[FrankMa]

Hello

I want to mill a circular stud D50 into the middle of a plate 200x200.
Can I use Cycl 257 and simply define the row piece diameter as 200,
Then the plate should get surfaced miller around the circular stud!!!

Or is there a better solution??

Regards
Frank

[FDST]

I would recommend that you program the whole thing over a contour pocket (cycl 14).

Have a nice day

[PRESET]

Can I use Cycl 257 and simply define the row piece diameter as 200,

To avoid that the machine stops in all 4 corners, you have to multiply the 200 with 1.414 and then use this as an outer diameter. wink.gif

Or is there a better solution??

As KFT already wrote: use Cycl 14 in combination with Cycl 20 and Cycl 22

0 BEGIN PGM CIRCULAR STUD MM
1 BLK FORM 0.1 Z X-100 Y-100 Z-20
2 BLK FORM 0.2 X+100 Y+100 Z+0
3 TOOL CALL 1 Z S3200 F800
4 L Z+100 R0 FMAX M13
5 CYCL DEF 14.0 CONTOUR
6 CYCL DEF 14.1 CONTOUR LABEL1 /2
7 CYCL DEF 20 CONTOUR-DATA
Q1=-5 ;MILLING DEPTH
Q2=+1 ;PATH-OVERLAPPING
Q3=+0 ;OVERSIZE SIDE
Q4=+0 ;OVERSIZE DEPTH
Q5=+0 ;CORR. SURFACE
Q6=+2 ;SAFETY DISTANCE
Q7=+50 ;SAVE CAVE
Q8=+0 ;ROUNDING RADIUS
Q9=-1 ;DIRECTION OF ROTATION
8 CYCL DEF 22 REAM
Q10=-5 ;FEED-DEPTH
Q11=+300 ;FEED DEPTH.
Q12=+800 ;FEED CLEAR
Q18=+0 ;PRE-REAM-TOOL
Q19=+250 ;FEED WEAVING
Q208=+99999 ;FEED PULLBACK
9 M99
10 M30
11 LBL 1
12 L X+25 Y+0 RL
13 CC X+0 Y+0
14 C X+25 Y+0 DR-
15 LBL 0
16 LBL 2
17 L X-110 Y-110 RR
18 L Y+110
19 L X+110
20 L Y-110
21 L X-110
22 LBL 0
23 END PGM STUD MM

Good luck
Jürgen