Messages

2331

General Mach Discussion / Re: Problems with movement with Large program loaded

« on: December 16, 2006, 01:55:39 PM »

How much ram have you in your computer?

Graham

2332

General Mach Discussion / Re: iso file for test

« on: December 15, 2006, 05:56:16 PM »

The file looks fine, just change the extension to .tap or .txt and Mach will load and run it.

Graham.

2333

Modbus / Re: Using Mod I/O and building screens

« on: December 15, 2006, 05:35:35 PM »

It depends on what you are using to do the task.

If all this is done using a button click or an M command macro then the VB behind the button or in the M macro can do this.  It can fire the output and then turn on your LED, or wait for the input to trigger and turn on the LED.

If the input is turned on by an outside control that Mach did not start then the code has to go in the macropump, then Mach will run the macropump vb code about 20 times a second and check the inputs and do what ever your code tell it to do.

Graham.

2334

Modbus / Re: Using Mod I/O and building screens

« on: December 15, 2006, 03:58:56 PM »

If you want the LED to reflect the input without you clicking something then the code has to run in the MacroPump.

Graham.

2335

General Mach Discussion / Re: LINKS UPDATE ( PLEASE SUBMIT YOUR LINK)

« on: December 15, 2006, 04:04:37 AM »

go on then, done deal. 

Graham.

2336

General Mach Discussion / Re: Spindle timing/index

« on: December 15, 2006, 03:58:53 AM »

My machine uses a latch.

I set up a macro to do spindle index.

I have to fire the solenoid, creep the spindle round and kill the motor when the switch on the solenoid triggers.  its a bit faffy to set up and get the timing right but when its set it works without a fault.

I use it for tool change index too.

I don't know how it would work with back bore cycle, I do them with long hand code.

Graham.

2337

General Mach Discussion / Re: LINKS UPDATE ( PLEASE SUBMIT YOUR LINK)

« on: December 15, 2006, 03:22:02 AM »

Hi Benny,

I am surprised to see there is no category in the links for tooling and materials suppliers.  Could these be added? 

Graham.

2338

General Mach Discussion / Re: motor tuning

« on: December 14, 2006, 07:39:08 AM »

You can calculate the spindle speed using this formula :-

In imperial measuments.

Alum, Brass, Copper, Plastics = 200ft/min
Mild steel                           = 100ft/min
Alloy steel                          = 80ft/min
Stainless Steel                    = 40ft/min
Titanium                            = 30ft/min
High tensile alloy steels        = 15ft/min

RPM =      S(ft/min)
         --------------------------
         0.2618* Cutter Dia

So in plastic with a 1/8 cutter

RPM =     200
         ----------------
        0.2618*.125

RPM = 6116

Graham.

2339

G-Code, CAD, and CAM discussions / Re: Help converting Gerber/eagle soldermask to G-Code

« on: December 14, 2006, 04:16:29 AM »

If you use the M8/M9 coolant commands to turn on/off your dispenser you should be able to get your cam post to turn on the coolant on every z down and turn off on the  z up command.

Graham.

2340

G-Code, CAD, and CAM discussions / Re: Zero Radius Arc

« on: December 14, 2006, 03:59:53 AM »

I looks to me like you generated the code with a tool radius the same size as your internal rads.

re-generate the code using a smaller dia cutter

e.g. If your smallest rad is .250 then use a .125 dia cutter then your I and J will have values other than zero.

Your second problem may be mach is set to ABS I & J when it should be INC I & J, or the other way round.  You can change this in the Config.


Graham.