Elephantfoot compensation vs. SL1 speed
Hi,
i am printing some parts direct on the build plate without supports on my SL1 speed. I now, since i upgraded my SL1 to SL1 speed, experience a big "elephant foot" on my parts. I am using the same elephant foot compensation in prusa slicer since ever (0.2mm/0.2mm). Even when i reduce the first layer time (now 20s tried 15s) this is still present, i thing due to more light spilling/intens of the SL1 speed
What i can see that in prusaslicer (now 2.5.0) that "only" the first layer will be elephant foot corrected the following layers not.
Is this intensional or a possible bug (e.g. correct the 10 fist layers with a transition ramp, like it is for the time)?
Thank you
Torsten
RE: Elephantfoot compensation vs. SL1 speed
Hello there.
I have the exact same issue. I made the upgrade to the SL1S and experience a massive elephant foot when printing directly on the print bed. I use the standard settings for the SL1S.
RE: Elephantfoot compensation vs. SL1 speed
For some reason though my elephant foot does not appear on the first layer. It appears as a slope a few layers after the first layer.
Hello there.
I have the exact same issue. I made the upgrade to the SL1S and experience a massive elephant foot when printing directly on the print bed. I use the standard settings for the SL1S.
RE:
I too am having this issue (but with a stock SL1S not an upgraded SL1), it prevents me from printing geometric objects or anything with tight tolerances directly on the build plate 😓
I was trying to print a planetary bearing gear model and the bottom layer has so much squish that the inner gears fused to the outer shell
(stock)
- Powder-coated, Satin, & Garolite Sheets
- 0.25/0.4/0.5/0.6/0.8mm NozzleX
- 0.6mm Bondtech CHT
_____SL1S & CW1S (stock)
RE: Elephantfoot compensation vs. SL1 speed
Here are some photos of the print described above
TOP (facing away from build plate):
BOTTOM (directly touching build plate):
SIDE (right side is the surface that touches the build plate):
As you can see, the "elephant's foot" persists for at least the first few layers. Given the nature of this model, the ideal printing method is directly on build plate, no supports, as it is print-in-place and has tight tolerances in order to function correctly.
(stock)
- Powder-coated, Satin, & Garolite Sheets
- 0.25/0.4/0.5/0.6/0.8mm NozzleX
- 0.6mm Bondtech CHT
_____SL1S & CW1S (stock)
RE: Elephantfoot compensation vs. SL1 speed
Yes...this is exactly the problem...when you try to print high precision parts (i assume for this is the printer for), you have to put then directly on the build Plate....support structures will ruin the precision due to the "dots" they leave on the Model...
RE: Elephantfoot compensation vs. SL1 speed
Well if anyone has tinkered around with this before, please let me know what settings I can change to improve this.
I've tried lowering first layer exposure time (since the squish seems to taper off over several layers, I was hoping lowering that value would help). With 15 second first layer exposure, there doesn't seem to be much of a difference (maybe I have to go even lower given that this is a transparent resin?).
I also increased the elephant foot compensation from 0.2 to 0.3 with no discernible improvement.
(stock)
- Powder-coated, Satin, & Garolite Sheets
- 0.25/0.4/0.5/0.6/0.8mm NozzleX
- 0.6mm Bondtech CHT
_____SL1S & CW1S (stock)
RE: Elephantfoot compensation vs. SL1 speed
Would love to have this feature work properly on SL1S. Or a manual that will explain how to use it properly.
RE: Elephantfoot compensation vs. SL1 speed
Related issues with good detailed descriptions:
https://github.com/prusa3d/PrusaSlicer/issues/7970
and
https://github.com/prusa3d/PrusaSlicer/issues/8971