Spindle control board from little machine shop?

[Stevenh111]

has anyone used this? or know if it works with the SX3 as advertised?
for $99 it seems like a decent fix to the earlier long running thread i have seen here.

LittleMachineShop.com - CNC Spindle Control Upgrade Kit

[H500]

Interesting product. You should ask them to create a video of it working. I assume they allow returns if it's NFG.

[devers6]

I bought one of these, just to have one more way to try to speed-control my SX3. I have been working on this for over a year now, with many tribulations and false starts (see the big SX3 speed control threads for details). At the moment I have my motor running using a separate servo amp (ADC B30A40 on 220V AC) under control of a G540; although it is on a bench and not in the mill so I don't have any stress or performance metrics. I have spent much of the last few months designing an entirely new front panel with manual speed control, on-off and CNC/manual switches; but creating a panel with a non-functioning mill has resulted in a chicken-and-egg problem that usually just frustrates me into going into the house and watching TV.

I also have an intelligent DriveBlok drive from Ebay that I would love to get working (it seems to have a resonance stall above about 400 RPM), but it would be a great drive because it has an RS-422 port that will output parameters such as drive temp, current, and speed in real time.

So now I have this apparently Sieg-made controller for the stock drive that looks to do exactly what is needed. I have to repair my original drive in order to test this new module, but I would like to try it out to see how it compares to my other solutions. For $99 it seems to be an economical solution, but it also requires a new front panel since it relies on discrete switches for on-off and fwd-rev. I don't know when I will get to it, but I will post here with my results when I do.

[mattm55]

Update: I asked LMS for some more information. It looks like the module needs to be conected to a breakout board and not to "switches" as I might have thought to simple. I'm not good with electronics so I'll have to do some more investigation. Maybe a breakout board from Keling? ..might work?

I'd also be interested in setting one of these up. It looks like you need:

~ 120v AC maybe from L1/N1
~ switch for Start
~ switch for Fwd
~ rotary 0-10VDC with a 10VDC PS?

I have an email into LMS for some more info. If they can provide just a little more info, I grab one and do a write-up. I'm no EE but can follow directions.

Looks promising if it works as designed.
Matt

[3space]

I'm surprised that there haven't been more comments on this thread. I will receive my SX3 mill next week, and plan to CNC it shortly after receipt, once I can collect all required parts. The lack of spindle control was annoying. So, I was psyched to see this board. $99 seems like an OK price for this.

@Devers6 (same one that I am subscribed to on YouTube?): have you made any progress with this?

Anybody else know whether it yields solid results?

Thanks!

[Vatorman]

I also purchased this kit from LMS and am currently installing it. I am using the g540 and smooth stepper. I did as instructions were written and having issues with configuring in mach.
Talked to chris at lms and he mentioned to do the simple connection first to see if motor will work with the new chip furnished in the kit . So that worked and I went on . Still have problems.
Anybody else going through this.

[manley86]

Has anyone made progress with these? My conversion is stuck at this point. I (and a few others) would love to see a video of one working.

Rob.

[kooka]

gday all, just want to let yous know that i purchased , installed the lms spindle control board and after initially cooking the 110v transformer( using 240v) replaced it with a suitable one, have it working well- on/off ,speed control within around 10rpm of selected speed through out rev range >3600rpm. only have a slight issue which i have not bothered to diagnose yet, if e stop out and comp on without mach3 opened spindle will start. am sure this should be an easy fix ( configuration or even disable the m4 reverse signal as not really needed ). cheers

[manley86]

Any chance you could post a video. Very interested to know how quickly the speed control works and whether is makes that annoying beeping sound while its working?

Cheers, Rob.

[mattm55]

Yes, I would like to see any info on this as well. Great to hear it works... Matt

[kooka]

no beeping , response is good very similar to a normal vsd with a small ramp up set. videos and such not my thing and may be hard to get it to show op well but will have a crack at it when time permits.

[kooka]

forgot to add my setup is direct from g540 no switches etc