Hello Guest it is March 28, 2024, 06:40:17 AM

Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - hemi43

Pages: « 1 2 3 4 5 6 7 »
11
General Mach Discussion / Re: how to connect/wire a rotary encoder?
« on: September 11, 2020, 04:48:51 PM »
Thanks again for your help. I'm an old retired Tool Maker and got into this CNC lathe to try and keep my brain active, and it has done that for sure. Been learning lots over the past few days.
I will look into the "Z" channel on my encoder, but if it doesn't I will just go with a single pulse pickup for now.
Dan

12
General Mach Discussion / Re: how to connect/wire a rotary encoder?
« on: September 10, 2020, 09:06:00 PM »
Thanks for the reply Graham.
The machine came with the rotary encoder already installed, so I would like to use it. I got the PMDX-122 for free, so if I need to replace it , it's no big deal.
What do I need to look for in a breakout board so that it will be compatible with my rotary encoder?
Is there a certain brand and model you would recommend?
I would use the single pulse input, but my end goal is to be able to cut threads.
Thanks again.

13
General Mach Discussion / how to connect/wire a rotary encoder?
« on: September 09, 2020, 08:37:29 PM »
Let me first say that I am totally green when it comes to building CNC machines, but I picked up an older CNC lathe that I want to run with Mach 3.
I have all the stepper motor connections figured out, but I am stumped as to how I'm going to connect an encoder to my breakout board.

The encoder I'm using is this -->  https://panasonicsensors.com/index.php?route=extension/module/product_downloads/get&did=259

This encoder came originally on the lathe,

The breakout board I'm using is this one --->  https://www.pmdx.com/PMDX-122

My end goal is to be able to cut threads on this lathe, but I'm not sure if this even possible with Mach3.
Any help would be greatly appreciated. Thanks




14
Thanks Craig;
I didn't realize that Mach3 was windows only. That answers a lot of questions for me. The only reason I want to use a parallel port is because the CNC controller I'm using from CandCNC requires it. Eventually when it fails, I will do away with parallel ports all together. The system that CandCNC sells now comes with a PC running Linux. I just found out that they are not using Mach3 anymore on their systems, and you've answered why.
Thanks again for taking the time to answer.
Dan

15
I've been using Mach3 for over 10 years on a plasma table and have had absolutely no issues. I'm using XP on an old Dell Dimension 8300, but am concerned that it will fail. I want to get a backup computer, but the older ones with a Parallel and serial port are getting difficult to find without mechanical problems like leaking capacitors. I'm confused as to what to look for ! I read that Win7 has issues with Mach3, and WinXP is not compatible with new computers. What is the newest computer I should be looking for and which operating system? Linux? Also, how well do the parallel/serial adapter cards work on newer systems? Thanks for any help

16
General Mach Discussion / Re: What would cause my limit switches to trip?
« on: December 24, 2012, 01:26:02 PM »
Is the BOB in a metal box? A simple one could be enough ti ground the board.
No, it's not in a box, but it is inside a metal cabinet along with the 3 servo drive boards, and 12v power supply.

17
General Mach Discussion / Re: What would cause my limit switches to trip?
« on: December 24, 2012, 01:12:33 PM »
This morning I drove an 8ft ground rod right through the floor and into solid ground beside my mill and attached a ground wire to it. I brought the pedal from my TIG and placed ot the table of the mill so I could just activate it with my hand ( my welder is in a different room, but the pedal reaches). It tried grounding different areas in the control panel as well as the case of the computer and the cable. Still no luck !! I even ran an extension cord to power the computer tower so that the 120v feed for it came from a different area. It seems like the component that is causing problems is my breakout board ( Campbell all in one ) but there's no ground provisions on it. Like I said before, the Breakout board goes nuts when I activate my TIG and when it does it activates my VFD. I'm lost as to what else to try !! ??? ??? ??? ??? ???
Have a Merry Christmas !! :)

18
General Mach Discussion / Re: What would cause my limit switches to trip?
« on: December 23, 2012, 04:33:16 PM »
Well I still have not solve my problem, but here's where I'm at now.
It's not the limit switches causing the problem. When I activate my welder, the breakout board is what is messing up !! I've tried putting a capacitor across the 110v input to the B/O board but that did not help. I'm totally lost, and can't narrow down if the interference is coming from the wires going into the B/O board, or if the interference is air borne.  ??? ???

19
General Mach Discussion / Re: What would cause my limit switches to trip?
« on: November 20, 2012, 06:50:35 AM »
I chased false limit switch triggers for weeks with no success.  My solution was to introduce a 12V DC relay - the six limit switches were wired in series and were in the 12V supply circuit to the relay coil.  The normally closed circuit in the relay was wired to the limit input of my controller.

Works well.  Not the best solution, but for the life of me I couldn't work out what was causing my limit switches to trip - and I tried to be very diagnostic.


That's a good idea, because I know that the cause for my limits to trip would only be a few miliseconds, but not long enough to activete the relay. I guess you could say that the relay is being used as a time delay. It's been a busy week, and hopefully will get time to mess with my mill later this week.

20
General Mach Discussion / Re: What would cause my limit switches to trip?
« on: November 18, 2012, 09:31:53 AM »
Thanks for help. I will try those things mentioned and will post my results.
dan

Pages: « 1 2 3 4 5 6 7 »