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PLA sticks to almost everything when it is melted. Particularly to metals like brass and steel. Even when you polish the metal carefully, it becomes a problem. All metal hot ends like the e3dv6 hotend works very poorly with PLA and it gets jammed all the time but it works great for ABS.
Teflon (aka PTFE) is great because PLA doesn't stick much to teflon. Doesn't stick at all really. But teflon doesn't do well above 200C - it degrades "quickly" (over many hundreds of hours - maybe 500 hours failure if teflon reaches 250C). When teflon degrades it becomes more soft and more rubbery.
The peek helps hold the teflon and also insulates the teflon so the teflon doesn't get too hot. Only a small part of the teflon gets hot - that small area at the bottom. If that area becomes week it is okay as the peek holds the teflon firmly without degrading.
You could instead maybe use wood. You want a material that can withstand 250C for months. And is stiff and strong (as strong as any typical plastic like PLA, ABS but at 250C). But most important (and difficult to find) it needs to be somewhat insulative. It must not conduct heat very well.
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S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
(Sorry, was out of office when this released)
This update is for...
All UltiMaker S series
New features
Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
A year after the merger of Ultimaker and MakerBotQQ, we have unlocked the ability for users of our Method series printers to slice files using UltiMaker Cura. As of this release, users can find profiles for our Method and Method XL printers, as well as material profiles for ABS-R, ABS-CF, and RapidRinse. Meaning it’s now possible to use either Cura or the existing cloud-slicing software CloudPrint when printing with these printers or materials
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gr5 2,094
PLA sticks to almost everything when it is melted. Particularly to metals like brass and steel. Even when you polish the metal carefully, it becomes a problem. All metal hot ends like the e3dv6 hotend works very poorly with PLA and it gets jammed all the time but it works great for ABS.
Teflon (aka PTFE) is great because PLA doesn't stick much to teflon. Doesn't stick at all really. But teflon doesn't do well above 200C - it degrades "quickly" (over many hundreds of hours - maybe 500 hours failure if teflon reaches 250C). When teflon degrades it becomes more soft and more rubbery.
The peek helps hold the teflon and also insulates the teflon so the teflon doesn't get too hot. Only a small part of the teflon gets hot - that small area at the bottom. If that area becomes week it is okay as the peek holds the teflon firmly without degrading.
You could instead maybe use wood. You want a material that can withstand 250C for months. And is stiff and strong (as strong as any typical plastic like PLA, ABS but at 250C). But most important (and difficult to find) it needs to be somewhat insulative. It must not conduct heat very well.
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