I'm thinking of changing out the acrylic support under the build plate to avoid warpage and possible make it lighter/stronger. im thinking of using a carbon fiber sheet since it should warp from the low heat that it would absorb from the heat bed and should be more or just as rigid as the acrylic and possibly lighter too. alternatively just an aluminum plate would do but will likely be heavier and conductive as well. any ideas suggestions or comments?
I don't think it would change anything significantly. What I do worry about is how crappy the bearings there are, I get quite a bit of wobble out of them. Try grabbing your build plate at adjacent corners and see if you get any rotation, I get a couple mm at the edge. I also put nuts under the heated bed supports, the idea was to make it easier to turn the wing nuts and it seems to put a bit more tension on the springs too but after adjusting the bed the acrylic build plate seems to be pretty flat.
I had the same issue with the bearings, so i've replaced them with the ones i mentioned before. It's more a minor upgrade, but it was worth it, a bit more smoth and quiter. I had to inrease the holes in the buildplate to 4.8mm to get a bit better aligment. I think you geht those at Amazon in your country as well.
My buildplate is bend realy bad and it's almost impossible to get a proper aligment. I decided to design one and get it laser cutted. I made two designs, one standard an the other were im trying to get a mount with a thermal insulation from the Heat bed. I hope they will not get to heavy..... I will get them in one week, and let you know how they came out....😬
Thank you, original buildplate is 195 gram, my new one is 274 gram. Im ok with that difference. I made it out of 4mm Aluminium, wich is a bit to strong. Even at 3mm ist would be stable enough with aprox. 205 gram.....
Can you share the .dxf or what ever source file you have? I will give it a go on the CNC at my workplase, but it will be very nice not to start from scratch.
Of course, i will put it in thingiverse. In my design there are two bearings on the left side, i can change that into one if you want, or maybe i try to get the additional holes into the existing design.
I have added the holes for using one bearing on the left......please keep in mind that i am using the scs8uu bearings, the original bearings that came with the printed housings are a bit out of tolerance.
Ralf, did you find that the 4 bearings give smoother transitions, I'm thinking of getting one of these cut for myself, I think it would be far better than the acrylic version, and the aluminum would also help with heat dissipation, that's what it does. The slight increase in weight would be compensated for with the 4 bearing support, or so I think. Oh yeah it is a beautiful piece of drawing by the way, I can't wait to get mine done.