Messages

2481

General Mach Discussion / Re: Spindle orientation

« on: September 23, 2006, 05:05:30 AM »

Hi pabeader,

this looks very interesting, I will give this a go when I have finished installing the new spindle motor and inverter.

Thanks for that.

Graham

2482

General Mach Discussion / Re: L commands

« on: September 20, 2006, 12:41:18 AM »

it sound as if you don't have a carriage return on the last line of command

Graham.

e.g.
z1. CR
g28 z0 CR
m99

Make sure its like this

z1. CR
g28 z0 CR
m99 CR
CR

2483

Third party software and hardware support forums. / Re: spindle motor

« on: September 19, 2006, 05:45:33 PM »

Try here

Graham.

http://www.e-motorsonline.com/index.php

2484

General Mach Discussion / Re: L commands

« on: September 19, 2006, 05:42:58 PM »

Where are you trying to use the 'L' command,

M98 P1000 L10 should work.

Graham.

2485

General Mach Discussion / Re: Spindle orientation

« on: September 18, 2006, 06:15:55 PM »

The spindle is driven by a mach3 controlled vari drive,  the spindle is locked by a small disc brake operated by a solenoid, if I had one or more proxy sensors set could I look for them with a macro and when found fire the solenoid and kill the spindle.  The spindle would be running at its minimum speed 25 rpm.

Any thoughts.

Graham.

2486

General Mach Discussion / Re: Spindle orientation

« on: September 18, 2006, 06:01:58 PM »

I see, can't argue with that.  It was not a criticism just a thought.

Graham.

2487

General Mach Discussion / Re: Spindle orientation

« on: September 18, 2006, 05:51:12 PM »

Hi Chad,

are you sure it was for the spindle,  some of the more modern lathes use servos for the turret.

anyway thanks for your input, I hope your wrong.

Graham.

2488

General Mach Discussion / Spindle orientation

« on: September 18, 2006, 05:30:16 PM »

Hi all,

can any body give me any idea how to orientate a lathe spindle and lock it in position, a bit like a tool changer on a mill dose.  The motor is DC and has a index pulse for surface speed.  I have worked out how to lock the spindle but how do I get it to stop in the same place every time.  On industrial mills you can call M19 to orientate the spindle and then it is locked magnetically I think.

All ideas welcome, but the simpler the better.

Graham.

2489

Tangent Corner / Re: Denford Orac problem

« on: August 16, 2006, 06:15:09 PM »

Hi,

have a look at the chuck it may be warn and only gripping on the back of the jaws (see picture)

You can check this with a feeler gauge while gripping a hard lump of stock, a milling cutter shank would work well

make sure the jaw is gripping all the way along the stock and see if you can get the feeler in the front edge between the jaws and the stock.

if you can then its new chuck time.

Graham.

2490

Tangent Corner / Re: Denford Orac problem

« on: August 16, 2006, 04:14:45 AM »

Hi,

is the tool a 90 degree approch type.  e.g.  if you touch the tool on the face of one of the chuck jaws, can you see the back edge of the tip touching the jaw.

for CNC turning you are best using 93 to 95 degree approch tools.  Or you can lock the tool in at a very slight angle so the back edge of the tip is clear of the work.

Graham.