PLA curling up on angled objects. July 29, 2014 01:41AM |
Registered: 10 years ago Posts: 29 |
Re: PLA curling up on angled objects. July 29, 2014 06:23AM |
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Re: PLA curling up on angled objects. July 29, 2014 11:18AM |
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Re: PLA curling up on angled objects. August 04, 2014 06:47PM |
Registered: 9 years ago Posts: 189 |
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nophead: Yes the height doesn't affect the stretching if you keep the width constant because lower heights get proportionally lower flow. It is the width that counts. SF is better than SFACT and I think Slice3r because it relates the width to the height. If W/T is constant then thinner layers does stretch it more. 0.35 width is very thin for ABS and a 0.35 nozzle. If you measure the plastic extruded into free air it will be substantially bigger diameter than the nozzle, maybe 0.45. That is before you squash it flat by having the layer height lower than the width. Typically I would use 0.30 layers with a 0.35 nozzle with W/T of 1.5 giving a width of 0.45. Or 0.35 layers giving 0.525 for even less stretch. The most stretch I would use would be 0.25 layers with a width of 0.375, still more than yours. For lower layer heights I would increase W/T, so W would never be less than 0.375.
Re: PLA curling up on angled objects. August 05, 2014 01:55PM |
Registered: 9 years ago Posts: 56 |
Re: PLA curling up on angled objects. August 05, 2014 04:56PM |
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Re: PLA curling up on angled objects. August 05, 2014 06:36PM |
Registered: 9 years ago Posts: 56 |
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victorjung
you could also try to swich your heated bed off. even after the first layers if you need it to stick at the begining.
Re: PLA curling up on angled objects. August 08, 2014 09:51PM |
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Re: PLA curling up on angled objects. August 09, 2014 12:10AM |
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Re: PLA curling up on angled objects. August 09, 2014 07:37PM |
Registered: 10 years ago Posts: 29 |
Re: PLA curling up on angled objects. August 11, 2014 03:57AM |
Registered: 9 years ago Posts: 56 |
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ttttrigg3r
Thanks yall. Took your advice and went back to no heat+blue tape+hairspray. Works like a charm, Not perfect but pretty well.
DinoK nice Delta printer, is it pretty straight forward to build one of those? I want to build one. I really like the Prusa i3 because it's very popular and well documented. What model do you recommend when it comes to Delta printer.
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ttttrigg3r
Also I have a question about your 80mm fan. It just sits there stationary blowing at the bottom layers of the bed right? Is there a thread for that? Will that not cause temperature fluctuation issues with your hotend if it hits your hotend directly?
Re: PLA curling up on angled objects. August 17, 2014 06:23PM |
Registered: 9 years ago Posts: 189 |
Re: PLA curling up on angled objects. August 17, 2014 06:37PM |
Registered: 10 years ago Posts: 790 |
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MrDoctorDIV
Fan fan fan. Most common [not sure how you haven't seen that yet, but everybody's experience is different] and simplest and typically the most effective fix. You need a fan blowing under/around the nozzle so that the plastic cools as quickly as possible once it leaves the nozzle.
Just a few examples.
Re: PLA curling up on angled objects. August 17, 2014 08:43PM |
Registered: 9 years ago Posts: 189 |