1

Topic: Supports stringing off model

Any ideas what causes this?

http://imgur.com/dIZgCtT

Slic3r Da Vinci 1.0a .32 layer width (after lots of failed prints this is all I can get to work successfully)
ABS
Extruder 250
Bed 100
Cooling disabled
Rectilinear grid supports

2

Re: Supports stringing off model

Looks like you need cooling on. Hard to see but it looks like the support is falling in on itself

Sd4 #9080 with a glass bed. E3d chimera duel extruder. Paste extruder , duet wifi.
Lawsy carriages. linear bearings. Y axis direct drive, Kinect scanner
SD4#8188 glass bed, lawsly carriages, E3d v6, octoprint http://www.ustream.tv/channel/hotrod96z28
Filastruder/filawinder, Custom Delta 300mm x 600mm

3

Re: Supports stringing off model

Pretty much , starts ok but at the mid point the layers become birdnesty and it fails.

Any suggestions around settings for the Cooling in Slic3r?

4

Re: Supports stringing off model

I'm not sure.  I only have an sd4. Only print abs. I have a blower fan running full all the time pointed at the print

Sd4 #9080 with a glass bed. E3d chimera duel extruder. Paste extruder , duet wifi.
Lawsy carriages. linear bearings. Y axis direct drive, Kinect scanner
SD4#8188 glass bed, lawsly carriages, E3d v6, octoprint http://www.ustream.tv/channel/hotrod96z28
Filastruder/filawinder, Custom Delta 300mm x 600mm

5

Re: Supports stringing off model

And i don't know davincis  bit 250 seems kinda hot for abs

Sd4 #9080 with a glass bed. E3d chimera duel extruder. Paste extruder , duet wifi.
Lawsy carriages. linear bearings. Y axis direct drive, Kinect scanner
SD4#8188 glass bed, lawsly carriages, E3d v6, octoprint http://www.ustream.tv/channel/hotrod96z28
Filastruder/filawinder, Custom Delta 300mm x 600mm

6 (edited by VampireV 2016-08-25 03:51:59)

Re: Supports stringing off model

Update. Figure if I sort this out it will be the solution with the supports too

http://imgur.com/pGOtXDf

These are supposed to be smooth sabre tooth tiger teeth.

From left to right the only changes have been cooling

100%. I've always on Automatic Off

Slic3r .32 layer heights
Abs
Da Vinci 1.0a firmware flashed with repetitive
Extruder 230
Bed 100
3 top and bottom layers

7

Re: Supports stringing off model

Those teeth defenitly need better cooling

Sd4 #9080 with a glass bed. E3d chimera duel extruder. Paste extruder , duet wifi.
Lawsy carriages. linear bearings. Y axis direct drive, Kinect scanner
SD4#8188 glass bed, lawsly carriages, E3d v6, octoprint http://www.ustream.tv/channel/hotrod96z28
Filastruder/filawinder, Custom Delta 300mm x 600mm

8

Re: Supports stringing off model

Turned cooling to full, took heat down to 210 still doing it sad

9

Re: Supports stringing off model

Slow the feed rate down.  The layers don't have enough time to cool before it starts laying down the next one

Sd4 #9080 with a glass bed. E3d chimera duel extruder. Paste extruder , duet wifi.
Lawsy carriages. linear bearings. Y axis direct drive, Kinect scanner
SD4#8188 glass bed, lawsly carriages, E3d v6, octoprint http://www.ustream.tv/channel/hotrod96z28
Filastruder/filawinder, Custom Delta 300mm x 600mm

10

Re: Supports stringing off model

Roger that, I was trying to find the specific setting in slic3r and went from 80mm/s to 50 mm/s and still same issue

The only other thing I can think of is maybe the infill is too low (5%) ill try a 100% on it to see if i get same results then work backwards.

11

Re: Supports stringing off model

Print a tall skirt along with it.

Sd4 #9080 with a glass bed. E3d chimera duel extruder. Paste extruder , duet wifi.
Lawsy carriages. linear bearings. Y axis direct drive, Kinect scanner
SD4#8188 glass bed, lawsly carriages, E3d v6, octoprint http://www.ustream.tv/channel/hotrod96z28
Filastruder/filawinder, Custom Delta 300mm x 600mm

12 (edited by carl_m1968 2016-08-26 01:06:04)

Re: Supports stringing off model

50mm per second is too fast for a Da Vinci. Their default for fast printing is 40mm per second. Medium and fine are even slower. The Da Vinci is not a fast machine and should not be run over 40mm per second without a different hot end design.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

13 (edited by VampireV 2016-08-26 03:04:23)

Re: Supports stringing off model

Thank you. I'll change to 30ms and test

Update:

http://imgur.com/a/WtZLl

All settings at 30 mm/s still occurring sad
Cooling @ 100%

Foudn the setting in cooling to set layer time minimum from 5 - 30.

Print time now gone from 45 mins to 1:45..... fingers crossed.

14 (edited by VampireV 2016-08-26 07:59:23)

Re: Supports stringing off model

Same deal and twice the wait sad

http://imgur.com/a/IpXtP

Cooling set to Auto and minimum layer time 30 seconds

EDIT

I didn't read the settings correctly, Setting the speed required all other settings to be 0 (Which I didn't do the first time)

Trying again @ 30 mm/s now with 100% cooling (except first 5 layers)

If that fails ill try 10mm/s

EDIT EDIT

So, 30 mm/s failed (but probably best print so far)

trying 10 now (2 1/2 hour print for a 5 cm tooth...) If that still fails I can focus my attention elsewhere..

15

Re: Supports stringing off model

So 10 worked ( still not 100% but best so far) but was so painfully slow.

Apart from the support issues of late I was previously able to print without issues at a decent speed.

Hrmm I'm so lost sad

16

Re: Supports stringing off model

The issue with 3d printing on a whole it that every part, and every spool of filament requires different settings. Yes you can get a ballpark setting but it will still need to be tweaked for every part. It all depends on geometry. Larger parts can be printed faster but small parts need to be printed slower and often times requires them to be printed in multiples or print something else on the bed at the same times. The trick is to allow time for each layer to cool before the next so that sometimes requires something else to be printed so the hotend moves away from the smaller part for a while. Getting the settings right for each print is the hardest and most troublesome part of this hobby.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

17

Re: Supports stringing off model

Thank you smile

Additionally I had someone else reply to suggest setting the support distance from default 2.15 to 2 or even 1.5

Now I know re smaller parts too so I have a few ballpark settings saved now.

fingers crossed.

18 (edited by VampireV 2016-08-30 01:22:42)

Re: Supports stringing off model

Looks like support distance can only be set to 0 or 2 in Slic3r sad

I did a test print of 4 cylinders

20mm 15mm 10mm and 5mm

all 30mm height and came out perfect,

I then tried 5, 4, 3 and 2 which all failed / were jaggy.

This does appear to point to the speed being the issue as 5 worked when paired with 20,15 and 10.

I might try print a bunch of 3 and 2's and see what happens.

Worked without issue, looks like I finally have my settings. (touch wood)