Re: G code

Hi,

I'm using Yeager's CNCPRO software and stepper motors.

Shelby

> Not sure which software you are using, but nornmally the home

command

> sends the machine to some known position (which does not have to

be

> 0,0,0 in programs like TurboCNC - which I think you might be using
> from your description of the slow movement during homing). From
> there you move to the work zero using G00 (assuming you have a jig

or

> something to hold the stock in a known position) and then rezero

the

> machine using G91 (I think from the top of my head - I don't have

G

> code manual handy)
>
> HTH
> Nigel
> Shelby:
>
> Actually, the home command (often G74 but is different with

different

> controls) sends the machine to the MACHINE reference. This is

usually set with limit

> switches and a zero/home pulse on the encoder. You would then

send the

> cutter to whatever new zero position you would like and use a G92

command (again

> this can be different with controls) to set the new program zero.

G90=absolute

> position, G91=relative positoning, G00=rapid positioning,

G01=linear

> positioning, G02=clockwise circular positioning, and G03=counte

clockwise circular

> positioning. These are standard G codes for almost every control

out there.

> Other G codes will change from control to control so you would

need to refer to

> the instructiions for your particular controller.
>
> Randy Abernathy
> 4626 Old Stilesboro Road
> Acworth, GA 30101
> Ph / Fax: 770-974-5295
> E-mail: cnc002@a...
>
> I furnish technical support, repair, and other related services

for your

> industrial woodworking machinery. My background as Senior Service

Engineer for the

> SCMI Group for nearly fifteen years with factory training,

combines with my

> extensive background in electronics, mechanics, pneumatics,

electrical and CNC

> machinery to offer you needed support for your machinery.
>
>
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