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Author Topic: Running mach3 on a chinese 3040z...or should i say not  (Read 4035 times)

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Running mach3 on a chinese 3040z...or should i say not
« on: April 08, 2013, 02:40:36 PM »
I watched the previous owner run the machine flawlessly....I get it home, get it set up, do some air cutting with simple text. All worked fine. Next day I try to run the same simple text test and the cuts are all concentrated to a 1/2" area. I've loaded other codes into it, like a simple square. Same results, all of the results in a small area. The axis all jog fine with the keyboard.  I have no idea what is causing this, but I have a hunch its me....HELP!

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Re: Running mach3 on a chinese 3040z...or should i say not
« Reply #1 on: April 08, 2013, 04:07:51 PM »
Are you possibly opening a different profile?
When you jog the axis does the distance shown in the DRO equal the distance the axis moves?
Hood
Re: Running mach3 on a chinese 3040z...or should i say not
« Reply #2 on: April 08, 2013, 04:25:00 PM »
yes it does jog properly, when i start cycle to cut any file, the servos move very slowly and the cut is confined to a small area
Re: Running mach3 on a chinese 3040z...or should i say not
« Reply #3 on: April 08, 2013, 04:32:09 PM »
Have a look at the code for the metric/imperial. If it hasen't got a code at the start of the program file it might do it in metric so your 1" cut might only move 1mm? I had the same so if there is no code for the G20 or G21 it does the component in the scale the machine was set up in. just a thought
Re: Running mach3 on a chinese 3040z...or should i say not
« Reply #4 on: April 08, 2013, 04:37:30 PM »
The fourth line of code show the dimensions and doesnt say either way.  Ive got everything set in inches VCARVE
Re: Running mach3 on a chinese 3040z...or should i say not
« Reply #5 on: April 08, 2013, 04:47:19 PM »
Hi Mark, OK I'm a basic CNC man and all my programs start by defining the measurements, cancelling any offset to clear the machines and Mach memory from previous jobs. Not sure about your V carve but its probably doing it in metric so 8% full size. I would have thought the machine wants to know somewhere at the start what units its cutting in G20 is imperial and G21 metric. If you try putting in a G20 be careful as it might go sailing of over the stops. Keep one hand on the emergency stop.
Re: Running mach3 on a chinese 3040z...or should i say not
« Reply #6 on: April 08, 2013, 04:57:27 PM »
I just looked at vcarve and it gives me the dimensions in inches.  It does contain G20
Re: Running mach3 on a chinese 3040z...or should i say not
« Reply #7 on: April 08, 2013, 05:00:22 PM »
and mach3 is set in inches
Re: Running mach3 on a chinese 3040z...or should i say not
« Reply #8 on: April 08, 2013, 05:10:51 PM »
very frustrating.  And i know this is a noob thing.
Re: Running mach3 on a chinese 3040z...or should i say not
« Reply #9 on: April 08, 2013, 05:12:54 PM »
Ok at the risk of people laughing at my programing skills, here is a simple program I used to machine the cab side of my steam loco. Its in imperial so have a look. Put it in your machine and see if it cuts in imperial. If it does its something to do with the link from Vcarve'
I'm in the UK so way past my bed time will look in the morning to see your reply. Good luck.
PS you might need to change the tool number to make it work round the corners, say 6mm and please note its over 16" long

g0 g49 g40 g50 g90 g20
m06 t0
m03 s1000
g00 x-8 y4
g41
g00 x-7.5 y3.5
g01 z-0.2 f4
g01 x6.375
g03 x6.875 y4 r0.5
g01 y5.5
g00 z1
g00 x10.25
g01 z-0.2
g01 y 4 f4
g03 x10.75 y3.5 r0.5
g01 x12.125
g01 y2.625
g03 x11.625 y1.750 r0.875
g01 y-0.5
g00 z1
g00 x9.875
g01 z-0.2 f4
g01 y4.250
g03 x9.5 y4.625 r0.375
g01 x8.25
g03 x7.875 y4.25 r0.375
g01 y3.375
g03 x8.25 y3 r0.375
g01 x8.875
g01 y-0.5
g00 z1
g00 x-7 y5
g40
m05