I’m trying to set up Kisslicer and I have a few questions for those that can answer. 1st how do I save different materials and configurations 2nd I want to print a raft around my part to keep it from curling up (ABS) but all it does is one lap around the part about 3mm out 1 layer high, how can I change this to make a 2 or 3mm raft that is attached to my part a couple of layers high? BTW I have the free version of Kisslicer.
Minor correction to above - You don’t ‘save XYD’ you ‘copy style’ and then rename it, you’ll then be able to select if from the drop down at the top. The same applies to the Printer and Material Tabs.
I believe what you are looking for is a brim, not a raft. A raft is a thick grid that the printer deposits below the printed part before commencing the print. This can help with curling issues but has a detrimental effect on the surface finish of the base of the parts as it needs to decoupled from the raft after printing.
Sadly, at present KISS does not support brim mode. I fix this by inserting my own brims in modelling software before exporting the STL - this is actually better for me as you can define where you need the brim rather than having one all the way around the model.
If you are having curling issues. Try using cheap ‘extra hold’ hairspray or a week solution of ABS dissolved in acetone as bed surface preparation. Also try raising the ambient temperature around your print area or increasing the temperature of the heatbed; curling occurs due to thermal contraction so anything you can do to reduce the temperature gradient between the glass transition temperature of the ABS and the ambient temp will help.
Thank you both for the help. @Tim_Rastall I was wondering if I was going to need to design my own brim into my parts. I am using a poly tape (the stuff from Lulzbot) and it was working ok at first but I’m having more and more problems now. Also I have my bed set to 110c but I’m not sure if it could go any higher as it is having a difficult time maintaining that temp as it is (maybe that’s what is causing my curling issue). It was doing good at staying at 110 but after I did my PID fine tuning now it gets to about 107c and hangs there for a really long time. I am going to do the PID fine tuning on the bed again and see if I can get some better values. If not I might go back to the original values I had and see if it solves my issue. On the hairspray thing…would I spray that on the bare glass or over the tape I have on the glass?
Hairspray should work on either as long a s the surface is clean. If your bed temp is fluctuating that may be causing the curling. Have you insulated underneath your heated bed? Cardboard wrapped in tinfoil really helps to ensure as much heat as possible go’s upwards. Also, did you use PID autotune or did you do it manually? - if your firmware supports it you can use M303 E-1 S110 C8 to do a PID autotune at 110 degrees for 8 cycles, the resulting KPI values can then be put into your firmware or saved to EEPROM.
Yes I did the auto-tune and then entered the values into my firmware and re-uploaded it. I will try the insulation under the heated bed…never thought of that. Do I need to worry about the tin foil shorting out anything under the bed if I go that route. Otherwise I might just get some fiber based insulation like what is used on a car to insulate the muffler from the body. After I apply the insulation I should probably do another PID auto-tune as I would assume that would affect it a lot.
Fibre insulation will work well and yes to autotuning afterwards. I fine autotune doesn’t always work on the first go so try doing a couple of passes, flashing the new settings to firmware each time.
Ok I’ll give that a go. Thanks again for the help.