Messages

8021

General Mach Discussion / Re: Need Help with Stepper Motor Driver - New User

« on: December 21, 2009, 05:42:53 PM »

Hi Harsh,

It is always a wise move to use an active breakout board which opto isolates your input and output signals from the PC parallel port, just in case anything goes wrong - It can save the life of your PC.

I took a look at the manual but on one page it says DP4 should be ON for step and direction pulse input and on another page it says it should be OFF for step and direction pulse input. The whole document is quite confusing so I understand your problem.

However, I think this controller will work OK with Mach and as soon as I get time I will draw a connection diagram of how I would connect this up.

Tweakie.

8022

General Mach Discussion / Re: This might be useful to anyone chasing an intermitent fault and stop grey ha

« on: December 21, 2009, 01:05:02 PM »

I was only trying to help!

You helped me Bruce - thank you.

Tweakie.

8023

Third party software and hardware support forums. / Converting Units of Measurement.

« on: December 21, 2009, 04:40:03 AM »

A handy little program which will convert most units of measurement is available for free download here:-

http://joshmadison.com/software/convert-for-windows/

I have not tested all conversions for accuracy but the ones I have used are spot-on. Thought this may be of interest to others.

Tweakie.

8024

JetCam screen designer / Re: JetCam screen designer/editor.

« on: December 20, 2009, 07:25:00 AM »

Is there a version of JetCam available that will allow saving a .set file, commercial or otherwise.

In a word 'no'. ( please prove me wrong someone ) 

Tweakie.

8025

General Mach Discussion / Re: router drive bars

« on: December 20, 2009, 07:01:24 AM »

I'm using nema 23 277 oz. would I need a reduction?

I think that only you can decide that. If you could obtain a torque gauge to measure your required axis drive torque, then say multiply it by 2. If this figure is less than your available 277oz you should be OK without a reduction.

Perhaps others may have a better guideline than this.

Tweakie.

8026

General Mach Discussion / Re: Z axis cutting too deep

« on: December 20, 2009, 06:52:38 AM »

Another possibility that may be worth investigating is that the tool is moving in it's collet.

Tweakie.

8027

General Mach Discussion / Re: Laser for Cutting PCB Solder Paste Stencil

« on: December 20, 2009, 02:27:47 AM »

Hi Brian,

Seems you have overcome the problem with the Mylar Film melting and are producing usable masks with this material - congratulations on achieving this.

Tweakie.



btw. the software download links on your website don't work.

8028

Tangent Corner / Re: Basic electrical questions

« on: December 19, 2009, 02:59:20 AM »

Russ, Looks like you have discovered the advantages of SSR. 

Tweakie.

8029

Show"N"Tell ( Your Machines) / Re: My CNC pressbrake build

« on: December 19, 2009, 02:56:08 AM »

Excellent pics, this is real engineering.

Hey, looks like your buddy has drawn Wylie Coyote for you on that top sheet. 

Tweakie.

8030

General Mach Discussion / Re: router drive bars

« on: December 18, 2009, 12:00:01 PM »

Mine are attached direct (flex coupling) to the motor shafts.

Tweakie.