Messages

811

General Mach Discussion / Re: Help! G41 doesn't work for multiple offsets!

« on: September 12, 2019, 08:58:47 PM »

I know I am running Mach3 and it works here just fine as per the example given.

If you are talking about the tool path on screen then yes the screen gets screwed up but not the machine tool path.

812

Mach4 General Discussion / Re: 3D Probe Tool 1, Tool Height Setter, Tool Offset, Unsure on setup.

« on: September 08, 2019, 08:50:07 PM »

If you have an ER collet type spindle that has no fixed end position then this is NOT for you.

If you have a quick change spindle e.g. BT30, CAT40 or similar then the end of the spindle is fixed and tool holders will always go back in the same place.

The first thing to do is work out the distance from the home position in Z to the top of the table using the end of the spindle and store that in a user #number.

To do this remove any tool holder from the spindle, home the Z axis then using a 100mm/4" slip block (most machines will not touch the spindle end on the table) feel the slip block in under the spindle. The Z axis machine DRO plus the slip block length is the figure you want.

Then you measure the distance from the end of the spindle probe to the end of the spindle and store that in another #number.

To do this put a clock in a mag base and touch the probe end on the clock, find the lowest point, zero the clock and z axis then move the machine to touch the end of the spindle on the clock until it reads zero. Read the distance from the z axis DRO.

Then you measure the distance from the spindle end to the top of the tool setter and store that.

With these 3 values you can work out tool lengths and set fixtures.

This way every tool has a length offset even the probe and once set and recorded they can be selected and its known length put into the offset and used without needing to be re-measured.

813

General Mach Discussion / Re: mach3 turn threading issue

« on: September 08, 2019, 07:59:49 PM »

if you turn the spindle slowly by hand and watch the index LED on the diagnostic screen do you see a pulse?

814

General Mach Discussion / Re: Help! G41 doesn't work for multiple offsets!

« on: September 08, 2019, 07:46:14 PM »

Cancel the offset with G40 then change work offset then call G41 again.

E.g.

G21 G40 G00 G99
T0101
G54 G00 G43 X0 Y0 Z25.
Z-5.
G01 G41 D1 X12. F25.
G03 I-12.
G01 G40 X0
G00 Z25.
G56 X0 Y0
Z-5.
G01 G41 X12. F25.
G03 I-12.
G01 G40 X0
G00 Z25.
M30

815

G-Code, CAD, and CAM discussions / Re: Best Cam for 2 axis lathe?

« on: August 27, 2019, 04:10:02 PM »

As long as you export the profile of the part as DXF most CAM systems will do simple 2 axis lathe, look at CamBam its very low cost.

816

Machscreen Screen Designer / Re: MachScreen releases

« on: August 26, 2019, 09:53:47 AM »

Hi Klaus,

are the copied/moved bitmaps updated in the screenset to reflect the new folder location?

817

Mach3 and G-Rex / Re: rotational axis set up

« on: August 11, 2019, 08:16:42 PM »

Not sure what you are doing, is this the spindle drive motor, if so the drive needs a signal to tell it what speed to run at, this may be a PWM or a 0-10V input.

Mach3/4 can do PWM but to do 0-10V you will need a PWM to analogue card, you then need an output pin assigned in motor outputs then in motor tuning the spindle has to be set for step of 1000 and a velocity of 1500 or what frequency you need this will be output when commanded to the drive to tell it what speed to run at.

Or are you trying to do something else?

818

Works in progress / Simple Colourful lathe Screen Set Mach3 Only

« on: July 21, 2019, 04:54:04 PM »

The horizontal screen set is now available to download in the finished screen section.

https://www.machsupport.com/forum/index.php?topic=41385.msg271329#msg271329

819

Finished Screens / New Simple Lathe Screen Set

« on: July 11, 2019, 02:10:21 PM »

Here you are have a play with this new Mach3 only Lathe Screen set.

Its got big buttons so will work with touchscreens and is colourful, this is because it was originally for education use but I was asked to make a general version because people liked it.

The only things that will change are if bugs are found in it.  Nothing will be added or changed that is up to you to do.

Its not like the standard lathe set, if you click the same green option button some of the screens cycle around different options, Position, Offset and Automatic all do this and the last screen is remembered.

That's it, see what you think.

Update:-

I have added the portrait version now so you can turn your monitor on its side.

820

Works in progress / Re: Coming soon to a lathe near you

« on: June 22, 2019, 08:38:07 AM »

A few more screen shots