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Messages - DaOne

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General Mach Discussion / Re: maxnc driven by mach III
« on: December 26, 2010, 06:46:13 PM »
I had a max nc10. It wasn't a closed loop version. The best thing I did was buy a new driver board and hook it all up. It had much more power, sounded allot better and I knew what I was dealing with. The hardware on the maxnc isn't bad but the electronics was old school. I did have a friend that had a closed loop nc15 and made it work a long time ago with mach. if my memory serves me right he had to disable the encoders.

General Mach Discussion / Re: polished aluminum
« on: December 26, 2010, 06:29:59 PM »
The key factors in a good finish are...

*Rigidity (This is in the machine as well as the tool and the work)
*Speeds and feeds (aluminum loves high speeds and feeds as long as the rigidity is there)
*Chip evacuation (A high helix helps get the chips out of the way so you don't recut them. Recutting chips will kill your finish. Flood coolant and lots of it is a must. We use through spindle coolant when doing finish passes. They aids in getting the cut chips out of the way.
*Harmonics (Every machine will vibrate. This causes chatter. Chatter = bad finish and poor tool life. You need to tune this out of your machine by adjusting the speeds and feeds to get rid of the resonation)
*Cutter geometry (You need to have a high positive rake to give you a good finish from what I have found. We use some exotic variable flute cutters to do this. For a hobby machine I would recommend 3 flute high helix end mills. They will help with harmonics because 2 flutes will more than likely be engaged in the cut. They have good chip evacuation and have the good tool rigidity to evacuation ratio. They also are relatively cost effective.)

Surface finish is a black art. There isn't a one way works for all method. It requires experience and proper equipment. Getting a mirror like finish with a hobby grade machine I feel will be next to imposable. Even with the best equipment it can be a challenge. Most parts we produce go though vibratory tumblers to get the mirror like finish and we use industrial grade Haas CNC machines. I would say stick to multiple progressively finer grits of sandpaper. Wet sand it the best you can and then use a buffing wheel. if you don't have access to a wheel then some good ole mag wheel polish and elbo grease will go a long way.


I have done what you said however I am still having issues. I even tried this on a 2nd computer with the same issues. I am running mach version 3.042.033. Here is where it gets weird. I get the correct wizards (ones for lathe) but when I go into ports and pins I get the mill options tab not the turn options tab. I think its stuck in some sort of hybrid mode. Any suggestions?

Thanks in advance,

Is there a way to make the toolpath display turn mode? I have it set to switch to turn mode in mach (.lset.swf) and I have verified it is in turn mode however the toolpath display is in mill / router mode. Is this the way it should be or is it just me?  How would I go about correcting this problem?

« on: December 21, 2010, 08:57:34 PM »
The issue with zstart being swapped was never an issue. I think he was just looking at it wrong or something? I use radius mode as well and tested the wizard quite a few times in that mode. It worked flawlessly for me. One thing to be aware of. CSS and FPR don't work together. I had my lathe try to start cutting at what seamed like rapid speeds after a few passes. We have also noticed the FPR by itself isn't cutting correctly as well. Just a couple of the many bugs in mach 3 lathe. I am hoping Brian can work his magic someday and fix these issues.

« on: December 21, 2010, 08:29:26 PM »

Yes. I am going to add tool number, rpm/sfm,-css, fpm/fpr and coolant to all of the wizards. Please use my new wizards with caution as they haven't been tested enough by me to consider to be 100% safe. Dan was reporting some issues with diameter mode on the OD Arc3 wizard but I haven't had the time to test it yet.


Works in progress / Re: SwissU - Only in French
« on: December 20, 2010, 05:05:52 PM »
So you cant post this because of the tabs? Maybe you could post the source and I can remake the tabs so the copyright isnt an issue anymore.  I take it this is a flash based screen set?

Brains Development / Re: MPG mode type selector toggle brain
« on: December 17, 2010, 11:27:58 AM »

I will give that a shot. I use Flash CS4 and have been saving the files in the default for that version. Also i thing its false player 10. Computer that's running Mach is a P4 2.4 ghz w/ 1 gig of ram. I am running twin PP on it 25000 Hz. I figured it should be enough to run a 2 axis lathe with a flash screen. What are your thoughts on this?

Thanks again for all your help. I really appreciate it.


VB and the development of wizards / Re: Jog button in a script?
« on: December 17, 2010, 05:43:47 AM »
It may but just adding the doOEMButton call by itself is enough to lock jog.

VB and the development of wizards / Re: Jog button in a script?
« on: December 17, 2010, 05:30:14 AM »
Jogs till I take my finger off the button on the touch screen.

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