WINCNC Programable down force

[synd00d]

Does anyone know the programable down force code. Basicly I want to hook a 3" sanding disc to lower then stay down for a couple of seconds then retract and move on to next location. This code from dyna torch machine uses M100 what is the code for WinCNC

[Torchhead]

Programmable Down Force? Like the downforce on a Vinyl cutter? In grams or ounces of force?

Do you mean a programmable delay?

[WayneHill]

Doing some engine turning ( aka Jeweling )?

Something spring loaded might work better.

[cut more]

How about using G4 (dwell) then you can set the dwell for however long you want?
What machine do you have with wincnc on it?
Cutmore

[synd00d]

I want to use the programable delay for this application on a practical CNC table. Thank you i will try the dwell, where would i get a spring loaded fitting for the sanding discs?

[Torchhead]

The determining factor is your CAM program. It's pretty easy to add in a dwell time on most post processor so that on every "penup" move (Z moving up) you have the CAM put in a dwell of XX seconds then lift the head. Another way is to open the G-code file in a simple word processor (Notepad will work) and find every Z up move (should all be the same value to the Z rapid height) and use the "Replace" command in the Edit tool to just put a G04 PXX (where XX is in seconds)

So a line like

G01 Z-.050 F40
G00 Z 1.00

Would look like

G01 Z-.050 F40 (go down to cut height at a feedrate of 40IPM))
G04 P3 (pause for 3 seconds)
G00 Z 1.00 (go back to 1 in above the material)

Obviously your code will not look exactly like that. If you have a more sophisticated editor that will let you Find and Replace one line with several it will be easier.

[synd00d]

Thank you very much for the help, dwell worked perfectly. In bobcad I modified the drill cycle to include the dwell for each point.