RETRACTABLE DUST SHOE CONTROL.

[radiola]

Hi Gurus,

How are people controlling their dust shoes on CNC router?

Mine uses an air ram that extends when machining and retracts for tool changes as seen here

I was thinking of tying it to the m03/m04 spindle codes or to the VFD output so that whenever the spindle is on it will throw the shoe down.

Anyone conquer this or will i trail blaze it?

Cheers

Ant

 

[cncnutz]

A couple of ideas spring to mind.
Some VFD's have relays built into them that might be able to be used to operate the dustshoe when the spindle is on.

You can use the M64 / M65 command to operate the dust shoe as needed. Just modify your post processor to add an M64 P? after an M03 or M04 and an M65 P? after an M05. This may be a good option as it give the user the ability to use use MDI to manually operate the dust shoe if needed and you can write your Gcode to operate it or not as needed.

Cheers Peter

 

[radiola]

Hi Peter,

Yes, I came to the conclusion that when the spindle is spindling i want the shoe down. can't think of any exceptions yet. I've got a Huangyang special on it's way in the post and all will be revealed when i actually find out what model they send me (these companies are so fickle with documentation, revisions and models).

I'm thinking perhaps a rocker switch on the Z axis hood to retract it exposing the tool might be handy for checking and setting purposes when the Z axis is right in front of me. Same goes for manual chuck release button on the Z axis in case i need to fiddle or test code.

Cheers for the reply

Ant