Messages

1

General Mach Discussion / Re: X axis moves half distance

« on: November 20, 2020, 03:16:28 PM »

Thanks forgot the turn options in ports and pins. Unchecked Diameter and checked Radius and now working correct.

Thanks again

2

General Mach Discussion / Re: X axis moves half distance

« on: November 20, 2020, 12:35:04 PM »

Short Update.

I have put together a test bed  of PSU, drivers motors and BOB. All used on a previous build and working when removed.

I have from the distance past a logic tracer. So I dug it out connected up and here is the result

Probe output is 400pulse/sec TTL (5v)

Probing the step pins for both X and Z axis motors move at a steady rate.

When I connect up the PC I get the same problem i.e. the X motor only moves half the expect amount.

Check the output voltage of the parallel port using oscilloscope and it is only 3.6v so could this be the problem?
Scope shows good square wave with 5us pulse.

Spec for the pc:-
Dell OptiPlex GX620
Operating system Windows XP pro 32 bit.
Port used: Onboard parallel port

I've ordered a PCI parallel port to try.

3

General Mach Discussion / X axis moves half distance

« on: November 20, 2020, 08:15:12 AM »

I am setting up a small lathe using windows XP professional and Mach3 R3.043.066. mach3 turn.
I have installed a UC100 Controller'

Drivers are set to 800 micro steps/rev
Leadscrews are 1mm pitch

Mach3 settings:-
Xstep pin 2, X dir pin 3
Zstep pin 4, Zdir pin 5
Motor Tuning in Mach3 800 steps/mm
Velocity 800
Acceleration 50
Step pulse 5 us
Dir pulse 5us

Using the parallel port:-
X and Z dro set to 0
Using MDI - G1 X1 F20 X moves 0.5mm
Using MDI - G1 Z1 F20 Z moves 1mm

Using UC100 controller:-
No change

Swopping motors made no change so I reason motors are Ok

Swopping drivers made no change so I reason drivers are Ok

Change Motor Tuning X axis to 1600 steps /rev in Mach3 and axis moves 1mm
Again changing drivers made no change.

Reset to 800 steps/mm

Change X step pin from 2 to 6
Again no change so I reason the BOB is not at fault

Windows reports Mach3 driver and UC100 are working correctly

Kernal speed 25Hz

Change kernel speed to 60Hz Still no change.

So I assume the motors and drivers are OK and the fault lies within Mach3.

Anyone any advice on how to overcome the problem.
 

4

General Mach Discussion / Re: Can not reinstall Mach3

« on: October 03, 2017, 05:45:17 PM »

Thanks to all who have replied.

I have managed to crack my problem  . After many hours googling and reading up on Windows registry and editing it I decided to bite the bullet and have a look at the registry. Under HKEY_LOCAL_MACHINE > SOFTWARE I found a folder MACH3 with a sub folder UC100. I deleted the MACH3 entry and sub folder. Rebooted the PC and reinstalled Mach3. Bingo! All went as it should and I now have a working Mach3.

So lesson learnt - "DON'T USE CHINESE RIP-OFFS"

5

General Mach Discussion / Re: Can not reinstall Mach3

« on: September 28, 2017, 07:49:41 AM »

I purchased the UC100 on ebay, around £40. I did get the money refunded, so I'm not out of pocket.

My main problem now is getting Mach3 loaded onto the PC. I'm pretty sure that there must be an entry in the registry that is causing the problem, but I'm not very proficient at editing the registry, so unless someone can direct me to where the problem may be I'm pretty stuffed.

6

General Mach Discussion / Re: Can not reinstall Mach3

« on: September 27, 2017, 07:24:27 PM »

I purchased the UC100 because I knew Windows 10 will not run Mach3 on a Parallel port, and when I installed it I did not include the parallel port driver. The advert for the UC100 claimed no driver was required and they supplied a plugin file Mach3.

After trying to reinstall Mach3 I checked my drive and there was a Mach3 folder with two files, 1024.set and 1024.lset. There is also a folder Uninstall with two files, uninstall.dat and uninstall.xml. There was no other files in the Mach3 folder. I have looked at the files using Notepad and with the exception of the xml file they are all in Chinese.

I have downloaded a fresh copy of Mach3 from the Mach downloads, deleted the files and folder in the Mach3 folder, deleted Mach3 folder. Then tried to install Mach3 but still get the same problem.

7

General Mach Discussion / Can not reinstall Mach3

« on: September 27, 2017, 06:46:41 PM »

My workshop PC recently crashed and I have replaced it with a Windows 10 machine with no parallel port. I successfully loaded Mach 3 and dry ran a couple of programs with no problems. Then I foolishly purchased a UC100 via ebay. Guess what, it completely screwed up Mach3 guess I should have known better. Anyway, I uninstalled Mach3 and now can not reinstall it. When I try to install it I get to the screen showing the progress bars and then get the following message:

Unable to create uninstall entry(2) C:\Mach3\1024.lset

Can anyone suggest how I can get Mach3 installed.

Any help much appreciated