I slice with Cura and often print with ABS, and I've found the transition towers generated by Chroma are pretty much useless for ABS. The sharp corners plus the lack of any real brim mean the tower warps and pops off within 10mm. I print in connected mode. My prints often need options that Canvas doesn't offer.
I have had some success using purge towers generated by Cura, but I have had some problems with calibration. I lowered the loading offset slightly to move the actual change later which solves bleed at the end of a color for early layers, but the color change point seems to creep backwards until I am getting the next color in the actual print, despite the pong values being within about 0.2 of 100% and usually closer.
I have a few requests that will address this problem:
- Add additional shapes for the purge tower, at minimum rounded corners
- Allow adding a proper brim to the tower
- Allow designating an area as "ping safe". The user could place this region over slicer-generated purge towers, and Chroma could place pings whenever it needs them within that area
- Make Min Bottom Density independent of the Max Density, for example so I could have a 100% dense first layer for adhesion, but keep a 50% max density to help avoid warping for all other layers
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