Messages

11

General Mach Discussion / Re: HELP.........Motor Tuning problem

« on: February 12, 2007, 10:10:58 PM »

how are you measuring that exact over sucha abig distance?

12

General Mach Discussion / Re: PLC relays wont latch

« on: February 12, 2007, 03:51:16 PM »

I didnt fix it, it was a guy called Brian
 Anyway what it was, being a total beginner at MODbus I thought I would have to use the Outputs in Ports and Pins so I had them set up to port 0 pin1 etc. After talking to this guy called Brian I found out that there is no need to set the ports and pins as Mach would talk over MODbus to the PLC and the setting of outputs would be handled by the VB.
 I am planning on writing a few lines for the wiki once I learn a bit more about using a PLC. This will be from a total beginners perspective and wont be of any interest to most people but hopefully it will help people like me (total PLC/MODbus beginners) and point them  in the right direction.
Hood

it ill be handy to me! look forward to seeing it!

13

General Mach Discussion / Re: thc help

« on: February 11, 2007, 08:39:35 PM »

I would still use the thc on 3/16 it will still warp up and down a bit. Getting the best cut quality out of a plasma is dependent on speed, matching your amperage to the material right (use an amperage rating that list the metal your cutting as a mid range) most important is your torch to work distance. If you want to achieve a straight cut (which you really cant) you have to have your torch to work distance as close as possible and consistant. The flame of a plasma torch is like the shape of the flame of a lighter this means that if you have the flame in the right position you will create a concave shape cut, which will be the straightest you can get.

Does anyone here have a plasma that will touch of on the material and set its right hight? Id be intrested to see how you did it!

14

General Mach Discussion / Re: motors gone mad with new computer

« on: February 11, 2007, 08:28:53 PM »

Another option would be to get a PCI parallel port and set that up, but even some of them are low on the volts. Even with a decent port it is best to have an optically isolated breakout anyway. There are lots of them about, I have used PMDX122 in the past and am actually using one in my lathe retro that I am doing at present. I also have another breakout board in this lathe, its from CNC Building Blocks and although I havent used it yet (lathe not finished) it is well made, well thought out and best of all it will take the Index pulse from my encoders and use that for very accurate homing.
Hood

Im liking the pmdx board a lot! price is good too.

15

General Mach Discussion / Re: Hypertherm remote start with hand torch?

« on: February 05, 2007, 07:38:13 PM »

Hi, Xjdubber

So where do you find the manuals on line.

Chip

https://www.hypertherm.com/Xnet/library/DocumentLibrary.jsp

if you go to hypertherm.com click on the library link top right of the page

16

General Mach Discussion / Re: Hypertherm remote start with hand torch?

« on: February 04, 2007, 09:50:59 PM »

Hi, Dave

It's sad miller posts there manuals in PDF's for Free.

Hope you get it going.

Thanks, Chip

So does hypertherm, and IMO Hypertherm beats out any other plasma cutter on the market.

17

General Mach Discussion / Re: minimum computor requirements

« on: January 28, 2007, 04:36:38 PM »

Thats funny, I have it running on a PII 400 with 800 mb's of ram. It Can actually put out 36000 pulses. My Celeron 2.2 would only put out 18000 (there is something wrong with that comp)

18

General Mach Discussion / Re: Hypertherm remote start with hand torch?

« on: January 28, 2007, 03:45:51 PM »

The hypertherm powermax 1000 should have a cnc plug on the back of it, there is 2 pins that will make it start. Ill try and find it for you.

19

General Mach Discussion / Re: How to size motor's to application

« on: January 20, 2007, 07:08:06 PM »

i was thinking something like 4:1 and yeah its the same size as an average bridgeport

20

General Mach Discussion / Re: How to size motor's to application

« on: January 14, 2007, 04:38:19 PM »

Well speed is something im not to concerned about, a mill doesnt really have to run that fast.