Spoil Board

[Will Williamson]

When purchasing MDF for spoil board it comes 61 x 121 inches. Is there a way to cut a new spoil board using CS45 510? I was able to manual program and cut 3 sides but the machine goes into e stop at -.25 .I turned sheet around and cut the other end . It would be nice if the machine could trim it's own spoil board

[Gary Urlacher]

There is a way to do this. I have not ran this myself but when the technician came out to set up my machine,
he showed me this file and did an air cut with it to make sure it worked and it did.

Have a look. It does what you want. It trims the over size sheet to fit in the 5 x 10 table. I also use
a CS45 - 510

Hope it works for you,

Gary

PS, I am trying to attach the file and have never done this on this forum. If it does not work,
email me at gary_u@allstar-show.com and I will send you the nc file.

[Gary Urlacher]

OK, I guess I am not allowed to add a file with an NC extention.
Here is the text from the file. I must add the fact that this file came from
the great people at CNC automation out of Canada.
Great people to work with and very good at representing Thermwood.


Text from file:-
[WINDOW OFF]
( PROGRAM NAME - TABLE_TRIM 5X10.NC )
( DATE, Day-Month-Year - 24-08-05 TIME, Hr:Min - 13:27 )
( THM M40 ?x? TWTC/BAR w THM99+ )
( CNC Automation - 1-800-421-5955 )
( NC code produced by Mastercam Mill v9.xx )
( Licensed to:CNC Automation - CNC-TECH-9D1.PST - 0)

% ************** P R O J E C T N O T E S ***************
%
%
%
% ********************************************************

( TOOL= 302 1/2 STRAIGHT BIT DIA.= .5000 CONTOUR )

( G52 FIXTURE OFFSET REFERENCE )

G00 G70 G40
G80 G90 G10
M49
G990 (RESET OF VARIABLES)
M999 (MACHINE VARIABLES)
G980 (Spoil Board)

SET GZERO=1 (1=G01, 0=G00)

( LOOPIT: 0 = NO, 1 = YES )
SET LOOPIT=0

( Y Table G52 Fix Offset Table )
SET YFIXOFF=99

( Material Thickness )
SET THICK=0.750

( Fixture Height )
SET FIXTURE=0.000

( NOSPACER: 0 = NO, 1 = YES )
SET NOSPACER=1

( ************* CONTROL LOOP ************* )
[ZSHIFT=THICK+FIXTURE] ( !! DO NOT TOUCH !! )

M80L1 ( START OF CONTROL LOOP )
IF [GZERO=1] THEN M48

( Tangency Factor 1-7. default=1 )
G09F1
( Acceleration Factor 800-809. default=800 )
G800

[CLS]
~[PRINT " " ]
~[PRINT " SECURE PART ON TABLE AND PRESS START " ]
~[PRINT " " ]
~[PRINT " PRESS BLOCK STEP MINUS TO END PROGRAM " ]
~[WINDOW ON]
M80L82 ( START OF SCAN LOOP FOR TABLE )
IF M60L63 THEN M81L50 ( CHECK IF BLOCK STEP- IS PRESSED )
IF M60L-61 THEN M81L82 ( RESCAN IF START NOT PRESSED )
[CLS]
~[WINDOW OFF]

( Set G52L* for Y - Fixture Offset Table. )
G52L[YFIXOFF]

M82L10 ( Call Main Program body and Return... )

( *********** END OF PROGRAM ************* )
G40
G990 ( Partial Reset )
G90 G00 Z0 ( Move to Z0 - ABS )
M5 ( Router Off )
IF [LOOPIT=0] THEN M81L51 ( Jump to End )
G90 G00 X0 Y0 ( Move to X0 Y0 -ABS )
M81L1 ( Loop back to Start of Control Loop )

( **** BELOW FOR LOOP=0 **** )
M80L50 ( BLOCK STEP MINUS - Cycle End )
[CLS]
~[WINDOW OFF]
G990 ( Partial Reset )
G90 G00 Z0 ( Move to Z0 - ABS )
M80L51 ( One Time Through )
M51 ( Router Off )
G90 G00 X0 Y0 ( Go to ABS X0 Y0 )
HOME
M02 ( END OF PROGRAM )

( ********** M A I N P R O G R A M ********* )
M80L10 (Label for Main Program)

G90 G70

(TOOL CHANGE T302 1/2 STRAIGHT BIT CONTOUR iOP: 1 )
M5 (Pre-toolchange Stop)
S18000 (Spindle Speed)
T302
M3
G00 X0. Y0.
G00 Z.25
M31 (Check up 2 Speed)
G41
G00 Z.1
G01 Z0. F100.
G01 Y14.4063 Z-.755 F600.
G01 Y59.875
G01 X119.875
G01 Y0.
G01 X0.
G01 Y14.4063
G00 Z.25

( *********** END OF PROGRAM ************* )
M83 ( Return to Control Section )
M02 ( END OF FILE - Safety )

[Gary Urlacher]

One more thing, I must add that you HAVE to have an existing sheet in the table for this to work.
Leave your old spoil board in place and add this using the pop up pins.

You need this for two reasons:
A - to hold the sheet down with vacuum
B - To raise the sheet to be cut up so you do not cut into the aluminum
of the table itself.


Gary

[Ryan Hochgesang]

I believe the issue at hand here is the Tool Change Safety Zone. In order to open up the X axis travel on your machine, you will need to over ride this safety zone by toggling Output 34. The safety zone is designed to keep the router at a safe distance from the table mounted barstyle toolchanger while the machine is cutting. Thermwood DOES NOT recommend and certainly is NOT liable if an operator turns off the toolchange safety and damages result to the machine. Just be sure if doing this, that the "M48" code is used in the top of your part program allowing Feed Control over all moves and that the tool is closely monitored as it moves in the tool changer area.

[Damon Nabors]

We just replaced our first spoilboard and all I could get was a 5x12 sheet here locally. I placed the spoil board on top of the existing spoilboard and went into CN, manually loaded the panel size of 59-15/16 x 119-15/16. Went into the settings and clicked machine to edge of sheet and placed a collar setting of 1/16. I used a 3/8" outline tool and it cut the spoilboard perfectly without any errors. (I did have to remove one of the brackets at the end of the table so the sheet would sit flat, just make sure you get the spacers back as they came off)