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Any road up... Probe info... trip angle and max deflection angle. I know linear movement depends on length of stylii in use - but just to keep it simpler for the moment - what sort of linear measurements are we talking about between a good trip and crunch point? Just trying to get an idea of the range of your different probes.

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General Mach Discussion / Re: probe guard

« on: May 06, 2014, 09:27:35 AM »

Sorry - should've been clearer - steps per from motor tuning for each axis X,Y and Z.

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General Mach Discussion / Re: Odd behavior with probe wiring

« on: May 06, 2014, 09:13:34 AM »

Quote from: greenene on May 06, 2014, 08:30:24 AM

So, I have the new board working by having the input lines jumper in a "pull down" mode. The probe test has a resistor going from +5 to the input line. When this line is grounded, the circuit is active pulled down and triggers an action.

Remember I can't see your wiring so you need to be clear in what you say. Step by step...

Quote from: greenene on May 06, 2014, 08:30:24 AM

So, I have the new board working by having the input lines jumper in a "pull down" mode.

This means you have configured the board to select an on-board resistor between the input pin and GROUND. That's what pull-down means - pull the input down to GROUND with a resistor. Now...

Quote from: greenene on May 06, 2014, 08:30:24 AM

The probe test has a resistor going from +5 to the input line.

I don't know what you mean by "probe test" but if you mean the input pin again and you have a resistor between it and 5V then you're pulling the input UP (correctly) as well as DOWN (incorrectly). This is wrong. It may still work depending on the relative values of the resistors but you're making your system un-stable.

Quote from: greenene on May 06, 2014, 08:30:24 AM

When this line is grounded, the circuit is active pulled down and triggers an action.

If by "line" you again mean the input pin, then this is the correct way to do it. HOWEVER - you should NOT have pull-DOWNs selected.

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General Mach Discussion / Re: probe guard

« on: May 06, 2014, 07:39:05 AM »

Quote from: BR549 on May 05, 2014, 11:44:10 AM

HIYA Ian , Come on over I have a spare room here. The neighbors are already used to a smartA## redneck so you will fit in nicely. You will probably have to get a decent tan thought (;-)

Tan I can do - just as long as I don't have to wear your gimp suit is all...

Moving on - trying to get that out of my head...

Could a few of you guys give me an idea of your steps per (please state imperial or metric) ... ta.

447

General Mach Discussion / Re: Odd behavior with probe wiring

« on: May 06, 2014, 07:33:57 AM »

Quote from: greenene on May 06, 2014, 05:14:17 AM

Now I will make them high so that the probe plate will be wired to the input and the alligator clip will be wire to the tool, which will bring the input pin low.

Which is what I suggested you do back in post #7. Anyway - you got there.

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General Mach Discussion / Re: probe guard

« on: May 05, 2014, 10:37:37 AM »

Don't hold me to any of these - it'll never stand up in court...

Projected cost? don't know at the moment - but FAR FAR less than any decent probe - otherwise what's the point?
expected beta date? no idea.
Size? smaller than a pack of smokes?
will it be packaged, need a enclosure or mounted in the Control Box? In the control box.
What is needed on our end to hook up and implement? a small screwdriver?
Number of Mach3 (Mach4) Inputs used? 1. (not counting your probe - which you have already).
Probe or solid pin? anything you like that generates a probe signal that you don't want benterated.
Calibration? of?
Plugin or vb macro? neither.
Size of tip calculated? don't need it.
Can it be used/adapted for Tool presets? how do you mean? - it's there to stop your probe being crunched - nothing else - if you never do anything that is about to crunch your probe - it'll sit there doing absolutely nothing. you just do with your probe whatever you now do with your probe - however you do it.
5 volt 24 volt? TBD.

Seed money (would that show you true interest)? Unmarked - non-sequential - GBP - large bag of - how kind.
BETTING there is interest, just dont put any money down on that Florida condo yet. Yeah well - you know what they say about the neighbours.

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General Mach Discussion / Re: probe guard

« on: May 05, 2014, 09:22:28 AM »

Quote from: rcaffin on May 05, 2014, 07:14:23 AM

Photos?
Videos?
Techie details?
Enquiring minds want to understand. :-)

Hi Roger

Videos will come later. At the moment I'm testing it with a simulator.

Tech details: I use two microprocessors running in parallel (one wasn't up to handling all three axes at once) to run a 3D math model representation of a probe. It models in real-time what happens AFTER a trip. By modelling WHERE the probe tip is I can compare it with the user defined mechanical limits of the ACTUAL probe and cause a limit to be thrown if necessary. This is why it can do G31 as well as all other moves. As I say - It does this in real-time for each and every step pulse in all 3 dimensions. i.e. it needs to be sh1t hot fast

Quote from: JJWMACHINECO on May 05, 2014, 08:13:03 AM

Ian,

I'm interested, but my probe crunching issues went away when I quit using the probing routine that comes with Mach3 and started using your 2.5D edge and 3D probing routine and the probing options in MachStdMill Professional Edition. I remember you were working on a new Deluxe version, so did you ever finish it? I sure would be interested in trying that also.

http://www.machsupport.com/forum/index.php/topic,4352.160.html

Thanks. Jeff

Hi Jeff

Thanks again for the kind words about my probing software and the interest here. I kinda lost the faith with the probing routines because of some Mach3 issues that were never going to be addressed because of the dev of Mach4 (understandably). Maybe I'll dig it all out at some point and re-visit it - just don't know really because they'd have to be re-done to some extent for Mach4 and at the moment I don't readilly see the info I'd need and there's only so many hours etc....

Ian

450

General Mach Discussion / Re: probe guard

« on: May 05, 2014, 04:56:33 AM »

Hi Roger - I think perhaps you mis-understand me or I'm mis-understanding you perhaps. I'm not asking for proposals on how this could be done - I have a fully working prototype device sat here on my bench being tested as we speak. There's nothing for you to do - no macro programming involved. From your perspective if I produce it as a finished product and you bought one - then you'd just plug it in and go.

BTW - in case I haven't made it clear it works in full 1, 2 or 3 axis moves. However you move your axis(s) with a probe attached - it protects it from crunching.

Ian