- Joined
- Oct 7, 2020
- Messages
- 2,116
Neil, That was pretty quick. Did you order right from Prusa or did they have it here in the US?
I ordered it directly from Prusa. No one had these boards in stock except Prusa. It was last Sunday evening that I placed the order, so it took about eight days. Very happy about that. Hope to work on it this evening.Neil, That was pretty quick. Did you order right from Prusa or did they have it here in the US?
@WobblyHand There are some general shrinkage parameters based on different materials which will get you in the ballpark. Picking a filament type and brand and then doing some test prints, such as small cubes, and then measuring them would be a viable route. There are most likely are some test prints available on www.thingiverse.com that will be of great help to you.I have a Prusa printer on way, how do you compensate for general shrinkage? I received a 3d part and it was slightly off on dimensions. I realize we are talking plastic but what's the process for getting parts on dimension? Is the shrinkage isotropic or different in the different axes? What kind of accuracy can one expect?
I suppose percentage wise it's not that much, but on the order of 1% error is what sticks in my mind right now. Need to go back and measure things carefully. Have to give things a fair shake and make sure I'm not measuring a brim or nubbin sticking out.@WobblyHand There are some general shrinkage parameters based on different materials which will get you in the ballpark. Picking a filament type and brand and then doing some test prints, such as small cubes, and then measuring them would be a viable route. There most likely are some test prints available on www.thingiverse.com that will be of great help to you.
As you well know, the tolerances of these printers are very different than machining a part. What level of precision are you looking for when you say "slightly off?"
I'm really into 3D printing. Customizing and Tuning are large part of the fun for me, so I have to restrain myself. Tuning is important, and you'll need to develop print profiles for the different filaments that you use if you really want great results. It's involved to write about, but this Teaching Tech has a good video on it:I have a Prusa printer on way, how do you compensate for general shrinkage? I received a 3d part and it was slightly off on dimensions. I realize we are talking plastic but what's the process for getting parts on dimension? Is the shrinkage isotropic or different in the different axes? What kind of accuracy can one expect?