Where is Mendel???

Hi everybody!
Please help: where can I find any information on the previous version of REPRAP(Darvin)?

And another question: what are the characteristics of the stepper motors, used in REPRAP?

PS. Sorry for opening the new topic- I couldn't find the information enywhere else.

The old info for builds can be found [dev.www.reprap.org]

The exact specification is that the darwin runs on 3 NEMA 23 steppers (with 1 nema 17 for the gen 3 extruder). And the mendel uses 4 nema 17's. Nema 23's are more powerful (and heaviers and more expensive) than Nema 17's. I've got both and the difference is pretty amazing (My darwin's steppers are about twice the size of the 17's i'm using to run my under construction mendel)

Thank you VERY VERY VERY much for a link!!!!!


About the motors: We have the company, that provides stepper motors in Ukraine. Here is the list: (http://www.elkos.com.ua/catalog_mcat_17_cat_21.html). But to order the motor I have to know more details about him. (Voltage, Current, Resistance, Holding Torque and other...)

The stepper motors sold by MakerBot are:

NEMA 17
Part Number: Kysan Electronics / 1123029
200 steps per revolution (1.8 deg/step)
0.4A / phase
Phase Resistance: 35ohm
Phase inductance: 44mH
Holding torque: 260nM
Shaft diameter: 4.78mm / 0.188" (3/16")
Shaft length: 24mm
Motor depth: 34mm

NEMA 23
Keling KL23H51-24-08B
Specifications here: [www.kelinginc.net]

My guess is that you want a stepper whose current limit is about the same as the current capability of your stepper driver.

Thanks for the information!!! I can order something exact now!

I have the pair: L297/L298 (as a driver). So, my power limit is 2A (as far as I can remember).
But I don't want the motor that is more powerful than it is needed. (the more powerful the motor,- the more expensive it is.)