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06-17-2014, 11:35 PM #21
The temp required is not outside the range of my typical RepRap printer (Makerfarm i3). Both my .4mm JHead and .5mm Magma (neither are exotic heads) print at 245C nicely. I don't think they will go to 260C or higher but they are fine for Pet+ @ 245C. As for warping, I've had some issues. It's hit and miss and long, thin objects warp for me. Long and thin parts are a challenge anyway but beware, Pet+ can warp. It may not be as bad as ABS, but it can warp in certain situations.
I don't have a full high-tech enclosure but I do have foamcor sheets (lined with space blanket film) that I've cut and set around the printer making a box to keep drafts out. I tried to print a part 5 times and it warped 1/2" off of the bed every time. Finally using 65C for the bed I was able to reduce it but never eliminate it. Now I add tabs to the corners to trim off later. I'm now getting perfectly flat and warp-free prints of the part.
Here is a photo of the part with the tabs. I originally made them long enough so I could put clamps on them to further insure that they didn't' come up. But, @65C and using Aquanet as an adhesive, I'm getting good results. And, I haven't needed to clamp them down. The tabs are 2.5mm thick so they don't tear away from the part. I tried using a dozen rings of a skirt a few times but the part just pulled away from the skirt. These thicker tabs don't pull off.
Warp.jpgBambu P1S/AMS
NVision4D http://nvision4d.com
Qidi X Plus 3 Paper thin first...
05-27-2024, 01:15 AM in General 3D Printing Discussion