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Messages - Sooty1986

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1
General Mach Discussion / Unidirectional creep - help
« on: September 06, 2023, 08:33:24 AM »
Never in the years I've used mach3 have I had this issue and not been able to solve it!

Currently I'm trying to run a simple engraver from mach3 via a parallel port to save a friend some cash.

Setup: generic mach3 breakout board, dm556 drive and a nema 23 stepper online Motor.  This is a belt drive machine and the axis I'm having issues with is the y

So far, I've tried every suggested on this forum with no luck, the only thing that works is attaching a uc100 motion controller.  Solves it instantly.

I've tried 2 cheap boards, a spare hg08 board, a cheap usb CNC board. Nothing changes.  I've tried 3 parallel port computers, nope.  Usb port on a laptop and a usb breakout board, nope.

Tried 4 different drivers.
Tried separate power supplies for every component.  Tried earthing a single side of the shielding on all control and motor cables.

Tried changing active low etc in ports and pins, nope.

Go back to parallel port and it's back, the dial indicator on the first movement being correct and as I move back and forward what was 5mm becomes, 4.89, 4.71 and the 0 point grows in one direction as well .

I get perfect movement with a motion controller and I don't know why and its driving me nuts!!

Help, anyone!

2
Post Processors / Re: Vectric post processor for Mach 4 laser operation.
« on: September 17, 2018, 11:42:51 AM »
Hi,

Has mach4 got to the point where you can control a laser without the delay turning the last on and off?  I've never got Mach3 to work without the long delays...

3
Post Processors / Re: DotG post processor for Mach3 Laser operation.
« on: March 27, 2018, 07:45:04 AM »
I really need to start looking at this again.  never got to the point of using the M11/10 commands.  Thank you for the post

4
I have managed to pick up a new machine last month which will be my next project.  Conect Cadet Plus CNC Lathe



I had good success with the Conect 121 and hopefully i can get this one done fairly quickly. 

The model i managed to get has a automatic tool changer which i believe is very similar to the emco tool changers.  It uses a 24v motor (i think).  The motors plastic housing is broken and rather than try to make it work with the standard motor again i will be using a nema 17 stepper motor.  This seem to have worked for people in the past but i will need to figure out how to control it via mach.

The machine is in very good condition and jogs around haply.  Unfortunately the drivers etc are incompatible with any upgrades so they will be removed and replaced with the CNC4YOU digital drivers and HGO8 Bob which i have used before.  I am hoping to retain the power supply and the spindle board that the machine came with.



The spindle board is the biggest mystery, 

ASHE Controls board FX 1500





I have read that this board will accept a PWM signal but that it has to be optically isolated.  I didnt get far with controlling the KBIC controller from mach but i want to try and make this board work in order to save some cash.  If anyone has any info on this board or a way to wire it to my bob without frying everything let me know!  It would be much appreciated.  I have ordered one of the DIYCNC spindle boards which may be usable but i don't know exactly how to wire everything up.

Hopefully will make some progress this week, main thing is figuring out how to connect the spindle board to mach3.

5
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: October 12, 2015, 03:30:12 AM »
Long time since i last updated.  I managed to get the lathe working nicely (still no spindle control via mach3).  Having fun using it for prototype work and have converted another machine since to the same spec.

I now have another Conect lathe with a toolchanger that i will be converting but there are a few things i still have to figure out.  ill start a new build diary with this machine (will probably need your help again Hood!

6
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 19, 2015, 06:47:11 AM »
Have a question for you MC 

http://www.diycnc.co.uk/spindleV4.pdf

Would this spindle board be suitable to use with a KBIC controller?

7
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 18, 2015, 08:01:51 AM »
Also does anyone have the XML configuration file for one of these lathes for Mach3?

8
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 17, 2015, 03:31:21 AM »
Thanks MC

Was i correct to wire the motors in series, since im using a 36v supply and running the motors at 1.5A.  i can see if they will take 2A later but they are only 1A per phase i think

9
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 16, 2015, 03:58:56 PM »
There is movement!  The steppers are wired up and behaving correctly, I think!  The little one is getting a bit warm at idle.  Can still handle it but I'm worried Iv done something wrong

10
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 16, 2015, 04:04:13 AM »
Right i will do that for the next build.  I found an old xbox in the shed and decided it was just the right size!  Everything fits and has good ventilation due to being a gaming console.  I will be fitting some fans on the case to give some through air.

The bit  of mdf is temporary lol





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