[mactec54]

Hi donl517

Here are 2 simple sprial programs one starts in the centre the other starts on the outside
this is for a 6inch dia with a 2'' cutter/face mill

Just change the code in the header/program start to suit your machine

If you want one for a job give me the dia & cutter size & I will do one for you

[Neal]

I haven't studied your program as yet but on the first read thru I see line number 27:
N27G03 X+R9 Y+R8 R+R7

The R+R7 should be in the form R0+R7
This may or may not be the only issue. I'll look at it further later.

Neal

[donl517]

Neal,

I tried changing it to R0, still doesn't like it.

One other question on line 21 in .00077 a constant?

Thanks,
Don

[donl517]

Hi donl517

Here are 2 simple sprial programs one starts in the centre the other starts on the outside
this is for a 6inch dia with a 2'' cutter/face mill

Just change the code in the header/program start to suit your machine

If you want one for a job give me the dia & cutter size & I will do one for you

mactec54,

Thanks for the info, but I'm working on getting my post processor to output this code. I can get line segments out of it now but that causes large files that have no edit value.

Don

[donl517]

I worked on this some more this morning and I got the code below to work, however the spiral was cut in G2 instead of G3 and the machine got real jerky as the spiral got bigger. It doesn't seem to want to use this macro unless the origin is X0 Y0.

Don

Block skip was on

N2O100(Small Objects - Inches.3dm)
N3G70
N4G17G40G80G90G0E01
N5(Hole Pocketing)
N6T16M6(Diameter = 0.5 Length = 4)
N7G0X0.125Y0.S4583M3
N8G43Z0.25H16
N10G00
N11G01Z0.025F60.
N12G17
N13G03Z-0.044I-0.125J0.
N14Z-0.113I-0.125J0.
N15Z-0.181I-0.125J0.
N16Z-0.25I-0.125J0.
N17#CLEAR
/N18G0 G90 G80 G40 G49
/N19S1800 M3 M7
N20G0 G90 X0 Y0
/N21H1 Z.1
/N22G1 Z-.25
N23#V7=0
N24#:LOOP
N25#V7=V7+1
N26#IF V7>=360 THEN V7=0
N27#V1=V1+.00077
N28#V2=SIN (V7)*V1
N29#V3=COS(V7)*V1
N30#R9=V2
N31#R8=V3
N32#R7=V1
N33G03 X+R9 Y+R8 R+R7
N34#IF V1<2. THEN GOTO :LOOP
N35X-0.75Y0.001I-0.75J0.001R0.75
N36X0.75Y-0.001I0.75J-0.001R0.75
N37G01X0.125Y0.
N38X0.
N39G00Z0.25
N40G80M09
N41G53Z0H0
N42G53X0Y10.
N43G40X0Y10.Z0E0H0
N44T16M6(Diameter = 0.5 Length = 4)
N45M30