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Messages - giannis121

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81
General Mach Discussion / Re: Enable 1-6 Signals. How to innitialize?
« on: June 18, 2009, 01:43:54 AM »
I just want my drives to be dissabled when mach starts.
Then, with a button i will enable them before moving.

82
General Mach Discussion / Enable 1-6 Signals. How to innitialize?
« on: June 17, 2009, 06:19:07 AM »
The enable 1-6 Signals are activated when pressing the Reset button.
How to make them not to be activated when Reseting?
Are these outputs being deactivated by the program (by itself) for any reason,
or only by a brain or a button?
If you have any idea, please share it...

83
General Mach Discussion / Re: Non linear axis measurement...
« on: May 28, 2009, 01:30:58 AM »
Guys, thank you for the posts.
Very helpfull.
Finally i did something like you describe.

a=getuserdro(1000) 'At a user DRO i place the value in degrees
a=(3.14*a)/180 'i convert the degrees to radians (while the Tan function works with radians)
b=Tan(a)*730 'multiply the Tan by the bracket length
code "G0 X" &b ' Move to the new point

Works perfect!
Thank you.

Giannis

84
General Mach Discussion / Re: Non linear axis measurement...
« on: May 27, 2009, 05:30:13 AM »
Yes, the pinion stays at the same position and the bracket lengthens.

I agree with your calculations, it is the definition of tan(a).

My problem is how mach will move, showing at a DRO the real angle...

85
General Mach Discussion / Non linear axis measurement...
« on: May 27, 2009, 02:46:26 AM »
This might be a strange post, but if you have any ideas, please share them.

I have constucted a rotating bracket (see the attached schematic).
The movement is not given on the rotation axis (red dot),
but by a gear-pinion sytem at the edge of the bracket.

I want to measure degrees at this axis.
The movement method causes non linear measurement.
As the bracket goes to the edges of the pinion,
i need to travel more for the same change on degrees.

Can i touch the measuring system?
Or can you think any way to solve this problem, without changing the moving method?

Giannis

86
PoKeys / Re: More than 20 outputs with pokeys & mach?
« on: February 13, 2009, 04:30:59 AM »
Finaly i did the following:

I use 3 outputs to control 3 "select" relays.
The rest 17 outputs control 17 "set" relays.
Its something like multiplexing the outputs.

So, now i have 17x3=51 outputs controled by mach.
But as you understand, i can use only 17 relays of each selected set separatelly.
I just categorized my outputs to sets that will not be used together, and thats it!

Below you will find a draft schematic how i conected the relays.

87
General Mach Discussion / Re: When Homing limit switches do not work...(?)
« on: February 02, 2009, 01:36:46 AM »
Thank you guys!
It is clear now...

88
General Mach Discussion / Re: When Homing limit switches do not work...(?)
« on: February 01, 2009, 01:05:22 PM »
I understand.
But what will happen if a home switch is broken (or if for some rason won't work) ?
So, i think it is important.
Can this check be done with a brain?

89
PoKeys / Re: More than 20 outputs with pokeys & mach?
« on: January 31, 2009, 01:46:20 AM »
OK.
I had a talk with Art and he told me that i can have more than 20 outputs
by modifing the pokeys plugin.
For sure i can say that i cannot touch it.
Can somebody do that for me?
There will be reward. Its something i need.
Await your response.

90
General Mach Discussion / When Homing limit switches do not work...(?)
« on: January 27, 2009, 08:47:26 AM »
I can see that while homing, the limit switches do not work.
Why is that?
Is there any specific setting about that?
The homes and the limit switches are in different input in my machine.

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