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Messages - idahoan

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1
General Mach Discussion / Re: Trouble with soft limits, slow zone
« on: March 23, 2015, 09:04:24 AM »
I had the same issue on my knee mill after I upgraded to servos; 1" just wasn't enough space for Mach to slow the motor down from full speed. It would work fine on a slow jog gut not at full rapid. Changed the slow zone to 1.5" problem solved.

Dave

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Modbus / ModIO Helo for New User
« on: August 24, 2014, 11:31:07 AM »
Let me start by saying that this is all new to me and I’m not a programmer or computer wiz; just a machinist.

I have been working with my new ModIO that I purchased from Peter Homann. I have it all wired into my system and talking to the PC. I have successfully managed to get my MPG working along with two selector switches for axis selection and jog resolution using a simple brain. Also I have a functioning feed rate override pot.

What I haven’t been able to do it to get one (or any) of the outputs to turn on and flash an indicator lamp. When I first started working with the ModIO I was using (I guess) the legacy interface in Mach. I was able to create a brain that would flash the lamp at .5 sec. intervals when the cycle start lamp was press.

After I moved to the plug-in which has the analog and MPG support built in. I have not for the life of me been able to get the outputs to work again. At this time it is doing everything I want except for driving a couple of lamps.

So I guess I’m looking for a little help from someone who knows much more about this than I.

One other question is using the legacy interface the ModIO display would work and show the status etc. but with the plug-in the display is blank?

Thanks for any help you may be able to offer,
Dave


3
General Mach Discussion / Re: Question On MPG
« on: December 04, 2013, 07:43:00 PM »
Thanks for the information Hood,

Good point about the 4 pos. switch with one position used for continuous jog.

Dave

4
General Mach Discussion / Re: Question On MPG
« on: December 04, 2013, 03:37:07 PM »
Hi Hood

Thanks for the information; now to take it one step further what would be the best option it implement the manual selector switches to MACH3; Brains, or is there a better or different way?

One last question for now; if I have a selector switch an say it is set on the X axis, will attempting to change the axis using the mouse be ignored? I’m just wondering how the manual switch will play with the software one.

Thinking out loud here; would the axis and step resolution switches need to be momentary push buttons or will a rotary selector switch be ok? I guess this would depend on the answer to the previous question.


Thanks again,
Dave

5
General Mach Discussion / Question On MPG
« on: December 03, 2013, 07:52:03 PM »
Hi all

I’m trying to resurrect a project which stalled about 3 years ago due to other commitments; this is to update the control system on my knee mill.
I was able to get my old AhHa system running under MACH3 and have been using it that way for the last 3 years.

I have a question on the MPG I plan to install in my new control panel. If the ratio of my Z axis drive is different than X and Y (or down the road the A axis) will I be able to use just the one MPG?
My X and Y drives are currently running 2:1 pulleys with a 5tpi screw but the Z which I haven’t installed yet is 1:1 and a 5tpi screw.

I would also like to install manual selector switches for the axis selection (X, Y, Z, A,) and jog resolution; (.01”, .001”, .0001”) is this doable? I will be using a PMDX 125 board.

Thanks for any help you can give me; I will have plenty more questions down the road.

Dave

6
Hi all

My name is Dave and I live in Boise, Idaho USA.
I'm new to Mach but not to CNC or Machinning; I have a Bridgeport clone that I converted about 15 years ago with an AhHa system. I recently got my AaHa box running with Mach using a Homen breakout board. I have been working on a new control box and will be switching over to servos when I get it done; hopefully this winter. I have been able to make some chips this weekend and things are going pretty well. I do have some questions that I will post in the general section.

Dave (idahoan)

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