Too hot, or filament starving?

[cjdavis618]

Ah, That info helps alot. Thanks gentleman. This likely explains it.

I didn't know that they had changed the printer that much since the original. I did catch the change from the extruder and the steps with it, and even made sure that the steps were the same from my original but I didn't think about the difference in pulley size and ratio. I do have the original 13 tooth metal pulleys on mine (That eats belt pretty hard)

[geneb]

I would strongly recommend that you pick up a new drive gear set. Your belts will fall to their little rubber knees and thank you.

g.

[cjdavis618]

I know your right Gene, everytime I run a long print it looks I am peppering my mashed potatoes.. lol.

I looked on the Seemecnc parts site and don't see any listed. I'll try to look on the wiki site and maybe they have an updated cad file for them and I can just make them.

[Bill Havins]

Here you go: http://seemecnc.com/collections/parts-a ... ley-3-pack

[cjdavis618]

Thanks Mr. Havins,

I looked in the dropdown for the rostock max and didn't see them.

I am making an order now. Besides, I need some new colors.. lol

[cjdavis618]

I wanted to come back and update this post with what I found on my printer.

Regarding the .83 firmware that was printing below 0, it was the firmware and it being set to the 20 tooth pulley instead of the 13 that I had which came with the early kits. (I did take Gene's advice and replace them with the new ones from seemecnc. And my belts are thanking me.. lol)

On the infill, I found my problems were 2 things.
First was a loose belt tension bearing at the top on Y axis.
Second was that the Z axis cheapskates were not tight and had worked loose. It was causing the Z axis to torque the carriage as the head moved from side to side.

So moral of the story:
Check your tower belts for tension. Pull them away from the tower a bit and see if they snap back to straight, if they don't you need to adjust.
Rock your axis carriages side to side on the axis extrusions and make sure there is no play. If it twists at all on the extrusions, tighten your cheapskates.

Those combined were making the infill and top layers look horrible. Where before I couldn't get a decent solid infill or top layer over a 10% honeycomb infill without 6 layers at least, I can do it now in 3 layers and have a glass smooth finish. And did I mention that my prints look a million times better..


Just a couple of examples to compare -
Lovely spool holder and top mount for Rostock. And then a 40mm square, 10% infill, 3mm tall. Just testing surface infill with it. (I know the rod on the top mount spool holder was over extruded a bit, but I ramped up the speed a bit to get it completed.) All of this was with Slic3r 1.0.0RC2
[img]http://i5.photobucket.com/albums/y176/cjdavis618/rostock/83D8455D-C6F0-4EBD-A29F-8E8F0B27C9F5_zpsh7sjwflt.jpg[/img]
[img]http://i5.photobucket.com/albums/y176/cjdavis618/rostock/1DD5388A-E5FC-41C3-89BC-1D6F26342E68_zpslhai5chl.jpg[/img]
[img]http://i5.photobucket.com/albums/y176/cjdavis618/rostock/8835FE0D-C3AA-4FD3-88E5-D6AB1D0A4343_zpsp9veajgh.jpg[/img]

[Eaglezsoar]

Good troubleshooting and good tips for everyone to follow.

[johnstevenjacob]

I agree with Nylocke. It must have something to do with the quality of filament that’s why it turned out that way. I suggest you to try other supplier to see if it’s the real problem. If not, you might have just missed to ensure if the print bed is fully heated. I learned from 3d2print.net that you must have a fully heated print bed to have a good quality print output.

[626Pilot]

I agree with Nylocke. It must have something to do with the quality of filament that’s why it turned out that way. I suggest you to try other supplier to see if it’s the real problem. If not, you might have just missed to ensure if the print bed is fully heated. I learned from 3d2print.net that you must have a fully heated print bed to have a good quality print output.

Except if you print with PLA, in which case a heated bed can be a liability.

[cjdavis618]

The supplier was Seemecnc and ultimately, I thought I got some good prints after I got done adjusting my belts again. Maybe you missed my last posts on this JohnStevenJacob?