heatbed and bed leveling

24v kapton heater, fast heat up time
aluminum heat spreader (.06" thick) Provides even heat distribution.
boro glass for build surface. Maintains a flat and level-able build surface


3d printed bed corners, raise the build surface to allow heatbed wiring and leveling, also to keep the build surface constrained


Bed leveling simple.



upgraded dedicated heatbed power supply and electrical

ssr for heat bed power control via ramps

 

Hello you have a place to buy glass borosilicate?Je am French, macmaster, not the book france.Dans my country, not easy to find too expensive.

Cordially

 

Hi Cambo,

Are there STL files available for that bed leveling setup?

Thanks!

 

here is the file for the corner bracket.
http://www.thingiverse.com/thing:90127

 

How much Z-Axis did you loose?

 

about 1/2"

 

Thanks for the STL. The base under your bed seems quite large. Is that the stock base? If so I'm guessing you could've fit a larger piece of boro/aluminum (if one of the correct size exists). Haven't gotten my printer yet, but I'm looking to get a setup similar to what you're using. Is 10" x 10" the largest piece of boro/aluminum I can fit?

 

10" is the widest width that will fit,

i supposed you could get a longer length to fill the length of the birch if you wanted to.

 

Okay, good to know. Thanks.

 

keep in mind though, it will be pointless to get one that size because you wont be able to use the full length without modifying the mechanicals a little.

 

okay, was wondering about that. Thanks.

 

Cambo so you use the little screw (the 4-40) to raise the bed or lower it to level it, does this mean that the bed actually only sits on the screw then and not the corner?

 

yes sits on the screw when you raise/lower it, the rest of the bed is constrained by the corner pieces.

However this will only work to a certain extent. Make sure your birch ply is level as you can get it before you do this mod. There's probably about 3mm of adjustment range on each corner. If you go beyond that you end up lifting the glass beyond the corner constraints

 

I'll have to give it a go. My setup right now uses springs between the corner piece and the birch wood but doesn't seem to be the best option. The center of my print platform seems to be great, its when I go larger and out from the center I get issues. Appreciate all the info!

 

are you using the robo heated pcb? if so get rid of it. That adds on to your problems when it gets heated because the pcb doesn't sit flat, at least for mine it wasn't. Even out of the box.

post your bed leveling solution..when you get a chance.

 

Hello, I ask anyway, to put the bed niveau.Est it possible to use a laser level instead of a comparator?

Cordially

 

You are not trying to level the bed like you would a shelf, You are trying to level the bed with the nozzle so the distance between the bed and the nozzle are the same all through out the bed.

 

It is on the heated PCB but i have boro glass over it, wouldn't the boro glass take care of the warp? I'm just hesitant on going with the kapton tape heater w/ aluminum purely because it is more money investing in the printer than I wanted to have to do out of the gate.