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Author Topic: Mach 3, Super PID & Rotozip  (Read 10538 times)

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Offline rwf71

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Mach 3, Super PID & Rotozip
« on: May 15, 2013, 08:20:06 PM »
My barely used, 20 some year old Rotozip and original box.
« Last Edit: May 15, 2013, 08:22:17 PM by rwf71 »

Offline rwf71

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Re: Mach 3, Super PID & Rotozip
« Reply #1 on: May 15, 2013, 08:24:05 PM »

My Christmas present to me, super PID, fresh out of the box.

Offline rwf71

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Re: Mach 3, Super PID & Rotozip
« Reply #2 on: May 15, 2013, 08:26:49 PM »
Didn't take pics of the IR sensor install but went very well, ended up with a solid,dustproof durable mount.

Offline rwf71

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Re: Mach 3, Super PID & Rotozip
« Reply #3 on: May 15, 2013, 08:28:02 PM »


Zip tied to a table leg.

Offline rwf71

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Re: Mach 3, Super PID & Rotozip
« Reply #4 on: May 15, 2013, 08:30:14 PM »
Super PID mounted on mock up panel and wired for manual control. Not running, spindle view mode.

Offline rwf71

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Re: Mach 3, Super PID & Rotozip
« Reply #5 on: May 15, 2013, 08:32:02 PM »
And finally running under manual control at 5000 rpm, (5006 rpm)

Offline rwf71

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Re: Mach 3, Super PID & Rotozip
« Reply #6 on: May 15, 2013, 08:52:20 PM »
    Ok, so far so good. My BOB has 3 relays, I each at output 14,16 & 17. I went to config>ports and pins>spindle set-up,    took the check from "disable spindle relays", set both M03 & M04 to output 1.
    Then go to outputs tab, enable output 1 ,port 1. pin 14. Save and apply as needed along the way. Ran the PID start circuit through a set of N.O. contacts on the relay at output 14 on the BOB and PRESTO ! Router turns on and off through Mach 3 commands, Pretty cool. 8)
    Now here's where I'm stuck, I want to control speed through Mach 3 as well but the only 2 outputs I see left on my BOB are both connected to relays just like 14 that I'm using for spindle ON/OFF control, How do I get the PWM signal from Mach 3 through or around this BOB and get it to the Super PID ?

     
thanks, Rick


Offline rwf71

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Re: Mach 3, Super PID & Rotozip
« Reply #7 on: May 15, 2013, 09:17:58 PM »
Don't know how I only got half a BOB in that last post ?
Re: Mach 3, Super PID & Rotozip
« Reply #8 on: May 22, 2013, 09:48:16 AM »
It looks like you may need to interupt the signal before it gets to the bob or replace the bob with something else that does what you need. If you get really creative you might be able to remove one of the relays but the optioisolator may not be fast enough for your needs,

Mike
We never have the time or money to do it right the first time, but we somehow manage to do it twice and then spend the money to get it right.

Offline rwf71

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Re: Mach 3, Super PID & Rotozip
« Reply #9 on: May 22, 2013, 06:47:34 PM »
Hey TOTALLYRC,
    I haven't posted anymore because it didn't look like this thread had any interest. I had to "map out" the BOB on my own as no info is to be had. I found pp pins 2-9 as step/direction for 4 axises, and 14,16 &17 are the relay outputs that are seen at top of BOB. PP pin 1 is in the db25 header on the BOB and soldered on backside of BOB, but I looked at the BOB with a bright light, through the BOB from both sides, and there are no traces at db25 pin 1 on the BOB. It is a unused and therefore Wasted possible output pin from Mach 3. >:(
    I soldered a wire on pin 1 under BOB and used that as the pwm output from Mach 3 to the Super PID. The Super PID instructions say it can take input directly from the pp because it has optoisolation separating the control and mains. I now have Mach 3 totally controlling the Rotozip like a "real" machine tool spindle, M3 or M4 turns it on, M5 turns it off, add in an S(insert rpm here) and the Super PID & Rotozip deliver commanded rpm. ;D
    I'm a pretty happy camper, :D, I do have one small problem to work out though. If I turn the zip on manually with the toggle and use the pot for speed control I get 5,000 - 30,020 or sometimes a little more (30,200). But when under Mach 3 speed control the zip maxes out at 24,200 no matter what numbers I put in the spindle pulley config of Mach 3. :-\ I started with 0 and 30,000 ,  tried dozens of other upper end numbers and never got above 24,200 rpm on the rotozip. I finally setteled for now on 0 and 23,350 because that gives the best correlation between commanded and actual rpm, pretty good actually right up to 24,000 rpm but any commanded rpm above only gets 24,200.
    I more than likely won't want to run my spindle above 24,200 anyhow so I don't really see it as big deal because Mach3 speed control works great from 5,000 to 24,000 rpm. I have just sent an email to Super PID tech support explaining my set up and results. Time will tell if they have any idea what's going on.
    I thought this post might be helpful to someone else as I SURLEY can't be the only one who ever got one of these oddball BOB's. Maybe I'm just the only one stubborn enough,(dumb) to find a way to use it. ::)

                            Rick