Messages

1

SmoothStepper USB / How to hook-up a manual THC low budget

« on: February 22, 2015, 11:39:29 AM »

I would like to hook-up two push button switches for my torch, one push button for up and one for down. I don't have any room in my input breakout board. I know I need another board and a second parallel port. Not so good for electrical, can some one help me on this?

Ratpackjavascript:void(0);

2

General Mach Discussion / Re: Plasma not cutting smoothly

« on: January 21, 2015, 01:13:14 PM »

Thanks I will defiantly will try to raise it some time today and re calibrate avery thing all over before cutting a test pieces.

Ratpack

3

General Mach Discussion / Re: Plasma not cutting smoothly

« on: January 21, 2015, 11:07:26 AM »

Thank you BR549 I was thinking the same thing, because when I cut 3/8" or 1/2" plate it is not bad only on lighter gauges. So in hand acceleration is a key factor.I will lower this and do more test.

Ratpack

4

General Mach Discussion / Re: Plasma not cutting smoothly

« on: January 21, 2015, 10:55:49 AM »

Well, this is interesting, thanks in advance for helping me. I made this machine all frame is 4" X 4" X 1/4" tubing gantry same. The gantry runs on a rail system. Stepper motors ( Nema motors ) can not move or shake any thing by hand, using a vertical torch from Thermal Dynamic with a rack & pinon the X & Y travels with rack and pinon as well. Using a board from CN4. parreal port. X motor are set at  509.1702372 step per inch/ Velocity 93.6/ Acceleration/ step per 33.17149/ Y is set 526.7068/ Velocity 93.6 /  Acceleration 33.171/ A is a slave for Y set as same as Y. Hope this is good for now.

Ratpack

5

General Mach Discussion / Re: Plasma not cutting smoothly

« on: January 20, 2015, 11:11:29 PM »

I did, using a Thermal-dynamic 101 power source it recommends 1/8" and travel speed  225" per minute on 16 ga. mild steel, but it also says plus or minus 50% lot of good that is.

6

General Mach Discussion / Re: Plasma not cutting smoothly

« on: January 20, 2015, 11:02:00 PM »

I do not have a THC. I keep the torch about 1/8" to 3/16" off the material manual.

7

General Mach Discussion / Re: Plasma not cutting smoothly

« on: January 20, 2015, 10:59:06 PM »

Not to bad on the slag but angel and curves are very jagged.
 

8

General Mach Discussion / Re: Mach3 CNC table Soft Limits configuration

« on: January 20, 2015, 10:09:07 PM »

SStar,
How good is your cut on your travel when cutting circles and angels?

Ratpack

9

General Mach Discussion / Re: Plasma not cutting smoothly

« on: January 20, 2015, 09:36:33 PM »

Hello BR549 thanks for now. My cut on the X lines & Y lines are very nice ( smooth ) but when I cut angels to the left or right of a straight line or a curve it it very jagged. My calibration is good, check X travel asked 1" it travels 1" also Y travel same. Tried to slow fed rate down a bit better ( 45" per minute ) from (96 " )
 
Ratpak

10

General Mach Discussion / Plasma not cutting smoothly

« on: January 20, 2015, 02:04:25 PM »

Hi Guys, I am new to this, I need some help with my plasma can anyone help me? I would like to make cleaner cuts with my machine. Thanks you Ratpack