Page 248 - CNC Robotics

CNC Robotics

Once converted. the file can be exported as a DXF fil e. The only
problem w ith the DXF file format that Corel Draw creates is that
th e 0 point is in the middle of the page. W hen KCam opens it, the
G-code tak es three quarters of the draw ing outs ide the mac hine's
wo rking area (see Figure 10.24).

...
Figure 10.24
CorelDraw generated
DXFfile opened in " - =-~...~£_- ~
Kearn. -+ I ~ D.'!:J- ..
~ Ho
. <iSlopo "l'IJ
I --+-- t ,~ -
r,.... ~ FW
I c_Fr F>t
- --- --+- NOO2 ~ f)o, """ " <U1
001(t.c... e...-...-.j
~ ,
NOOl G~
NOO5 " 1ll
= = ~
GOO ~me 981 YOOJ "'"
GOO Z.(Dl ;'";O
GCn }(.(DI EIlI1m:».m Z.(Dl l'JO
CGlnlCroII5J2YOl1lel
lGOlX.oo1li1lm;na;s
2G01l<ro&lI.l''rtIIIlCl
l&GlXm; .llIYml....
• Glnl<<<J&VlIYIlOO""
~GOl l<<<JG1D'I'rUIO""
&II)(<<J&~YOnn.
I&ll1JUNYJ"XI',)'"
GCn l<alI'~YQIl.'"
~&ln X_"l5'1'01n'"
6IlIIX«IIe_,..
GOIXflll.)'I!IJJ .....
== ~
liOO>«OI-.VIIJ2ZX1
liOOZ....ze
GCnXfl)t,"voo.llSlZ.(Dl~
GOlxmt~YlJJI0S3
GCn XfI)I M)1JRgJ
(i(IIxmt'tl7'1OO1~
rollUIl51l))YInIG16
._,~~~!~~ ..:J
Z-Icdo Xl V_ l ooII A_ N.. !~~
BIBI?I"J ~I ,oH '***'1'*'1 $I."''-~ ""'~ ~ "'~ ~ C"""••oIf_ I
Fortunately. if this happens you can offset all the G-code from
w ithin KCam to bring the plot within the table. To do this. you w ill
need to move the y-axis position half of the w idth if your or iginal
graphic and move the x- axis over hal f of the length so that y =5
and x= 10. Open the Function dropdown menu and click the Offset
G-code button. Enter 10 for x-axis, 5 for the y-axis and leave the
z-axis at zero. This w ill brin g the plot back to w here yo u want it
(see Figure 10.25).
Another po int to consider is that CorelDraw produces vector art-
work. This format can be imported into your graphic and scaled
without any loss of detail. Raster ima ges. on the other hand. are
bitmaps composed of pi xels, w hich means that as yo u increase the
size of a bitmap yo u begin to lose detail. If you want to use
bitmaps. then import them into a graphic. create a new layer and
238