Recent Posts

1

General Mach Discussion / Re: Z issues and Gremlins

« Last post by everybodygrown on October 06, 2025, 11:49:02 PM »

Based on your description, the problems are almost certainly not with the Aspire software or the G-code itself, as the program ran perfectly on the "B side" before. All of the problems—unexpected depth changes, sudden X-axis shifts, and depth display errors—point to serious configuration errors or electrical faults in your Mach3 controller setup. Purchasing a Mach3 license will not fix these configuration or hardware issues.

2

General Mach Discussion / Re: Mach 3 settings

« Last post by jubilantsignp on October 06, 2025, 11:42:11 PM »

Set the active offset X and Y values ​​to 0.000. Or better yet, reset the X and Y axes to 0 at the material zero point (front left corner). Mach3 will automatically calculate and update the G54 offset to be correct for this part. Also, check the DRO on the Run Program screen. If the "Job" DRO shows X3.000 when you know your physical tool is at the X0 position of the part, then the G54 offset is active and set incorrectly.

3

Bargain Basement / Denford TriacCNC mill

« Last post by jimthefish on October 05, 2025, 03:32:24 PM »

I have a 1988 Denford Triac CNC bench mill for sale, Its run on Mach 3 software. I've been using it for 15year+ making parts for model steam trains
The machine will come with full set of tooling, Two Windows 7 computers, compressor for tool removal, lots of cutters, 5 inch Abwood vice, Sub table, Spare stepper drives and motors. Wiring and machine plans and lots more equipment connected to the machine.
Thing to know, The machine is in a workshop at the bottom of my back garden in Birmingham, England and the purchaser will take full responsibility for it removal so suggest you view by appointment before making an offer of over £1500. I will be unable to help with its removal as I'm disabled and 80 years old.

4

Mach4 General Discussion / Re: Note book page numbers

« Last post by BRIAN@PES on October 03, 2025, 06:02:26 AM »

Hi Bill
Many thanks for your help
Regards Brian

5

General Mach Discussion / Re: Newbie, Limit switch issue

« Last post by varioussip on October 02, 2025, 10:53:51 PM »

Hi BeachCustoms, did you manage to fix the problem? Connecting the positions really requires precision and expert advice when using the AXBB-E.

6

Mach4 General Discussion / Re: Note book page numbers

« Last post by Bill_O on October 02, 2025, 05:24:08 PM »

I am guessing you are referring to the tabs.
You can rename it anything you want as long as that name is not already used.

Bill

7

Mach4 General Discussion / Note book page numbers

« Last post by BRIAN@PES on October 02, 2025, 07:56:39 AM »

Hi
I am having a problem using the mach4 screen editor, when I create a new blank screen set and add a new notebook the first notebook page is not number 1 it is some random number that seems to be carried on from the previous screen set I worked on & all following new pages are incremented from this number.
This is the first time I have used this forum so I hope I have followed the correct procedure.
Many thanks, Brian

8

Third party software and hardware support forums. / Re: STB5100 and spindle control

« Last post by riporeno on October 01, 2025, 02:24:01 PM »

I've just built a new stepper controller, about my tenth stepper or servo controller.

I was getting worried about the age of the computer running my mill, a computer that still has a couple of parallel ports in it.

Time to build something that uses a USB port, so if (when) the old Dell gives up the ghost, I'll be ready.

I used an STB5100 5 axis USB controller, the "blue" one. 

(I actually bought a POKeys 56U as well, but the configuration looks daunting and the physical implementation is .. troublesome.  So I thought I'd take the easy way out.)

The steppers work fine with the STB5100, so I know the basic communication is working.

But I'm unable to get the spindle control pins to do anything at all.  Neither the Enable, AVI nor PWM show anything except zero volts.

Configuration seems easy enough, which is to say, not many settings and most set to the default.

I see two options.  Maybe the board is just plain defective; not too hard to believe with something cheap from China.  Or maybe the default settings are not what's called for.

But randomly .. or sequentially .. trying combinations of ports and pins would drive me crazy.

Does anyone have any suggested settings for this board?

Thanks!

I understand your frustration with the STB.
I had the same problem. After doing a lot of oscilloscope testing, I realized something important was missing...
It's built with separate GNDs, and I connected the 5V GND to the 24V GND.
That's the only way it works.

9

Third party software and hardware support forums. / Re: STB5100 and spindle control

« Last post by riporeno on October 01, 2025, 01:43:24 PM »

Hi everyone.
I finished configuring the 0-10V analog output to control the inverter.
Now it seems to be working properly.
I noticed that the components heat up with 24V power, so I'll try powering it with 12V.
Here you can see how it works and the settings for configuring the analog output for the spindle.

https://youtube.com/shorts/BiWNQDFT6hQ?si=G6uzi8tPhexiMVYK

10

Mach4 General Discussion / Re: Tangential Cut

« Last post by Steve Stallings on September 29, 2025, 09:18:01 PM »

Yes, tangential is supported in Mach 4.

Go to the screen for:  Configure > Control  and select the Defaults tab.

Then look down the left side of the screen, the second block is a setting for "Control Mode".

In the drop down list for Control Mode you will find the option for Tangential.