Messages

2181

FAQs / Re: motors change direction using test programme but will only jog in one direction

« on: November 20, 2017, 02:02:58 AM »

This problem can occur if the LPT parallel port (or motion controller) output is to the newer 3.3Volt TTL standard and the motor drivers are expecting a signal that is to the older 5Volt TTL standard.

Measure the voltage on an axis Direction pin and if the maximum voltage (measured whilst jogging in either direction) is 3.3Volts then that could be the issue. If you are using the computer's LPT parallel port then consider fitting a 5Volt PCI parallel port card but check these details first:  http://www.machsupport.com/forum/index.php/topic,34848.0.html

Tweakie.

2182

G-Code, CAD, and CAM discussions / Re: Cirkles in Mach 3 Problem

« on: November 19, 2017, 11:23:04 AM »

Hi Daniel,

You also need to check your Z axis dimensions and it's placing in the code.
It Is usual to have Z zero as the top surface of the work and your initial cut of X-16 is perhaps a bit steep.

Tweakie.

2183

G-Code, CAD, and CAM discussions / Re: Cirkles in Mach 3 Problem

« on: November 19, 2017, 11:08:20 AM »

Hi Daniel,

In Config. / General Config. change the IJ Mode then regenerate the toolpath.

To avoid this problem all Gcode containing arcs should include the G90.1 or G91.1 as appropriate.

Tweakie.

2184

General Mach Discussion / Re: Alright fellow campers...a frankenstein moment!!

« on: November 18, 2017, 01:47:31 AM »

Hi Bob,

There are a couple of Administrators here that work for Artsoft / NFS but all the Moderators are unpaid and are their own men.

Tweakie.

2185

Feature Requests / Re: Restart Modbus TCP connection

« on: November 15, 2017, 07:31:35 AM »

Hi Uli,

I have a licensed Mach4 set-up on my machine PC but all my production work is still done with Mach3. One day Mach4 will be ready to take over but it will not be today.

Tweakie.

2186

Tangent Corner / Re: Optical Illusion.

« on: November 15, 2017, 06:35:44 AM »

Interesting that the illusion can be reproduced by laser etching.

Tweakie.

2187

General Mach Discussion / Re: Alright fellow campers...a frankenstein moment!!

« on: November 15, 2017, 02:45:31 AM »

Just a suggestion...

I think you need to sort out some of your wiring - each drives supply (+ & -) should be wired directly back to the PSU and not a star and daisy chain as you have at present.

Tweakie.

2188

Show"N"Tell ( What you have made with your CNC machine.) / Re: Constructing a Low Profile Tool Height Setter.

« on: November 15, 2017, 01:34:14 AM »

Hi Leslie,

Sorry but I have absolutely no idea. I have never seen it for sale either so I suspect it went into a propriety system perhaps.

Tweakie.

2189

General Mach Discussion / Re: Alright fellow campers...a frankenstein moment!!

« on: November 14, 2017, 06:54:47 AM »

Hi Halfmill,

It’s an illusive problem and no one solution cures all. When I fitted my VFD the manufacturer’s instructions regarding grounding were well over the top of what was actually required but the fitting of an RFI mains filter and shielded cable between the VFD and spindle also VFD and controller (shields only grounded at one single point and at one end only) was essential.
A couple of years back I did a basic wiring tutorial (for beginners) and this may be what Chaoticone was referring to (a couple of posts back). If it’s of any assistance it is here: https://openbuilds.com/threads/electronics-101.693/

Tweakie.

2190

Feature Requests / Re: Restart Modbus TCP connection

« on: November 14, 2017, 04:12:46 AM »

Although future development of Mach3 has ceased in favour of Mach4 it is far from being Dead. 

Tweakie.