SoliForum - 3D Printing Community — Layer seperation

Re: Layer seperation

null@example.com (rcav8r) — Thu, 22 May 2014 18:30:31 +0000

Well issue ended up being Slic3r, so it appears so far. I upgraded to the latest stable (1.0.1) and those were the 1st prints with the new version. Went back to 0.9.9 and all is well. Not sure what in there changed, but something did.

Re: Layer seperation

null@example.com (rcav8r) — Wed, 21 May 2014 21:08:28 +0000

THANKS. I will double check my settings when I get home, and adjust accordingly, if needed.

Re: Layer seperation

null@example.com (grob) — Wed, 21 May 2014 03:08:28 +0000

That part should be ok, but long thin things are susceptible to this kind of trouble. 2 walls / 25% should be well in.

First step would be more squish - increased wall thickness relative to nozzle diameter and layer height. Increase your wall thickness in slic3r to at least 0.50mm (1.2-1.5x nozzle diameter, which is usually 0.40mm on newer SD's), and don't use a layer height over 0.30mm. You may want to do a single-wall calibration to check you're getting what you set, usually if you're dialed in with one wall thickness, changing this setting works pretty well.

Make sure your SD is enclosed, and you let it warm up well before starting the print - higher ambient temps help reduce the warping forces, which can be surprisingly annoying with ABS!

Also maybe try increasing extrusion temperature by 5-10 C, this often promotes better adhesion (but be cautious, as going too high will cause re-melt, squidgy corners, increases the risk of clogs, and may even increase the problem as the dT is larger from application to cool...).

Layer seperation

null@example.com (rcav8r) — Tue, 20 May 2014 13:41:48 +0000

Hi All; Having some problems with layer separation.
In the 2 images you can see some of the layers separating.
The part that is broken apart came apart rather easily. The part that separated is 1/4" and broke off the base with almost no effort.
Part has 2 shells, and 25% honeycomb infill.
Material is ABS.

Any ideas on how to improve?
THANKS in advance