I fricken hate support!!!  or the removing of.

3D Printing
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1

I fricken hate support!!! or the removing of.

2

Can’t even remove it without destroying the part

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If you’re using slic3r. In the advanced section, reduce the extrusion width for supports to 75% then try again. Keep reducing it till the supports starts getting patchy then push it up by 5%

4

I will try that, i didn’t actually know how to operate it. Any hints for Cura?

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Haven’t used Cura in a while. In general if your supports aren’t easy to remove you are over extruding or running too hot.

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Thanks for the tip i will play with that.

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What nozzle diameter do you use? In my experience with an 0.2mm Nozzle the support of ABS prints (using Slic3r defaults) can mostly be scrapped of with a fingernail.

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With Cura you can change the extrusion for supports in the expert settings.

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I happened to figure that out about hour ago. It was set at 15. I tried 5 but it was to low so i am not printing at 10. We will see how things come apart here in a while. One thing i didn’t see in Cura was a Z lift, is there one there?

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not sure what z lift is exactly. but maybe the “cool head lift” setting in Cura is what your after? It lifts the nozzle when the print area is quite small to make sure it wont be exposed to too much heat.

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Thing is, as far as supports go, ABS is much easier to remove. When thin enough it tends to just break off. I’ve had formulations of PLA that even at the tiniest of intersections, would just refuse to detach. So the material you’re using also determines how easy support material is to remove.

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Black ABS. I changer the support fill amount setting in Cura from 15 to 10, lowered the extrusion multiplier a few points and lowered the temp from 205 to 200.
Now in the name of researcher this is not a good strategy. Usually one thing at a time, but all that printing time…
One or more of the things i changed help immensely with the support coming off. I think the temp was a big factor as the support is not fused to the part as before. It is only stuck at the contact points. With these rustles it looks like i may have a future with using support.
@Bjorn_Marl .4 nozzle
@Tim_Rastall Your lowering the temp suggestion i thing was one of the biggest factors of the support coming off, Thanks

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I have been doing dual extrusion prints with HIPS as breakaway support. Detaches really nicely!

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It just peals off?

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Yup. ABS and HIPS will fuse to each other, but at reduced strength compared to how each fuses to its own. They both shrink, and I have had a few cases where the different shrink rate or direction caused the part to separate from the supports mid print; but generally, they stay together well until it is time to break it off.
I hope you won’t mind the plug: We sell HIPS at Toybuilderlabs.com.

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Naw its OK for me or else i might not have know about it. I would like to try this if i had a duel extruder bot. Its on my list.

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See https://www.youtube.com/watch?v=yRAqkknlPdw for example.

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Thanks

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With the Slic3r 0.9.10b, I was getting really good support separation with ABS using the following settings:

pattern: Rectilinear grid
Pattern spacing: 4
interface layers: 20
interface spacing: 2
support extrusion width (in advanced): .5mm

So far, I’ve had nothing but crap with Slic3r’s new support algorithm. It broke the grid interface which was the key to clean surfaces and releasing easily, and it also puts support too close to vertical surfaces so that it won’t detach there either.

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@Whosa_whatsis Thanks you are always a wealth of information.