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  #1  
Old Sun 16 August 2009, 20:05
lumberjack_jeff
Just call me: Jeff #31
 
Montesano, WA
United States of America
surfacing a table in EMC

For those of you who have surfaced your table using EMC, do you have any g code you could share?

I tried using the following which was generated by a script made by Switcher on CNCzone.

Code:
G90
Z0.25 F100.0
X0.0 Y0.0 F100.0
Z-0.12 F25.0
G91 F50.0
X99
Y0.625
X-99
Y0.625
X99
Y0.625
.... repeat the last two lines 77 times

EMC didn't like it.
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  #2  
Old Sun 16 August 2009, 23:06
Jayson
Just call me: Jayson #18
 
Horsham
Australia
Hi Jeff,

when I faced my table I used the generator located at the following link

http://wiki.linuxcnc.org/cgi-bin/emc...ode_Generators

Scroll down until you find "facing Software"

Worked a treat for me.

Jayson.
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  #3  
Old Mon 17 August 2009, 00:24
lumberjack_jeff
Just call me: Jeff #31
 
Montesano, WA
United States of America
Thank you so much for this Jayson! What a cool link!
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  #4  
Old Mon 31 August 2009, 21:27
lumberjack_jeff
Just call me: Jeff #31
 
Montesano, WA
United States of America
FWIW, a variant of this code

Code:
% 
 
G17 
 
#1=0 (X1) 
#2=0.375 (Y1) 
#3=98 (X2) 
#4=49.125 (finished Y area minus cutter radius) 
#5=0  
 
G0 Z [0.5] 
G0 X #1 Y [#2 + #5] 
 
G1 X #1 Y [#2 + #5] Z0 F150 (set up feed) 
 
O101 WHILE [#5 LT [#4-#2]] 
 
G1 X #1 Y [#2 + #5] Z0  
G1 X #3 Y [#2 + #5] Z0 
 
G0 Z [0.5] 
 
#5 = [#5 + .65] (increments for the next reverse cut) 
 
G0 Y [#2 + #5] 
G1 Z0 
G1 X #1 
G0 z [0.5] 
 
#5 = [#5+.65] ( increments for the next cut) 
O101 ENDWHILE 
 
 
G1 X #1 Y [#4 ] Z0  
G1 X #3 Y [#4 ] Z0 
 
G0 Z [0.5] 
G0 X #1 
 
%
...was suggested to me. I tweaked it for my table size, the depth of cut I wanted, the z-clearance I felt necessary, the speeds at which I comfortably cut and to make it bidirectional (surfacing with a 3/4" bit is a tedious affair when the cutter only mills one way.)
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  #5  
Old Tue 01 September 2009, 04:46
sailfl
Just call me: Nils #12
 
Winter Park, FL
United States of America
Jeff,

An Onsrud 91-000 1.25" Spoilboard surfacing cutter makes quick work of resurfacing the top. The price is reasonable.
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