Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: Steve_B on August 05, 2009, 06:57:28 PM
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I just read in section 4.4.1 of the latest Mach3 documentation & found a little over half way down the page steppers need to be driven by a Chopped Micro Stepping controller. What is that ??? I have a 1995 gantry that has run well with the Oriental 5 Phase steppers & drivers. I just need better motion system software. There is no resistance load on the gantry just the weight of the cross member. Anyway we will be replacing a 486 PC to use Mach3 for our motion. Could I have problems with old electronics? Will the drivers know the difference?
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Modern stepper motors and drivers often give smoother performance compared to older ones. If you are happy with it, as it is now, then you should be fine :)
Hood
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When I watch YOUTUBE videos the Mach run machines are whining very loud. Our machine is a little loud once in a while but nothing like the ones onYOUTUBE. Is the whining due to lower cost drivers & motors. What are good steppers & drivers for Nema 34 size motors? Medium light duty.
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I have Gecko G202 on the Bridgeport and the Chinese drives available in the UK from Arc Euro on the coil winder. The Geckos are smaller and I must admit I prefer them although to be honest there doesnt seem to be much difference in performance.
Hood
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A comment on sound:
With the additional mass of the 4th axis to move around, my 'X" axis started loosing steps occasionally, so I am planning to replace it with a servo motor. Until I decide which motor I want as a permanent replacement, I replaced the 425 oz-in NEMA23 (parallel wired) with a 640 oz-in NEMA34 (series wired) stepper that I had left over from my 4th axis project. Gecko 203V drive @ 72V.
http://www.kelinginc.net/SMotorstock.html (http://www.kelinginc.net/SMotorstock.html)
While I have not done any performance testing or run any parts yet, I can tell you that the difference in sound is extreme.
The NEMA23 was a screamer and the NEMA34 is almost as quiet as a servo. So my little Fankenmill currently has a NEMA34 on the 'X" and the NEMA23 on the 'Y'. With a program running, all you hear is the little 23 motor screaming away.