Topics

1

Mach4 General Discussion / Axis Deceleration When Probing

« on: December 19, 2017, 03:47:56 PM »

I am setting up Mach4 for probing and have found that the axis takes a longer time to decelerate to a stop after a probe strike than it does normally (as setup in motor configuration), this is very obvious as you can hear the difference.

I do some milling of circuit boards and want to probe the board with the actual cutter for height mapping. I have done this in Mach3 and it works well but due to the extra deceleration in Mach4 the feedrate needs to be a lot lower to prevent the cutter pushing into the board.

I am using the latest version of Mach4 and the Darwin printer port plugin and have been looking in both Mach4 and Darwin but cannot find any settings that affect this. Does anyone know if there is a separate setting anywhere for the deceleration when probing?

Alastair

2

Mach4 General Discussion / Lua Editor Crashing

« on: February 06, 2017, 05:29:22 PM »

Is anyone else having a problem with the lua editor crashing when debugging? I have been trying to write and debug some scripts but it is very slow and frustrating due to the constant crashes.

I have tested on two different pc's and it crashes for me every time even with a simple piece of test code such as:-

if(1 == 1) then
end

One PC is running Windows Vista 32 bit and has the Darwin Printer Port driver installed.
The other PC is running Windows 10 and does not have Darwin installed.
Both have Mach4 version 4.2.0.3233 installed.

From what I can tell it happens when the debugging session is ending as even with something more complicated it will always reach a break point on the last piece of code that gets executed, assuming of course there are no errors! Also if I terminate the debug session using Shift-F5 it does not crash.

Alastair

3

General Mach Discussion / Help / Advice on Power Supply for Series 1 Interact 1 Conversion

« on: February 07, 2012, 04:46:02 PM »

Having done some research what I am planning to do is:-
Keep the SEM servo motors replacing the encoders with AMT103 encoders from Digikey
Replace the servo drives with CNCDrive DG2S-16035, which I believe replaced the Dugong models
http://www.cncdrive.com/DG2S_16035.html

I am not sure what to do about powering the drives or exactly how large a power supply is required to get reasonable performance. Previously I have built my own power supplies but, these were for smaller machines with stepper motors so voltage and current requirements were less. The plate on the motors says 140V and the datasheet that I found lists continuous stall current at 6.1A. I would also like to run the machine from 230V single phase.

I have done some searching and found details of a few conversions but a lot of these used Gecko drives and limited the power supply to 80V.

Can anyone make any suggestions or point me in the direction of some info?

Thanks
Alastair