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Messages - northray

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General Mach Discussion / Re: Stepper motor size
« on: June 28, 2008, 06:41:09 PM »
Hi Rick,

Thanks for that I will give it a go

General Mach Discussion / Stepper motor size
« on: June 28, 2008, 12:23:56 PM »
Hi all,

I am just finishing the build of my second CNC router but I am having problems with drive to my X axis.

I am using my Nema 23 motor from my smaller machine to drive a 1000mm X 20mm lead screw

The lead screw turns freely by hand over the full travel so there is no bind up

I have put a 2-1 reduction via timing pulleys and I have tried several settings in motor turning but I guess it just is not man enough for the job.

I was thinking of getting a Nema 34 motor but I am not sure if this will be man enough any thoughts on this ?

I am using a routout control box with a 2.5 amp output will this be man enough to drive a larger stepper motor ?

Any ideas on this


General Mach Discussion / Re: Hot key set up
« on: March 15, 2008, 12:36:12 PM »
Hi Hood,

Fresh eyes today I realised I was not using Vcarve to do my design when I did and sent it to Mac3 it cut perfectly.

OK it was a simple design but it worked.

Thanks for all your help ;D



General Mach Discussion / Re: Hot key set up
« on: March 14, 2008, 06:42:48 PM »
Thanks Hood,

Yes that is the same in Lazy Cam but I must have missed the area to set the feed speed.

I will start again tomorrow with a fresh pair of eyes.


General Mach Discussion / Re: Hot key set up
« on: March 14, 2008, 05:02:26 PM »
Thanks for the reply.

I use Lazy Cam to generate the code so I guess I have not set the feed rate correctly,

Can you tell me in what menu this is set.

Thanks once more.


General Mach Discussion / Re: Hot key set up
« on: March 14, 2008, 02:31:06 PM »

Me again I seem to be getting there

I can now cut an item  the only problem I now have is the cutting speed is very slow I can increase the speed slightly using the speed manual control override
on the program run screen but not enough to make it a practical cutting speed

The rapid travel between chains is fine but when it starts to cut it is so slow it is taking ages to cut a simple letter L.

I have tried to set the cut speed but my brain is now on overload having not sorted it out.

Can you please tell me where I am going wrong

Thanks in advance


General Mach Discussion / Re: Hot key set up
« on: March 13, 2008, 05:42:51 PM »
Yet again many thanks for your help.

I am going to fit limit switches as soon as I can as I think it would be better.

XP it will be then my laptop is well under spec and used windows 2000 but I am changing to my PC to run the CNC

Great forum

Thanks again

General Mach Discussion / Re: Hot key set up
« on: March 13, 2008, 03:18:02 PM »

Thanks for that all is OK in this matter now.

I have two more questions that I need help on.

1- My machine has no home or limit switches fitted so how can I set the axis extremes to the table size and z axis
to stop the machine running into the end stops. 

2- Can I run Mac3 on windows XP

Thanks again for your help it is appreciated


General Mach Discussion / Hot key set up
« on: March 12, 2008, 02:26:58 PM »
Hi All,

I am new to CNC and am am having problems in the set up of the DRO's

The tool moves to the right but the DRO counts down the set up says to change the hotkey for the axis jog,

This is done by selecting the Hotkeys in the config Menu.

Now all was OK up to this point but I cannot understand how to change this setting.

I would like to know how this is done.

Thanks in advance


Hi all,
I am very new to CNC and hope to gain a lot from this forum it looks very good.

I am retired after selling my business and have for several years been wood turning and general wood working so decided to have a go with a CNC router it is being delivered today so wait for the screams of frustration as I try to get my head around it all. Regards Ray

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