print speed by layer time

[grue19]

i wanted to print a white house that i found on thingiverse. it was going well until it started printing the columns on the front and back. as it got about half way up the columns, they appeared twisted and crazy. i was printing at 50mms and as i watched it print the columns it looked like the layer was deforming as the nozzle moved around it. i estimated the column was 1mm or 1.5mm x 1 or 1.5mm square. i'm using a .4mm nozzle.

so i did some test prints of a simple box that i scaled to be 2mm x 2mm x 25.4mm. at 50mms print speed, mangled mess, twisted, distorted. so then i slowed to 30mms and now it started to look good.

next, i set my extrusion width to be .4mm which is my nozzle size, i experimented with "auto" but the manual setting of .4mm worked better.
'
my question is regarding a setting for the printer to slow down when it prints the columns vs the rest of the building. the speed by layer time doesn't really apply, because the layer of the column is still part of the layer for the rest of the building. if not, then i am going to attempt to print the model again but at the 30mms layer time, given my test it should turn out well - just take a lot longer
thanks

[airscapes]

If you look into multiple process you can slow it down for the part of the print where the columns are and then go back to your faster speed above that.. There is instructions on the support page and a blog post if I remember.
You use tools > variable settings wizard to set locations where you want to change then add process.. you then alter each process as you want, then print choosing sequential and all processes..
so basically first process runs at 50mm with auto extrusion width, when it get to the next lever the next process can use different speed and width then the next level goes back to the way it was to start.. just remember each process is for the entire section of the model.. Think of it as a 3 layer cake..
Good luck!

[grue19]

damn it. that's right! i do that sometimes with infill already. i should think harder ha! thanks!