SoliForum - 3D Printing Community — What causes this?

Re: What causes this?

null@example.com (n2ri) — Sun, 06 Dec 2015 22:17:57 +0000

buy an air boat Ward, they go good on ice and snow too hehe

Re: What causes this?

null@example.com (heartless) — Sat, 05 Dec 2015 23:22:43 +0000

wardjr wrote:

Rub it in why don't ya!!! I'd rather be boating than shoveling.

LOL that was kind of my thought as well - except not exactly shoveling here... supposed to be in the 40's for the next week or so

Re: What causes this?

null@example.com (wardjr) — Sat, 05 Dec 2015 17:16:20 +0000

Rub it in why don't ya!!! I'd rather be boating than shoveling.

Re: What causes this?

null@example.com (Ski52) — Sat, 05 Dec 2015 15:53:33 +0000

Guess I was over-extruding just a bit! My calibration box should have sides of 0.42mm - mine were 0.92! Just a bit out of whack. Got them back to 0.42/0.41/0.42/0.42 - a little better.

I may try that print later - have to go cut grass now. A lot of you are shoveling snow - we're cutting grass - it's 72 here and its not noon yet!

Ski

Re: What causes this?

null@example.com (Ski52) — Sat, 05 Dec 2015 14:22:00 +0000

Soon as I get both eyes open, I'll recalibrate and check. Bearings seem OK. Visually, everything looks OK. Just recently re-lubed all the shafts with a rag dampened with 3 in 1, same stuff I've used for 2 years.

Back after a few.

Ski

I wonder if I let it go, how far it would have rotated?

Re: What causes this?

null@example.com (n2ri) — Sat, 05 Dec 2015 05:30:37 +0000

AZERATE wrote:

I agree with wardjr as well.
As an added note, by looking at your first pic and your signature, you have linear bearings and are over extruding. In the first image, the is not only a shift with blobbing, but there also seems to be a twisting pattern when viewed from the top.
You may want to confirm your bearings have not popped out of place (looks to be) on one side. This is easy to confirm, and fairly easy to fix.

or something is snagging carriage while printing like filament on fan or something or lube is drying out/dirty after lots of use.

Re: What causes this?

null@example.com (AZERATE) — Sat, 05 Dec 2015 03:04:28 +0000

I agree with wardjr as well.

As an added note, by looking at your first pic and your signature, you have linear bearings and are over extruding. In the first image, the is not only a shift with blobbing, but there also seems to be a twisting pattern when viewed from the top.
You may want to confirm your bearings have not popped out of place (looks to be) on one side. This is easy to confirm, and fairly easy to fix.

Re: What causes this?

null@example.com (heartless) — Sat, 05 Dec 2015 02:57:44 +0000

Looks like some heavy over extrusion. Probably should recalibrate for that roll.

Even the same color form the same vendor will be different and requires you to calibrate each roll change..

^^ this times 10

Re: What causes this?

null@example.com (carl_m1968) — Sat, 05 Dec 2015 01:58:47 +0000

As Ward said every roll is different. Even the same color form the same vendor will be different and requires you to calibrate each roll change..

Re: What causes this?

null@example.com (wardjr) — Sat, 05 Dec 2015 01:36:00 +0000

Looks like some heavy over extrusion. Probably should recalibrate for that roll.

What causes this?

null@example.com (Ski52) — Fri, 04 Dec 2015 23:59:28 +0000

Been printing a lot of little trinkets for the Holidays - alls been well. Tried printing something different and this happened. Was using a new roll of ABS @215/95.

Top view. Each layer seems OK.

Side view. The whole works is twisting CCW
In the front view, everything appears square... WTF has gone out of whack now?

Ski