Is there anyone who is using a Fuse1+ with PA12 Speed Otimized settings and getting good results?
Our specs:
PreForm 3.37.5.370
FW 1.18.2
30% Material refresh
32% packing density
Bed Temperature Offset now on -1.5C
Dosing offset -4.0 degree.
We are facing the following issues:
We are struggling with removing surface armour. Its bound so hard we are sweating to remove.
We have severe dimensional errors: 16mm nominal is rather 16.38mm. We done XY Scaling with legacy setting which could mess up a little but not that much I guess.
We have heavy amount of pitting and dimpling.
Heavy overdosing. The material spill is almost full under the linear track of the recoater and almost reaching the gears at the back.
Other than above the surface quality is superb.
If you have any advice on how should we get this thing dialed in? Should we use Default or Legacy instead and wait for Formlabs to fine tune that Speed Otimized setting?
Hi @snapfaab, thanks for your post. Sorry your having these issues!
We talked it over with a few of our SLS experts and agreed the best next step forward is to connect directly to our Customer Service team here. They’ll be able to help diagnose your problem in more detail and help you get flawless prints soon.
I’ve been struggling with this same issue on both of our printers (we print in PA11). The speed optimized beta causes extreme hard caking, it seems to foul the powder so that it does not pass through the mesh in our sift, and produces a large amount of white flakey stuff (seems to be oxidized powder or something, not laurolactum) that ends up in the first layers of powder during subsequent prints and causes them to fail. Have you managed to resolve the issue yet?
I’ve had this issue with both PA12 tough and PA11. I’ve more or less solved it by dropping Armour laser power to around 40-50% of the profile’s regular value.
Hi, We are not using their Speed Optimized settings yet but that time was 5.1 and now its 5.3 and they already introduced bed temp offset calibration which might solve the problem. I think they are focusing on PA12 the most so until its resolved I dont think PA11 settings would change a lot. Pa12 is their most universal powder.
We are using PA12GF and have now used the new setting for the first time. The surface quality of the parts is good—actually even better than before. Unfortunately, I noticed that in some areas there was layer delamination, and in other areas it looks as if the material has bubbles.
We don’t print PA12 GF and haven’t encountered this specific issue ourselves, but my gut feeling is that the large surface area caused excessive heat buildup.
Increasing the speed means that large-surface-area parts, in particular, have less time to cool down. The part looks quite large to me and was obviously printed with the large surfaces parallel to the build plate.
I would first try printing the part at an angle without changing any settings—say, at a 35–45-degree angle.
But as I said, that’s just a guess.
Still, it’s interesting to hear about the new settings for PA12 GF for the first time.
