Light Machines Company Mill

rexhunt wrote:

Is there a difference between the Intelletek and the Light Machines Corporation mils?

I have no idea. However the cable is only designed to work with the controller photographed on the bottom of this page: build.spaceopera.org/site/reverseenginee...ontroller/index.html

You do have that controller (The only LMC controller I'm aware of), right?

Shannon

sorry i was taking a break during the school holidays

yep that is the controler box that I am using... that could have been quite embarassing

printed on the big PCB inside it should be the revision... I am thinking that I may have a different one or the jumpers inside may be configured differently

on a closer inspection, my controller box has not got a wire guard over the fan... not sure if that means anything though?

hopefully soon i will have a faster machine completely set up to run the software... does it absolutely have to have the 300 odd megabytes of ram?

So, did you ever get anywhere with this?

Shannon

sorry I didnt reply sooner, I had exams...

the control box is a different version which means that I am just going to try it with the old software. So untill I can get the windows based one working and seeing the spectracam thing then I will have to install the dos version we have and dos or win 95.

thanks for all your help all the same,
Rex

Recently acquired 2 machines and a controller box. Installed LCNC on a box last week for my other machine build but since I got these and they are 80% ready to run what a way to learn LCNC!

Anyone have an archive of the cable plans and Linux cnc file. I did find this is there anything else needed but to just rewire a DB25 Cable? And are these pin-outs correct for both lathe and mill's? The lathe has a encoder on the spindle i do not see it on the pin outs.

Parallel port (Male) Controller box cable (Female) Notes
1 22 Enables the spindle
2 6 X Dir
3 21 X Step
4 18 Y Dir
5 20 Y Step
6 5 Z Dir
7 19 Z Step
8 4 Spindle on/off
13 23 ESTOP Warning: May or may not work, if connecting this causes EMC to stop (thinking the button has been pressed at random times), disable it in the stepconf. Placing a 10uf (and possibly much smaller) capacitor in parallel with this signal and grounding it acts as a filter. Problems with this line were resolved using this technique.
14 17 Mill Amp on/off
25 7 GND

Machines.

Wired up the cable figured out what Limit Switches, Spindle, E-stop works but no movement on steppers. I am going to say maybe it is the voltage on the parallel port. Thinking maybe a C26 - OUTPUT BUFFER BOARD may work? Any Ideas?

OK, Sink then Source has me lost??? Please explain! I understand invert the step signals!


How I have it Now on the light machines.

PC EPP - Controller
1 -> 22 Spindle CW (Working Turns On Spindle)
2 -> 6 X DIR
3 -> 21 X Step
4 -> 18 Y Dir
5 -> 20 Y Step
6 -> 5 Z Dir
7 -> 19 Z Step
9 -> 4 Spindle on/off (Working)
10 -> 23 E-stop (Working)
12 -> 13 Home (Invert)
13 -> 24 limit (Invert working)
8 -> 17 Amp Enable
15 -> 11 Cover Motor Switch (Working)
18 -> 7 Ground
20 -> 10 UF Cap to 23 for e-Stop to work (Working)