ABS for printed parts
Hi All,
Due to ABS shrinkage and that the default STLs are intended to be printed with PETG I presume that I need to scale all of the printed parts 1-3% to make sure that they fit correctly?
Just looking for a confirmation. Looking forward to getting my kit when it eventually ships!
Cheers
Ryan
Re: ABS for printed parts
I have printed the parts in both PETG (Prusa black PETG - a pain to tune in properly) and ABS (cheap filament I found on Amazon) and they were very similar when measuring with digital calipers with largest difference being about 0.2mm for the extruder body length. For the ABS prints I have scaled everything up at 100.5 in Slic3r. I have not received the upgrade yet so I can't be 100% sure that they will fit, but I think I won't have much of a problem using the ABS parts instead of the PETG ones.
Re: ABS for printed parts
Thanks, I have followed your lead and printed in ABS with an initial scaling of 100.5%.
I guess it will depend on how the bearings feel when put into the x carriage. Worse comes to worse I can always reuse my existing x-carriage as the changed design here seems primarily assembly driven for belt retention.
Re: ABS for printed parts
Can confirm, they need scaling. doing mine in ASA (only black i got other than PETG) and just did a small part to double check dimensions. i tweaked extrusion and LA first then adjusted the sizes a tad.
ABS/ASA prints cleaner looking so i'm doing them in 0.2 for items with slopes and 0.3 for others. i have plenty of black PETG already but why not ABS for that 100c+ temp tolerance. hopefully they don't warp.
Re: ABS for printed parts
Keep in mind that shrinkage could be different on each axis and depending on geometry (and a bunch of other paramters considering Slicer).
Usually there is no need to scale in Z because there is usually no shrinkage at all. It only varies because of the first layer.
Re: ABS for printed parts
Keep in mind that shrinkage could be different on each axis and depending on geometry (and a bunch of other paramters considering Slicer).
Usually there is no need to scale in Z because there is usually no shrinkage at all. It only varies because of the first layer.
yes, size matters too. kind of a pain if you wanted to do a whole plate of different parts. we'll see how the tolerances are i guess. small ones first then larger ones. hopefully it won't matter too much if it's off by 0.1-0.2 mm...