Dim3nsioneer

I read the publication too, two days ago... Nanoparticles are a serious issue. The size the particles from 3D printers have is sufficiently small to allow the particles not only to penetrate the lung but also to transfer into the blood (<100nm). And they seem not to origin from condensation as then they would be approx. 10-15nm in size. I think the proper way to deal with that issue in closed rooms is to enclose the printer and install a controlled ventilation to that enclosure with a HEPA filter. I think closed 3D desktop printers will become standard within a few years (especially the commercial ones).

Hi there In order to test the x-y-accuracy of my new Ultimaker (no modifications so far) I printed a cube with 1cm length at 0.1mm z-resolution (using Cura) in PLA. The results I got were x=9.4mm, y=9.9mm and z=10.2mm. I'm fine with the y-scale, also with the z-scale as I printed a 0.3mm first layer. However, the x-scale seems to be out of range. I then checked the distances for certain head movements. When driving 150mm in x-direction I got 151.5mm; the same for the y-direction. I adjusted the x- and y-step values and saved them in the EPROM. Checking the driving showed it was ok then. But the cube-print stayed the same, I still got 9.4mm instead of 10mm. When checking the Ultimaker forum I found a post about shrinking, arguing the shrink in x-direction might be significantly higher due to the fan blowing in that direction. I tested this theory by setting the fan to 25% PWM; it didn't change anything. I would like to ask the experts among you I they had any idea what might be wrong. I'm aware I could change the x-scale in Cura for compensation but I'm not looking for a work-around but for a serious solution. I'm looking forward to your inputs... Stefan

Hi together On Monday evening I got my Ultimaker kit, just one week after ordering! Just one minute after starting, I ran into the first problem (original holes in the back plane too big for the bearings). Well, that's DIY. I could have ordered the Ultimaker preassembled, but then I would have missed all the fun... :wink: I'm curious what my learning curve will be... :smile: see you Stefan