SoliForum - 3D Printing Community — Problems with ABS feeding once again.

Re: Problems with ABS feeding once again.

2014-01-08T16:18:12Z

The extruder motor is very cool to the touch, so I don't think its' an overheating problem.

gwfami wrote:

Thanks,
I don't believe the extrusion motor is getting too hot, don't have the problem with PLA. Pulled off the heatsink and it looks like it's about 1/2 covered with the white thermal past, and it's screwed on pretty tight. Will get a temperature of the extruder motor next time I run it.
Appreciate the response.
NormanTan wrote:
I had this problem too.
Is your Extrusion motor very hot?!!
If yes, it is the problem.
I had mine partially resolved.
I guess during the production process at SD, a big overlook by the assembly guys. The Heatsink to the extrusion Stepper is not contacting at all. Take a look at the pictures.
Even the thermal paste is not spreading since the heatsink is not contacting the stepper motor. Pls improve.
I had refix it with 3M Thermal Pad. Now the stepper is cool as a baby.
Normal Thermal Paste will do as well. No more missing step on the extrusion stepper.
I hope this helps..
Cheers

Re: Problems with ABS feeding once again.

2014-01-08T12:01:29Z

No problem. I understood. I had been struggling with it for past months too..
Do you try to apply more tension..?
If it skip step after increase tension, I am guessing it's stepper driver calibration. Perhaps a relook at the trimpot at the Stepper driver? I only manage to extrude at 9mm/s speed with success result. Going for E3D soon. But first to test out the Jhead MKV. Brought 2 set, hope they work.

Cheers

gwfami wrote:

Thanks,
I don't believe the extrusion motor is getting too hot, don't have the problem with PLA. Pulled off the heatsink and it looks like it's about 1/2 covered with the white thermal past, and it's screwed on pretty tight. Will get a temperature of the extruder motor next time I run it.
Appreciate the response.
NormanTan wrote:
I had this problem too.
Is your Extrusion motor very hot?!!
If yes, it is the problem.
I had mine partially resolved.
I guess during the production process at SD, a big overlook by the assembly guys. The Heatsink to the extrusion Stepper is not contacting at all. Take a look at the pictures.
Even the thermal paste is not spreading since the heatsink is not contacting the stepper motor. Pls improve.
I had refix it with 3M Thermal Pad. Now the stepper is cool as a baby.
Normal Thermal Paste will do as well. No more missing step on the extrusion stepper.
I hope this helps..
Cheers

Re: Problems with ABS feeding once again.

2014-01-07T19:08:39Z

Thanks,
I don't believe the extrusion motor is getting too hot, don't have the problem with PLA. Pulled off the heatsink and it looks like it's about 1/2 covered with the white thermal past, and it's screwed on pretty tight. Will get a temperature of the extruder motor next time I run it.

Appreciate the response.

NormanTan wrote:

I had this problem too.
Is your Extrusion motor very hot?!!
If yes, it is the problem.
I had mine partially resolved.
I guess during the production process at SD, a big overlook by the assembly guys. The Heatsink to the extrusion Stepper is not contacting at all. Take a look at the pictures.
Even the thermal paste is not spreading since the heatsink is not contacting the stepper motor. Pls improve.
I had refix it with 3M Thermal Pad. Now the stepper is cool as a baby.
Normal Thermal Paste will do as well. No more missing step on the extrusion stepper.
I hope this helps..
Cheers

Re: Problems with ABS feeding once again.

2014-01-06T18:24:39Z

I had this problem too.

Is your Extrusion motor very hot?!!
If yes, it is the problem.

I had mine partially resolved.

I guess during the production process at SD, a big overlook by the assembly guys. The Heatsink to the extrusion Stepper is not contacting at all. Take a look at the pictures.

Even the thermal paste is not spreading since the heatsink is not contacting the stepper motor. Pls improve.

I had refix it with 3M Thermal Pad. Now the stepper is cool as a baby.
Normal Thermal Paste will do as well. No more missing step on the extrusion stepper.

