EEVblog #520 - Michael's 3D Printer

[Michael Sullivan]

I agree with SeanB that the joiners need to be screwed as well to prevent vibration from shaking the joins apart.

[Janaha]

I realys like to see it printing, a specialy using it's two printheads together. I realy like the idea with those two heads. Unfortunaly my little reprap prusa mendel i2 hasn't the space for two printheads and i made some mistakes as i build it yust like the online documentary. So now my x axis roads a a little to short so my Printhead can't use the full size of the 20*20cm build platform.

Greetings
Janaha

[gildasd]

I've been looking at the video a few times...
It's brilliant, love it, want one, no budget, will have to wait, darn.

... I can see a lack of rigidity/damping when it moves side to side, it kinda annoys me.

You could use triangular 10/15cm stiffeners in each corner (relative to movement) simple screwed in.
It would probably help precision.

Being a cheap arse, it'd probably cut-up old/defect PCB to make them...

G.

[SNGLinks]

The 1 inch frame parts, in the UK, were made by Dexion. It was called Speed Frame. Although Dexion went under some years ago, it's still available.

http://www.richardsonsuk.co.uk/Aluminium-Tubes/p47?gclid=CILV0_nHlL8CFQsEwwodj0cAsQ
 

[gildasd]

Checked it out,

Yeah, the junction parts are plastic... Great for damping but this this is going to need stiffeners or it will transform itself into a very expensive plastic life-cycle fatigue experiment.