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Messages - engineerpower

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General Mach Discussion / Code for Belleville-Sprung Tool Change
« on: January 17, 2019, 11:37:39 PM »
Hello again, friends!

Need some advice on coding a macro to execute quick tool changes on my mill with a homebrew power drawbar.

Enco 91002 run by Mach3 via ESS. I have the drawbar under tension with a stack of Belleville springs, and a stationary bolt at the top of the spindle that compresses the stack at full retraction of the z-axis. The mechanics work fine, I just need to figure out how to ignore the Z-home switch the quill trips as it makes the trip up. Other than letting it hit the home switch and resetting via DoOEMButton(1021) or similar, is there an easy way to code a movement to machine coords while ignoring a home switch signal? Is OemButton (150) useful here?

Thanks!

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General Mach Discussion / Re: Reversing DRO Direction
« on: January 02, 2019, 10:50:42 PM »
Vielen dank!

That did it. Had to reverse homing direction and remap my movement hotkeys, but it's performing just the way I was trying to get it...

Mein Fallschirmjäger bruder und Ich in Afghanistan.

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General Mach Discussion / Reversing DRO Direction
« on: January 02, 2019, 10:29:17 AM »
BLUF: I am trying to figure out how to reverse the DRO direction in MACH 3 so that moving the table to the left (tool to the right) results in a positive DRO movement rather than a negative.

Sorry if this as been addressed, but the search functionality is letting me down...

I have an Enco 91002 converted to CNC, running (SolidWorks) to (CamBam) to (Ethernet Smooth Stepper) to (G540). The way it is currently set up a table move left or towards me is a negative movement on the DRO, and right or away from me is a positive movement. I would prefer this to be reversed. I have been able to do this by changing the "scale" for the X and Y to "-1.0", but I would prefer a non-temporary solution. My Z axis behaves fine, down is negative, up is positive.

My first milling experience was on manual machines, first dials then a DRO that behaves like I want. My preference would be that my CNC VMC behaves the same, and my jobs aren't cut rotated 180* on the table.

Haven't seen a setting I can change (other than scale) to do this. Do y'all have the answer, por favor???

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Hey all!

I'm Cameron (33m) from Indiana, USA. I am a mechanical engineer and Director of Engineering for a small machine shop (dangerco.us) that focuses on prototyping and niche-market small-batch production. My personal focus is self-directed learning-by-doing, LEAN in all things, and DFM.

My CNC experience is self-taught on an Enco 91002 I did a scratch conversion to CNC, running Mach 3 on WIN10 to a Gecko 540 via Ethernet SmoothStepper. I run on SolidWorks and mostly CamBam.

10 years into my Army career as an Engineer officer, 3.5 years active, 7 years National Guard. I've been to Australia, Indonesia, Japan, Afghanistan, Kuwait, Kyrgyzstan, but Home is by far the best!


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