I hope this helps..
Cheers

Re: Problems with ABS feeding once again.

2014-01-01T22:42:06Z

gwfami wrote:

(google wasn't much of a friend here)

A google search for "E3D" returns:

1.) www.e3d-online.com (E3D's site, but they're UK based)
2.) www.filastruder.com/products/all-metal-e3d-hotend (my site, I'm a distributor)

Re: Problems with ABS feeding once again.

2014-01-01T22:15:46Z

http://www.filastruder.com
Tim A.K.A (elmoret) will set you up and customer service is second to none.

Re: Problems with ABS feeding once again.

2014-01-01T22:15:37Z

^^ the link in the sig of the post above yours

http://www.soliforum.com/topic/4415/e3d … stributor/

Re: Problems with ABS feeding once again.

2014-01-01T20:03:22Z

So how much is the E3D and where can I get it? (google wasn't much of a friend here).

elmoret wrote:

gwfami wrote:
I'm running the ABS at 205 and 60 mm/minute.
No signs of blockage.
That's fine. If anything, 205 allowed the threads to deform slightly, creating the gap between the PTFE and brass.
I run MG94 ABS at 150mm/s, 200C through that stock SD hotend. With the E3D I could probably hit 225mm/s.

Re: Problems with ABS feeding once again.

2013-12-31T23:11:36Z

gwfami wrote:

I'm running the ABS at 205 and 60 mm/minute.
No signs of blockage.

That's fine. If anything, 205 allowed the threads to deform slightly, creating the gap between the PTFE and brass.

I run MG94 ABS at 150mm/s, 200C through that stock SD hotend. With the E3D I could probably hit 225mm/s.

Re: Problems with ABS feeding once again.

2013-12-31T22:39:30Z

elmoret wrote:

PLA usually feeds easier than ABS - it gets "thinner" at its melt temp and is easier to force through the nozzle. The following could cause your issues:
- A jam, typically because a gap has formed between the brass barrel and the PTFE liner
- A clog, caused by debris in the nozzle
- Insufficient melt temperature
- Excessive feedrate
What temperature, what feedrate?
E3D is regarded as the best hotend, but I have also put ~40kg of ABS through a stock Solidoodle hot end.

+1
And it most definitely fixes it. Just in case you want the opinion from someone that doesn't sell them.
I like them so much I own three of them and two of them are still in the package.
My bet is on a gap between the brass barrel and the liner.

Re: Problems with ABS feeding once again.

2013-12-31T22:13:42Z

I'm running the ABS at 205 and 60 mm/minute.

No signs of blockage.

Re: Problems with ABS feeding once again.

2013-12-31T21:53:20Z

PLA usually feeds easier than ABS - it gets "thinner" at its melt temp and is easier to force through the nozzle. The following could cause your issues:

- A jam, typically because a gap has formed between the brass barrel and the PTFE liner
- A clog, caused by debris in the nozzle
- Insufficient melt temperature
- Excessive feedrate

What temperature, what feedrate?

E3D is regarded as the best hotend, but I have also put ~40kg of ABS through a stock Solidoodle hot end.

Re: Problems with ABS feeding once again.

2013-12-31T21:48:53Z

So you had the same issue, where ABS wouldn't feed and PLA would? And a new hot end fixed it?

How did it fix it?

Thanks,

GWFAMI

Re: Problems with ABS feeding once again.

2013-12-31T21:00:52Z

That is the point I got to with my stock SD hot end and I finally upgraded to the E3D. Best thing I have ever done for my printer. You can get one from elmoret (filastruder) do it for your sanity

Re: Problems with ABS feeding once again.

2013-12-31T20:42:35Z

Thanks, I appreciate your comments.

I had previously cleaned the drive gear and had started the feed with the tension just tight enough that it would touch the filament, then tightened it as the feed progressed.

I had also completely cleaned the head portion including the peek and made sure that the barrel was tight to it when it was reassembled.