Surplus motors

[miljnor]

considering the motors new retail at 1295.00 I would consider a 200.00 dollar drive not to much of an inconvienieance!

[walter]

Originally Posted by miljnor considering the motors new retail at 1295.00 I would consider a 200.00 dollar drive not to much of an inconvienieance!

I`m in...
Thanks everyone!


EDIT: Google snapshot of SurplusCenter.Com dated 10.03.2005 shows 372 Sanyo Denki 1000w P5 motors in stock. 10 days later number is down to 263
Ehem.. Where`s my credit card...
.

[rsecret]

No sure I Am looking at the right motors? The motors are AC and the Rutex drives mentioned are DC. Once again I am confused.

[rsecret]

Ok, I searched and found the other thread that the Rutex DC drive will run these AC servos. Very interesting.......

[asuratman]

Hi,
I am new here. I also plan to buy that surplus motor 400 watt Denki P5 after reading that rutex driver will work with this kind of motor. Is this size of motor good enough to retrofit knee mill to CNC, if anyone of you have experience with this size of motor, let me know.

[damae]

Originally Posted by asuratman ... I also plan to buy that surplus motor 400 watt Denki P5 after reading that rutex driver will work with this kind of motor. Is this size of motor good enough to retrofit knee mill to CNC...

This motor is rated (according to the website) at 3.6N-m stall torque or 510oz-in. With gearing down, it should be able to move a knee mill pretty well, but maybe slower than you expect if you gear it down. Also keep in mind these motors are 2000 line encoders, meaning (from what I understand) 8000 pulses per revolution. So to get top RPM out of them

However, why not order the 1kw motor? It runs off of the same Rutex amplifier, and is only $2 more! ($39.95 vs. $37.95). And it has a stall torque rating of 8.8N-m (1250 oz-in), so will have more power available when you need it. Unless space is an issue, I'd go with the larger servos.


Anyone else have any reason not to go with the larger servos?

[rutexus]

At the Burdon Surplus Center in Nebraska, they are selling brand new Sanyo Denke motors. If you do a search on Sanyo the whole list will display.

They may be listed as AC motors but DC brushless and Ac are sometimes the same. In this case they are.

In my opinion, It is a deal that one can not pass up if he is ever thinking of building a cnc machine.

The motor, drive, encoder, and braking resistors together are far less than I pay for brush motors with encoders of smaller size (not including the drives).

With the 2030 drives I believe you will be able to set the step multiplier to any whole number you want to, so the resolution range is wide. The step multiplier is set during tuning with the windows program, no dip switches.



Tom Eldredge
Rutex LLC

[napalm03]

What size of these servos would I use on a 2x3' gantry? Would the 100w be fine?
3-400 watt better?

Thanks

[miljnor]

you know what they say???

BIGGER is better!

[ger21]

Especially when the price is basically the same.

[napalm03]

True enough

I ordered the 3 of the 400w model, the 1000w looks tempting, but ... It looks like a big drive to be hanging off this size gantry. Hopefully this will get my gantry project in motion

What power supply are folks using to power Rutex stuff?

Will the Rutex drive run these under TurboCNC as well as Mach3? anyone?

thanks

[ger21]

Originally Posted by napalm03 Will the Rutex drive run these under TurboCNC as well as Mach3? anyone? thanks

It'll work with both, as long as you're PC can output steps fast enough.