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Messages - chrisinestes

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No worries... You haven't destroyed my idea... I'm 100% sure it's doable, and 99.44% sure I can get it working on my system with some help, and under $200 USD. It's just the details that are giving me troubles.

You're right, though... I didn't define "accurate"... For most doors, I figure a 1" by 1" grid is plenty accurate. So, for the specific door in queue, it's around 500 points. If I need to double the resolution to 0.5" x 0.5" it's around 2000 points.

Thanks for the input,


I've Googled, searched, & read, but what I've found seems to be beyond my technical ability to understand.

I have Mach3, a Soigeneris controller with a Gecko G540 & USB Smoothstepper, and Vectric Aspire for CAD-CAM.

I need to be able to create 3D models of existing wooden door panels that can have varying degrees of warpage so I can bring in to Aspire so I can have an accurate model of the panels in order to V Carve or route a 3D model into the panels.

I see Mach 3 has a digitizing wizard. Will that Mach 3 built-in digitizing wizard and a digitizing probe off ebay get me what I'm after, or do I need something else, too?

Let's say I buy the probe shown in the following link. Where to I plug it in to? The G540? Do I need software other than Aspire?


Hopefully somebody can help me with this.


The faster the feed rate, the faster the acceleration needs to be... That makes sense to me now.

I'll play with the Distance Tolerance when I get caught up on other projects.

Yeah, I know the oscillation is from flex. It's a steel machine, but the 5 HP Perske spindle is pretty heavy, so that's what is limiting my acceleration, especially in the X Axis.

I can bump up the Y acceleration w/o seeing the oscillation... Do the X & Y accelerations need be set to the same value for best CV performance, or might a faster Y acceleration help out?


OK... Here's my report.

Short story: I can get the corner rounding to an acceptable level. I set Stop CV on angles to>89. I have Plasma Mode, Dist Tolerance, and G100 Adaptive NurbsCV unchecked.

More details:

I had my motor accelerations set pretty low. X was at 4.5 in/sec/sec, Y & Z were at 6. I bumped all 3 up to 12. I tried them as fast as 30 in/sec/sec, but I didn't like the oscillations of the spindle due to it's mass & inertia, so I backed them down.

I set the motor speeds to 240 ips. I won't cut anything that quickly, but it does Jog around faster.

My trouble seems to have shown itself when I began to use faster (better) feed rates. It seems the fastest feed rate I can use with my new CV settings is around 60 ips. Faster than that & I start to see some rounding. Maybe I can bump up my accelerations a bit, and use a faster feed rate, and not see the oscillating spindle thing. I'll have to give that a try to see if I can get a better sweet spot. I think I have a better understanding of CV now, and can do some tweaking of settings.

Here's a couple more questions:

Does maximum motor speed affect CV rounding?
Would enabling Dist Tolerance and entering a really small number, like 0.001, allow faster feed rates with little to no rounding?

Anyway, thanks for the help, Gerry!

Thanks, Rich.


General Mach Discussion / A really quick Mach3 XML file question
« on: May 20, 2015, 05:01:30 PM »
Does the xml file contain all of the Mach3 settings for my machine?

So, if I make a backup copy of it before I do some Mach3 tuning for my machine, and I don't like the new settings, can I just reload the old XML file and be back where I started?

Whoops, 2 questions... Sorry!


Thanks Gerry!

I'll make the changes, do some testing, and report back.


Yeah, I know, I know... Another CV post...  ::)

I tried to figure this out myself, but I'm stuck in the mud.

Does anybody have any ideas for me?


General Mach Discussion / Re: This cut is as bad as it gets
« on: May 20, 2015, 03:08:38 PM »
Just throwing this out there...

Your cut looks like the cut I was getting when my supplier mistakenly gave me 5052 alloy aluminum sheet rather than the 6061 T6 alloy I ordered. I was new to cutting aluminum, so for 2 days I was trying to figure out what I was doing wrong. I finally figured out it was the material, not my bit, speeds, & feeds.


Here's the Y & Z axis settings.


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