Minimum layer time
Hey guys, professional I am working with powder-bed-metal machines and it comes along with a minimum layer time to decrease internal stresses in the printed part. I want to ask wether there is a way to implement that feature in the slicer as well. I printed a lot of PLA and there was no problem with melted material of very small parts. But when I print the same parts with nylon - no chance. My solution was to print four parts instead of only one, in each corner one part. So the first one was cooled down before the nozzle comes along again. Better would be a solution that says: If one layer needs less than x seconds than wait for that time and start printing again. Is that feature possible to implement?
RE: Minimum layer time
Take a look at: Filament Settings, Cooling, Cooling thresholds
You will need to be in Expert mode.
Cheerio,
RE: Minimum layer time
@diem
I will test if that option works for me.
But better would be an option like: "Take a break if layer print time is below x seconds". Do you think that is possible?
RE: Minimum layer time
That is not currently how Prusa slicer does it no. I think Cura uses that method. The PS way is to slow down so that the layer always takes above a certain time. This has the benefit of the nozzle doesn't ooze while its sat there waiting and so filament doesnt get dragged back into the part when it resumes the next layer.
RE: Minimum layer time
One unobvious impact of varying the speed is that the texture and color often varies depending on the speed, and so if some layers are printed at higher speed than others there can be inconsistency in how the resulting surface looks. (I'm not saying that that makes "stand off and wait" a perfect answer, but "slow down" isn't perfect either.)
RE: Minimum layer time
Hi,
I'm trying to print something for my daughter with a small and narrow part. I think there is not enough cooling in between layers when it becomes tall and narrow. I have the setting "Slow down if layer print time is below" set to 15 seconds. But I was watching it during the print, and it certainly didn't throttle the speed down to 15 secs/layer - it really went quite fast, and as you can see, the plastic didn't have time to cool and just spiralled out of controlled. I sanded it back for my daughter so not as obvious in the photo, but still very visible, but was wondering why it didn't slow down the print time and is there another solution for this??
I am printing on a MK3S+, using prusaslicer, and printed with esun silk PLA. Sorry very new to this 3d printing thing (that was my third thing I printed!), so any advice greatly appreciated.
Thanks in advance!
RE: Minimum layer time
the only solution I found was to print a small block in the same height in one corner. So the printer needs some time for the way and during this time the plastic can cool down a little bit. I don't know why there isn't an option yet.
RE: Minimum layer time
Make sure you redownloaded the .gcode, otherwise it will not change anything.
RE: Minimum layer time
the only solution I found was to print a small block in the same height in one corner. So the printer needs some time for the way and during this time the plastic can cool down a little bit. I don't know why there isn't an option yet.
I don't suppose there is a built-in alternative yet?
I'm having the same problem - a huge print where the very top is VERY small. The "slow down when it's too fast" is doing the exact opposite of what I want - it makes sure the top is a molten mess, looking like a malformed appendix instead of a sharp point...
RE: Minimum layer time
Have you (or anyone else) found a solution or workaround for this that doesn't include adding extra geometry? I'm having this exact issue--the slower speed is creating a blobby mess of the top layers where my print is very thin.