Messages

5951

VB and the development of wizards / Re: Printed-circuit board milling

« on: April 25, 2011, 06:20:13 PM »

Mach will ONLY rotate XY (G17)with the G68 command.

(;-) TP

5952

General Mach Discussion / Re: Spindle pulley setup?

« on: April 25, 2011, 06:17:15 PM »

NO that is NOT true.  The motor will always run at the speed Range you set up  lets say you set your VFD so your motor will run from 500 to 6000 rpm when runing in high range. The spindle will also run 500 -6000 rpm.

NOW when you switch to low gear the "motor" will still run in the 500- 6000 rpm range BUT the gearbox (low range at 9:1) slows the spindle down to a range of 55 -666 rpm.

The ratio setting is a divisor that takes the Motor rpm and divides it by 9 as well so your indicted rpm will read correct.  AND the reverse dir check box will allow the Low range to run in the correct direction as the gearbox reverses the direction due to the gears.

(;-) TP

5953

General Mach Discussion / Re: Mach 3 and a Grinder

« on: April 25, 2011, 06:06:58 PM »

It takes a small laser or led beam you probe down untill you break the beam. Then you auto set your Z to zero. 

(;-) TP

5954

General Mach Discussion / Re: Spindle pulley setup?

« on: April 24, 2011, 09:10:11 PM »

The motor itself WILL turn at the same rpm range (;-) The gearbox is what slows down the spindle when in low range.

OR are you saying that you cannot vari the motor speed at all ?

(;-) TP

5955

General Mach Discussion / Re: Spindle pulley setup?

« on: April 24, 2011, 06:23:25 PM »

Only tune the spindle for the pulley that runs at 1:1.  That sets the speed for the motor to run from slow to fastest rpm. Do not addd the ratio leave it at 1

Then just set the pulley for the low gear AND add the ratio of 9 to that pulley only.

(;-) TP

5956

General Mach Discussion / Re: Mach 3 and a Grinder

« on: April 23, 2011, 05:06:06 PM »

OR are you looking to do it live with the spindle running???  Done that as well (;-)

(;-) TP

5957

General Mach Discussion / Re: Engraving text

« on: April 23, 2011, 04:17:33 PM »

OK I have placed the Engraving Subs in the MACH TOOL BOX. There is also a set of instructions on how they work.

As always test them for your application FIRST.

Have Fun (:-) TP

5958

MACH TOOL BOX / SubRoutine : Engraving Leters

« on: April 23, 2011, 04:13:44 PM »

Enclosed is a set of SUB routines that allow letter engraving from

inside of a Gcode program.

To start unZIP the file into the Mach/Subroutines Directory. There

should be 27 files 26 letters and a SPACE .

To start you must update a few #parameters first. These parameters

are persisitant in that Mach retains them even after you shut Mach

down. To change a value you simply use the MDI line .

#500=1.000       (Letter Height)
#501=0.1000     (Clearance Height)
#502=1.000       (Rapid Height)
#503=-0.020      ( Cut Depth )
#504=10             (Plunge Feedrate)
#505=30             ( Cut Feedrate)

To enter these from the MDI you simply type

#500=1.000 #501=0.100 #502=1.000 #503=-0.020 #504=10 #505=30

Then Press enter.

You can also udate them on the fly inside the Gcode Program by

using a call on a line before you want to change the letter height

from 1 to 2".

#500=2

The command structure is the standard Sub call

M98(A.txt)     

This will cut the letter A

M98(C.txt)
M98(A.txt)
M98(T.txt)

This will cut CAT

M98(^.txt)

Will add a space

M98(C.txt)
M98(A.txt)
M98(T.txt)
M98(^.txt)
#500=2
M98(F.txt)
M98(I.txt)
M98(S.txt)
M98(H.txt)
M98(I.txt)
M98(N.txt)
M98(G.txt)

This will cut     CAT FISHING  with the CAT cut at 1" tall and Fishing

cut at 2" tall.


Have Fun, (;-) TP

5959

General Mach Discussion / Re: Spindle pulley setup?

« on: April 23, 2011, 09:53:25 AM »

IF you do as Hood suggested it will work fine. The ratio settings was put there for bridgeport applications where the top side of the gearbox remains at motor speeds all the time.

(;-) TP

5960

General Mach Discussion / Re: Mach 3 and a Grinder

« on: April 23, 2011, 09:47:46 AM »

You do it just like a tool heigth reference. Use a switch like a good tool height setter.

After the refacing  go to the tool height position and reference home that axis to the switch. We do the same thing in plasma work to constantly find a new Z zero.

(;-) TP