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02-07-2017 #1
Oh thats interesting to hear, i was under the impression whilst the unit uses 24v to operate, the step/dir signals were the nominal 5v . I'll take a look into that thanks
Last edited by Benja; 02-07-2017 at 08:59 PM.
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02-07-2017 #2
The step/dir signals will be 5V, but possibly differential (that might only be on the higher spec controller). If they are differential, the CS-Labs manuals show how to wire them up to single ended drives.
Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
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03-07-2017 #3
ok im with you now the wiring voltage in the nova is 24v
I was going to add another psu for the CS to keep their supply voltages seperate, but reading between the lines of what you are saying it sounds like id be better using the same supply?Last edited by Benja; 03-07-2017 at 09:07 AM.
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03-07-2017 #4
Just checked a wiring diagram, and the Novamill is 24V, so the wiring should mostly connect direct to the CS-Labs unit.
You'll need to go over the Denford wiring diagram and check voltages, as some things might not run on 24V. Things like the carousel sensor if you have an ATC, originally used a 5V proximity sensor, which if wired to 24V will most likely release some magic smoke.
Personally, I'd just use the one 24V supply. The 24VDC in Denford machines is only used for logic, so provided the existing power supply has enough power to power everything, I don't see any point in adding another one.Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
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The Following User Says Thank You to m_c For This Useful Post:
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03-07-2017 #5
Fwiw..
This is my reference to CsLabs hw, I have no idea about the baldor smartstep.
I use a csmio-ip-s on a lathe, currently with x,z,c (spindle) on step/dir ac brushless servos.
With servo threading, 0.2 micron step size, 32 mm ballscrews, and now connecting 2 toolchangers, 4 tools front and 7 tools servo turret.
The machine often runs days without being turned off.
Reliability has been 100 %.
ENC module for threading, hardware SSO, FRO, MPG, light bar, etc..
The cslabs hw is extremely good, support is very good, firmware and drivers are excellent.
At the moment I have about 110 IO lines in use, and will end up with about 200.
At the moment I donīt yet have the servo-error/alarm lines connected, in-pos signals, or homing signals.
Or the joystick.
Working on bits and pieces for a new saddle, that can take the toolchangers, then will tackle the input signals.
And take a much heavier yoke, for a bigger ballscrew on x, 32 mm vs 0.750" / 19 mm.
At this time, using an external DTI for reference, and the superb MPG, I can easily and reliably position both axis to 1 micron accuracy.
But the pulleys, and belts, both have major errors, and screws may have some errors.
Thus I cannot run a program and get to my goal of 1 micron programmed positioning, yet.
This will happen, with 100% certainity.
How is somewhat unclear.. but sub-micron glass scales and-or ground screws are an option, as is direct driving the screws.
So is putting the Z axis on linear guides, of 35 mm.
This is likely the first thing I will do, after upgrading the x axis.
Basically, because the Z axis gibs are somewhat sloppy, for my taste, and reduced sticktion should greatly help, as would zero rocking in the future.
Also, 35 mm linear rails and blocks are quite cheap and easy.
So, at the moment, the Z axis it not repeatable, about 0.01 mm, rubbish (gibs).
The x axis is better, but sloppy (poor rolled screw, 10 years old, from McMaster USA, a roton screw).
Thrust from 750W, 220V, servos is == 1600 kgf, = 16.000 N, so movement force is not an issue.
Conclusion:
I am very happy with the csmio - for doing commercial level stuff.
My cost on hw, wholesale, is about 8000 so far, including the 2 toolchangers at about 3500.
I expect to do profitable commercial work, so my investments are very reasonable, for me, imho..
A hobby user mostly would not have the same situation or expectations.
In short, I will be achieving very high-end results for about 12-14k..
vs a similar-results CNC schaublin at 80k or so.
My expectations are to recover all costs in 2 months, at most.
Time will tell.
If not, the journey has been worthwhile, and I will at worst have a kick-ass 5 axis cnc lathe, I re-built to commercial standards.
Occasional yacht/motorbike/airplane/etc parts will still pay for it, over time.
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03-07-2017 #6
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03-07-2017 #7
m_c .. donīt be impolite !
It demeans You and makes You look childish.
I commented on cslabs stuff .. since I know about it.
Did not comment on baldor stuff .. since I have no advice or help to offer.
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03-07-2017 #8Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
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