900x600 build.

[RCaffin]

Free is never overkill ...

Cheers
Roger

[stargeezer]

I'll second that! Unless that support hardware costs more than paying for the "correct" size parts. Those are some awesome servos!!

[moparx12]

Hi again, long time without any updates.
One side of the bearings will be floating. This makes it easier to get the correct length.

I have got the rest of the aluminum now and started to test fit the complete frame.

And i have decided to go for Mesa electronics, so i orderd a 5i20 board and a 7I37TA to start with.

I can get 4 dc servos for free. Bautz motors. 4000rpm and 5.3 amps. I think this could be over overkill. But they are free, if i use them.

Any thougts?

Magnus
Attachment 329922Attachment 329924Attachment 329926


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I'm no pro but will your ball screws be anywhere near critical speed with you trying to keep the servos at or near 4000 rpm? Another way to ask: At the cutting speeds you will be using, will the servos have enough torque?

[Mag_vest]

Hi!

4000rpm that will give me 20m/min, from what i can understand, critical speed is around 2000 rpm. Then i have two options, gear them down, or limit the speed. The motors are leftovers from a oxyfuel machine, about 750kg. I have not calculated anything yet, but have an idea that they culd work.
They are rated 275w


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[Mag_vest]

Hi!

Not much time the last month, but got the sideplates cut with laser!
Test mounted the gantry, and alot adjustments left.



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