DSLR Scanner: Camera Supports and Positioning

[jb7]

Good luck with that, and Daniel too-
Will be following with interest, and look forward to pilfering some code someday-

[Peter J. De Smidt]

Here's a video of a very early stages prototype xy-stage: https://www.youtube.com/watch?v=MZ_OrwB90CM

[Nathan Potter]

Peter, quite nice. I didn't notice any backlash in translation although I suppose that would not be too critical for the application here. Interesting that you chose two different rails for X and Y motion but I assume they are driven by the same type of stepper. The real trick is to keep the assembly in the exact plane of focus during translation.

I take it that this is a prelude to a full blown prototype that will scan LF at potentially high rez by stepping then tiling the copies using software.

Nate Potter, Austin TX.

[Peter J. De Smidt]

Hi Nate,

Yes, this is just a prototype to work out control issues.

Btw., the rails are all 450mm fully-supported SBR 16 linear bearing rods. The steppers are 12-volt Nema 17 200 step/rotation models from Adafruit. See: http://www.adafruit.com/products/324. If I were to buy new ones, I'd get slightly bigger ones.

[ludvig friberg]

Sweet rig!
Is it Misumi or similar or did you machine the parts yourself? Can you give me a ballpark figure on the mechanics?

Looking forward too seeing more, keep up the good work!

[Peter J. De Smidt]

Thanks Ludvig. The rails and blocks were from Ebay. The total was $140 shipped for 4-450mm rails and 8 blocks. I'm happy with the quality.