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Messages - homebuilt

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1
Mach4 General Discussion / Re: Mach 4 and fusion 360
« on: February 15, 2019, 09:07:51 PM »
Would you recommend anything that might be better or something I can use for comparison Craig?

2
Mach4 General Discussion / Re: Mach 4 and fusion 360
« on: February 15, 2019, 08:47:08 PM »
Hi Craig changed to absolute in arc centre mode but I'm not sure what I'm looking for in the fusion forums to make it work together.

I also have the error " K word given for arc in xy plane" and that's got me stumped also

3
Mach4 General Discussion / Re: Mach 4 and fusion 360
« on: February 15, 2019, 07:53:11 PM »
Hi I've cut and paste the code into the MDI ( not sure if that's the right thing to do and change the g71 to g21 and regenerated the code but in the window it has come up with a strange shape that's not even close to what I was wanting I've attached a photo

4
Mach4 General Discussion / Mach 4 and fusion 360
« on: February 15, 2019, 06:44:32 PM »
Hi guys just wondering if anyone might be able to help.

Fairly new to this but ive got everything up and running in metric motors tuned and accurate etc etc but i make a simple object in fusion 360 do the CAM with toolpaths and save the file.  I import it into MACH 4 and everything is just a huge line or just none existent i cant seam to find anywhere to bring the file into the file into the tool path window like all the videos i have watched and cant for the life of me work out what i have done.

Ive added the fusion file below if it helps its just honestly a 100x100m square with 2 holes in it and its driving me insane

thanks again i love coming onto the forum and learning :)


5
Mach4 General Discussion / Re: Motor Tuning in Mach 4, Very Stuck
« on: January 28, 2019, 02:39:43 AM »
Hi Craig so I've been busy yesterday checking and double checking measurements. And I can confidently say your settings were spot on I managed to get the thing up to 14000 before my heart rate went up and stripped a coupling hahaha so I've taken 20% off and I'm happy there. Boy she moves in still waiting on my new VFD so I can fiddle with it actually cutting but a huge step forward. Mate thanks again

While I have you I've been having a play with fusion 360 and made a simple 200mmX200mm X 10mm box I wanted to cut out around the outside. I've generated the g code and loaded the file into mach pushed everything into the middle and zeroed the DROs and hit the big go button but it just sorts of stutters for a split second the doesn't move. Bit of a long shot but am I missing anything else in this process?

6
Mach4 General Discussion / Re: Motor Tuning in Mach 4, Very Stuck
« on: January 27, 2019, 12:29:56 AM »
HI Craig ive spent the past few hours running various lines of g code and by my measurements x and y are accurate every time, i cant thank you enough for the help i certainly would not have been able to work through it with out you.

On the other note of tuning i have my motors running both x and y lines of code at

7000 velocity
3500 acceleration

it moves well and ive realized the rubber feet im using to the cabinet  have a bit of flex in the so they will go but should i keep pushing? the machine flies around hahaha

also i have changed my homing to 40% but there is next to no movement still, any ideas?

7
Mach4 General Discussion / Re: Motor Tuning in Mach 4, Very Stuck
« on: January 26, 2019, 09:24:15 PM »
well i had some lunch and had some time to think and tried it again and bingo its bang on 100mm in the X and Y axis and i have no idea as i didnt change anything so that has me stumped.....

also just a quick question when i press "ref all" all 3 axis barley move to the home switches any idea what i might have done

8
Mach4 General Discussion / Re: Motor Tuning in Mach 4, Very Stuck
« on: January 26, 2019, 07:50:24 PM »
Hi Craig you mentioning quadrature rings a bell, in the ESS settings under motors i had changed the settings from step/dir to quad a few days ago and forgot about it.

I changed it back to step/dir and ran g0 x100 again and got 93mm am heading in the right direction and i pulled to controllers out again they are 100% in 2000

thanks again for your help

9
Mach4 General Discussion / Re: Motor Tuning in Mach 4, Very Stuck
« on: January 26, 2019, 07:11:07 PM »
Hi Craig can confirm i did have the dip switches wrong (working in a small cabinet under the CNC)

So i pulled the stepper motor controllers out and changed them to 2000 and re run g0 x100 and its moves 25mm not 100?

 :o

10
Mach4 General Discussion / Re: Motor Tuning in Mach 4, Very Stuck
« on: January 26, 2019, 06:17:05 PM »
Hi Craig thanks for helping me i really appreciate it.

I've put 400 with 2500 and 250 and punched on g0 x100 and its moved 63mm

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