:220
Joined:Thu Nov 15, 2012 11:53 pm
Location:Phoenix, Arizona, USA

Re: Alternate materials for my Afinia

Post by LonV » Wed Dec 18, 2013 6:47 am

Temp mod...and I've tried very cool (like 190) all the way up to stock. Colorfabb tends to cause the gears to stutter (all temp ranges). T-glase just stops feeding silently...unless I go very low temp and it'll stutter. I assumed it was caused by its oblong nature, but even a new roll hasn't helped.

Occasionally I'll get 1 good print out of Colorfabb, but the next one will definitely fail.

I will look at the extruded gear. Thanks for the tip.

roller
Posts:1622
Joined:Sat Oct 06, 2012 9:09 pm
Location:Brisbane, Australia

Re: Alternate materials for my Afinia

Post by roller » Wed Dec 18, 2013 9:42 am

Just in case you are printing after you use ABS don't forget to load and prime the head with quite a few extrudes at the higher temp until you get rid of all the ABS from the print head. I know I'm stating the obvious but enthusiasm can make us all forget the obvious sometimes. Plus if you do forget you can quickly find it too late ie PLA stripped and in the gear and the end of the filament flattened and bent by the heat.

Also try printing with PLA with a cool printer. Some Up printers run the extruder motor hotter than others and the extra heat can soften the filament and cause a jam. Maybe you could show us the end of the filament when you retract it after a jam. Also consider pulling apart the extruder while it is jammed to see what happened.

LonV
Posts:220
Joined:Thu Nov 15, 2012 11:53 pm
Location:Phoenix, Arizona, USA

Re: Alternate materials for my Afinia

Post by LonV » Wed Dec 18, 2013 11:11 pm

So, I exposed the extruder gear and while there was definitely some stuff on it, I wouldn't say it was clogged up. Regardless, I went ahead and cleaned everything there.

I tried some Colorfabb Woodfill (something I know another Afinia user is able to use) and same results...it just stops feeding. (Note: I immediately loaded some ABS {from a new manufacturer that I've never used before} and it worked flawlessly.)

However, looking at the material after retracting, it doesn't appear to grip the material very deeply. There's definitely a divot where it spun in place, but the groves where the gears go are very shallow. How deep should they be? Is there a way to increase tension?

Thanks,

Lon

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DrewPetitclerc
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Location:Silicon Valley California
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Re: Alternate materials for my Afinia

Post by DrewPetitclerc » Thu Dec 19, 2013 4:38 pm

This will solve the problem.
http://pp3dp.com/forum/viewtopic.php?f= ... f741#p5473
http://pp3dp.com/forum/viewtopic.php?f= ... f741#p5474
Over nine UP Plus machines have my mod and have been unafraid to use any brand/material of filament.
Regards
Drew
Drew Petitclerc
Petitclerc Designs
Owner/Senior Principal Designer, prototype, tooling and test equipment design and 3D printing
http://flash-graphics.deviantart.com/
http://www.thingiverse.com/DrewPetitclerc

LonV
Posts:220
Joined:Thu Nov 15, 2012 11:53 pm
Location:Phoenix, Arizona, USA

Re: Alternate materials for my Afinia

Post by LonV » Thu Dec 19, 2013 8:54 pm

Thanks Drew, although I think that's a big above my skill set. :D

Christina
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Re: Alternate materials for my Afinia

Post by Christina » Fri Dec 20, 2013 4:58 pm

DrewPetitclerc wrote:This will solve the problem.
http://pp3dp.com/forum/viewtopic.php?f= ... f741#p5473
http://pp3dp.com/forum/viewtopic.php?f= ... f741#p5474
Over nine UP Plus machines have my mod and have been unafraid to use any brand/material of filament.
Regards
Drew
Those are some amazing mods. But I'm too scared to do that to my only printer.

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DrewPetitclerc
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Location:Silicon Valley California
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Re: Alternate materials for my Afinia

Post by DrewPetitclerc » Fri Dec 20, 2013 5:42 pm

Christina wrote: Those are some amazing mods. But I'm too scared to do that to my only printer.
All my mods are reversible if you want it back the way it was.
Regards
Drew
Drew Petitclerc
Petitclerc Designs
Owner/Senior Principal Designer, prototype, tooling and test equipment design and 3D printing
http://flash-graphics.deviantart.com/
http://www.thingiverse.com/DrewPetitclerc

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