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Author Topic: G73 G83 Mach3Turn  (Read 3805 times)

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G73 G83 Mach3Turn
« on: March 23, 2009, 05:24:09 AM »
I am trying to drill a 1/2" diameter hole through a 1" Diam. X 3" long piece of barstock using Mach3Turn. The G73 cycle is what I need but have tried all of the suggestions I have found on the forum and they do not work. When I run the program Mach3turn does all of the other lines of code and then skips the G73 and goes on with the rest of the program. I am using G73  Z2.9 Q.1 R.1 F2
When I use G83 it works as it should but does not rapid feed back down the hole to where it left off before returning to feed speed (the return to its last position is at F speed which really slows up the process. Could someone write me  the code using G73 to drill a 2.9" deep hole .100" per peck and retracting .100" prior to going back for the next peck of .100"? Thanks for your help. This is the only thing keeping me from running parts at this point.

Offline Hood

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Re: G73 G83 Mach3Turn
« Reply #1 on: March 23, 2009, 05:49:48 AM »
G83X0Z-100Q10.0F0.06R2 is what I used yesterday and it worked fine, rapids both in and out, I wonder if it is because I do all my lathe work in G95 rather than G94 that I am presuming you use..
Hood
Re: G73 G83 Mach3Turn
« Reply #2 on: March 23, 2009, 06:23:55 AM »
Thanks! I am using G90 for absolute mode. I'll try both G94 and G95 tomorrow I have never used them with turbocnc or flashcut before. Do you know what the code would be for the G73 cycle as it would be much faster than the G83?

Offline Hood

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Re: G73 G83 Mach3Turn
« Reply #3 on: March 23, 2009, 07:26:29 AM »
I dont think there is a G73 in Mach, certainly just looked and there only seems to be a G83 macro here.
Hood
Re: G73 G83 Mach3Turn
« Reply #4 on: March 23, 2009, 07:43:24 AM »
That could explain why it doesn't work!  :) G73 is listed and described In the Mach3turn 1.84 manual. and another thread described it in detail  (www.machsupport.com/forum/index.php/topic,838.0.html).

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Re: G73 G83 Mach3Turn
« Reply #5 on: March 23, 2009, 08:18:49 AM »
Lots of things in Turn are supposed to work but dont, Brian is going to be turning his attention (excuse the pun) to Turn next but afraid that has been nearly a year since he first told me that so hopefully it will be before I die ;)
Hood
Re: G73 G83 Mach3Turn
« Reply #6 on: March 23, 2009, 12:30:35 PM »
Not a problem! Once you get used to the various quirks and idiosyncratic behavior it is a great program and I look forward to running our plasma table with it where I can take advantage of all the improvements you guys are currently making on Machmill. Thanks for all the help!  Cheers,  Ray