Just a quick update on the build.
This is the result. Wiring has also been done and now I’m still waiting for an arduino to connect everything up. I’ll keep you updated.
A few weeks ago I ordered a heated bed kit from László, today it arrived.
The kit comes with an arduino shield. This offers a lot of features/flexibility for temperature control. A sketch has been made, but I’m going to add some extra functions. (warning light T>40° and etc)
The bed itself is a high grade precise flat aluminium plate.
It has al the necessary holes already drilled. You van see: square holes for the magnets holding the build platform,holes for the resistors, and some holes to mount the bed without changing anything to the RapMan.
It also includes a custom Z-switch.
It’s really a wonderful package, almost “build and use” 🙂 More info can be found on the creator’s blog
I’m going to document the build on this blog later on.
Today finally got the SD readings to work. A brand new Sandisk Ultra 2G did the job. Don’t know why that card works and the others don’t.(evendo some of them worked before).
After a few prints another problem started:
It did print normally while displaying this. So there was no temperature change going on at the moment, evendo it’s displaying it. After I stopped filming it got worse. Looked like a lot of artifacts. So I decided to reboot the system, with a big suprise afterwards.
No display info at all: no splash screen,no menu. Think de display controller is faulty. With the menu layout in mind you can operate and print normally, but it isn’t that easy .
Today I’ve encountered a problem. The BfB board doesn’t recognize files on SD cards anymore.
I’ve tried everything:
- formatting FAT,FAT32
- different card
- checking for dust
- re-installed firmware
Nothing seems to help 😦
Today I printed a new piece, one of the largest so far. An iPhone holder for navigation in the car.
Because it was tall and long it started to warp fast. Which resulted in a crack halway. Aldo this presented not much of a problem since the basic feature (holding the phone) stayed preserved.
A problem that’s worse is the following you can see below. The edge of an object consists out of two layers. One inner layer making contact with the filling. And one outer layer making contact with??, sometimes nothing so its not connected and loose. I know warping had its part in the problem. But I’ve encountered this problem earlier also with objects with minimal warp.
So I was thinking of printing without extra shells
It’s been a while that I could test some more. Yesterday new plastic arrived so improving could continue.
As you can see it’s a big leap forward. The previous bad results were mainly caused by loose pulley’s.
This helped the most: glue/loctite on pulleys and a filled flat on the extension bar.
Next step: understanding skeinforge 🙂