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Messages - iMisspell

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1
General Mach Discussion / Re: programming novice (and I mean NOVICE)
« on: November 19, 2016, 09:01:15 PM »
Sorry that this does not answer your questions, but if you haven’t seen it, you might find something useful from it.

https://www.youtube.com/watch?v=sFXniBbgbw0

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General Mach Discussion / Re: Need CNC beginning guide
« on: November 19, 2016, 08:55:08 PM »
start making drawing of one line or a big design in CAD program TO real-time engraving.
That is done with CAM software.

Letting people know your budget will help people suggest software.

Learning how to 'hand' write simple G-Code programs for a milling machine will help you understand how your machine works and how to trouble shoot your CAM generated programs.

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3
I would like to build a little control box; MPG wheel, jog stick, buttons to switch which Mach screen is displayed on computer screen (MDI screen, Program Run, Off-Sets), toggle the "TAB jog pop-out screen", change jog mode, LCD to display Distance To Go and Current Position, misc buttons to set tools - move spindle head to pos to change tool, some LEDs, feed - rapid and spindle overrides, etc..

The control box will be hooked up to a 60x40 router, but i would like to make it portable incase i want to move/use it on another machine.

Right now im running Mach3 (win 7 32bit) and have no plans in the near future to upgrade to Mach4, but do not want to rule that out.

I started to play with an Arduino and created some "Brains" but then came across PoKeys and Opti-PAC.

Right now the PoKeys57 looks like the best, most versatile and already has a Plug-in written Mach.


So whats the best way to approach this ?

Are there any advantages to USB or Ethernet ?

Any info or recommendations would be great full.

- Thanks...

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4
General Mach Discussion /
« on: June 01, 2016, 09:13:25 AM »
Reflecting off the OP, would it be possibule to write G00 script which would use the knee as rapid Z and the quill as "feed" Z ?

Guess you would have to invert the -+ movement in the script depending on "which Z" is moving. But in the end, the tip of the tool will always be correct with the DRO.

Hummm ???

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General Mach Discussion / Re: Homing/limit switches
« on: May 10, 2016, 09:26:25 PM »
When you are having problems with the switches, maybe try and test them with a volt meter to help narrow down where the issue is.
It kind of sounds like there is a loose connection somewhere.
Posting how you have things wired might helps others trouble shoot with you.

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General Mach Discussion /
« on: May 10, 2016, 11:46:46 AM »
Ive thought about the same for home/hobby use.

While talking with acouple of the mechanicals which are hired at work to fix the cnc machines, they all said the same thing. If you put ball screws in and do it right, you should beable to move the table by hand (grabbing the table itself with your hands and movinging it around) with no serveo/steppers motors hooked up. And with that said, i could not image bringing able to use the machine manually after the conversion, the cutter would be moving the table/part where ever it wanted to.

But then again, ive read online a number of people doing this, so who knows.

What ive thought about doing is making a smaller cnc x/y table which would bolt on my mills table and just convert the Z.

Just some food for thought incase it hasnt crossed you mind.

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7
General Mach Discussion /
« on: May 02, 2016, 02:11:05 PM »
Sorry, support was the wrong word.
Updates and bug fixs. Thanks for the direct responce, ger21.

Looked at LinuxCNC a few years ago when i was day dreaming about machines, i run linux (ubuntu) on a headless server at home for close to ten years (think ver 10 was last update) and there desktop along with played around with different linux "flavors" so i have alittle exposore to linux. Mach seams (through reading) more stable and user base supported. Will give LinunxCNC a shot, but as it looks now, Mach will be my choice.

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General Mach Discussion / Life span of Mach3 maintenance/updates ?
« on: May 02, 2016, 11:45:17 AM »
Soon enough ill be buying Mach.
For the last couple weeks ive been playing with Mach3 while waiting for a little 6040 gantry router to be delivered. Delivery should be this week, if so, hopefully by the weekend everything will be working and then soon after that a full Mach license.

So the thought of how long will Mach3 be "supported" has come to mind.

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9
General Mach Discussion / Re: Spindle DC Servo Indexing
« on: April 21, 2016, 09:57:06 PM »
I dont believable servo motors work like that (with steps), in general.
A stepper motor is part of an Open Loop system, you tell the stepper motor to "move" x-amount of steps and then it will stop.
A servo motor is part of a Closed Loop system, you tell the servo to move (and continues to spin) and an encoder reads its movement and sends that info to "something" to work with the info.

More then likely it would work simulare to your last sentence.
When the M6 command (toolchange) is read, the spindle will stop (where ever it wants to stop), then it will slowly spin in-till an encoder (or proxy switch) reads/finds correct point/orientation, then stop again and do a tool change.

Googling Mach3 ATC might help ya out (ATC = Automatic Tool Changer).

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10
General Mach Discussion / Re: Constant pulse generation?
« on: April 21, 2016, 09:35:14 PM »
Set up the 4th axis as a spindle. You'll then need to manually control the actual spindle.
At work i run a commercial cnc lathe which has live spindle tooling on the turret and a sub (2nd) spindle for part chucking; for the live tools we use M13/14 and sub-spindle M203/204.

Will the Mach software let a person write a macro which will in-turn "talk with" a vbscript to mimic something like that ?

Or could a person write a script with a loop in it that will just keep sending ("infinite") steps to the stepper motor in-till told different (could use a feed rate to control the speed) ?


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