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Hi Robin,
That would be awesome, yup, up for it.
My machine turns on, homes and the spindle test function seems to work ok.
I've not found much on line but what i have shows a seperately removable front controller and stand alone computer/psu, mine has none of thatAttachment 28973, suitably blurry picture attached
Disappointment, that is not a PNC-3000, can't use it, sorry to get your hopes up :apologetic:
well thats a bit of a scunner, had my eye out for 1 since reading this post many moons ago.
Do you know anything about the one i have? all seems abit secret squirrel club. At least it was dirt cheap, might be a base for something slightly up from the tat you can get new from ebay.
If you fancy any of this stuff let me know, i'll never be able to sue it -Attachment 29107
Attachment 29108Attachment 29109Attachment 29110Attachment 29111Attachment 29112
Do you have any info on the Sanyo steppers? must be too old to turn up much on DuckDuck
Sanyo Denki
Type 103-594-01D1
2ohm
0.9 deg/step
I just bought a Ronland PNC-3000. I have searched a lot of documentation about it but to no avail. Currently the Yahoo groups you share are locked. Do you have a user manual and how to install the software to connect to the laptop. ?Quote:
Originally Posted by Robin Hewitt
Hi,
From what i can gather details are sketchy and if you have to ask it's probably beyond you (and me!)
I just missed out on a PNC-3000 on ebay, went for too much in the end but i was going to convert it to Beagleboard or something arduino based due to the above.
My mis-fire with the purchase of a roland CNC is crawling along with re-wiring due to lack of foresight on my part with ordering bits. It's a weird machine using wires to pull the various axis and then springs to return it(?) not sure it'll be much use beyond an exercise in converting and fiddling about. might try to add a acme thread and nut assembly later on.
Best of luck, perhaps someone better informed can help you out.
Snowy
hi, do you have a facebook? i think we can discuss more on there. my link: https://www.facebook.com/profile.php?id=100005478427464Quote:
Originally Posted by Snowy
thank you verymuch
Quote:
Originally Posted by Snowy
There is a User's Manual, a Command Reference Manual, and a wedge of Technical Reference including full circuit diagrams and PCB layout.Quote:
Originally Posted by anhduc341748668
Once I saw a schematic with a Z80 I just had to hack it. Didn't worry about the rest,
PS: The steppers have a glorious, 400 full steps/rev rather than the usual 200. The inverse square law kicks in and they purr.
Can you share it with me?
[I have a more important problem now. I removed 2 Roland pcn-3000 chips on board and reassembled them wrong. Exploding fuse and exploding mosfer . I'm very sad and don't know if I can fix it
Attachment 30021
the fuse has blown
Does this help?
Attachment 30044
Hi Robin, I have a Roland PNC-3000 machine, and I am working on trouble shooting some issues with it. Currently, the motor PCB is not receiving the necessary 12V supply voltage. When I supply the 12V using an external supply, the motor can be switched on, but I have been unable to figure out why the motor PCB isn't getting 12V. Another issue I am having is the spindle speed display is not working. Could you please send me a picture of the relevant circuit diagrams? Are the manuals and circuit diagrams available online somewhere?Quote:
Originally Posted by Robin Hewitt
Attachment 30862
This is the PSU, the rest would need some considerable finding and sorting out.
The spindle speed starts with a reflective sensor looking up at the bottom of the front pulley and connects to the PCB behind the speed control knob and to a rather primitive bar graph on the display panel.
Thank you for the PSU schematic that is very helpful! I will start with verifying the PSU is working properly and work from there.
I got a junk PNC-3000. While researching how to use it, I noticed something wrong with the z-axis DRO.
The value only increases when I raise or lower the z-axis.
I need a schematic for repair. And I want to know how to use it, so can you share the manual and other documents?
Best regards
mitarashidango
I'll assume the DRO is a quadrature encoder - you'll get two outputs typically labelled "A" and "B". With quadrature encoding one of those signals is considered a "clock" (a pulse indicates travel), and the other indicates the direction of travel. It sounds like one of the outputs has failed (wire snapped, etc?), and it's just counting the clocks regardless of direction of travel. In theory you can test the quadrature outputs, assuming they're driven high/low with something as simple as a multimeter - each output will toggle high/low at the resolution of the DRO - you won't be able to (easier) test each discrete step, but you can check that some movement toggles the status easily enough. Be aware that you want the DRO in circuit to allow any decoder pull-ups to operate.
I'd be more inclined to retro-fit with a stand-alone controller with integral display and keypad which takes ISO G-Code.
Doddy
I will disassemble it later.
Does PNC-3000 use quadrature encoder?
If so, it would be easy to fix.
magicniner
That would be nice, but I want to run it without modifications first.
If it's too difficult, I'll use raspberry pi or arduino to run it.
I want to use it to make parts for machine.Maybe even make a model.I might even make a model.
Maybe I will make a model someday.
I think the PNC-3000 hardware is good and will be converted to CNC for use. Even if it cannot be fixed.
Seriously, bypass the arduino/pi business, the cut down G-Code instruction set is a right hash-up and results in something you think is fine but that anyone with a decent controller wouldn't even consider.
Ok, I'll do the conversion with a decent controller.Quote:
Originally Posted by magicniner
Good afternoon ! Do you have service notes in electronic form?
I have become old since starting this conversation back in 2011. What I have and do not have is a complete mystery to me.Quote:
Originally Posted by Deersaster
There is a Roland PNC-3000 group on Facebook, you might try there.
Robin
I have a PNC-3200 that I may be going down a similar road with. I am missing the cable that connects the machine to the controller and I would like to test it out as it came before tearing into it.
Can anybody help with a cable diagram/ pinout?
Thanks!
Hi Robin,Quote:
Originally Posted by Robin Hewitt
I follow since a long time for efforts and appreciate really the change you made to your machine (ER16.... ).
I got the same machine more than 20 yrs ago, it collected dust in my basement until I moved to a larger house, and since I rebuilt 2 3D printer around the DUET 3D boards, I feel it's time now to rebuild my old machine, since the Woman Acceptance Factor is now fully positive.
Idea is to keep existing axis mechanics, upgrade as you did with an ER16 collet, flip the AC motor with a BLDC 500W one, and remove all other guts except the control knobs panel which is really helpful, and maybe the display panel whiwh is nice also, but complex. In this way, nothing external would dinstinguish the modified machine from the original one.
I started to reverse engineering the control panel, but I am not able to find some components datasheet that would be helpful to interface the panel with a mode modern interface board I envision.
You published on previous posts a schematic(part) of the main board, so I asked myself if you would have other schematics that would accelerate my refurbishment, Every schematic is of interest to me, since the complex interconnection between boards is a bit messy to reconstitute, although I have carefully dismantled the device.
Of course I understand it would have a cost to digitize paper documents properly if not done, so I am ready to pay for it if needed.
Also, I can send you the salvaged parts, motor, main board, enventually display if it is of interest to you.
You can send me private mail at jean.visconteATgmail.com if you feel it useful.
Thanks for your help, and bravo pour vos efforts
Kind Regards
Jean
Hi Jean
I suggest I photocopy the 3 relevant sheets and post them to you.
To read the full data I had to do 25 reads on clock 1 followed by 9 reads on clock 2, this strobes the data into shift registers on the main board.
If you want it posted, send a mailing address to [email protected]
best
Robin