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Miling out a 1" hole .500 deep and it measures .894 dia when done.

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hole That is milled is to small
« on: July 27, 2007, 11:13:01 PM »
Im using featurecam 12 and mach3, on a taig with geco drives.
Im trying to figure out if it is the post processor or what?
I left the tool 1 dia at 0, then put in the tool dia of .1875 and still the same thing.
Here is the first bit of g-code if someone could tell me what you think may be the prob.
Hole size is supose to be 1" the milled out part measures .894
The steps are right on and verified.
Any help would be appreciated so i can get started.
thanks!

N15G90
N20G00X0Y0Z0.25F4.0
N25M06T1
N30G43H1
N35S5200M03
N40M07
N45G00X0.935Y0.9877Z1.0F4.0
N50G00Z0.1
N55G01X1.1117Y1.0503Z0.0861F4.0
N60G01X0.935Y0.9877Z0.0723
N65G01X1.1117Y1.0503Z0.0584
N70G01X0.935Y0.9877Z0.0445
N75G01X1.1117Y1.0503Z0.0306
N80G01X0.935Y0.9877Z0.0168
N85G01X1.1117Y1.0503Z0.0029
N90G01X0.935Y0.9877Z-0.011
N95G01X1.1117Y1.0503Z-0.0249
N100G01X1.0543Y0.9678Z-0.0249F8.0
N105G01X1.0555Y0.9698Z-0.0249
N110G01X1.0556Y0.9699Z-0.0249
N115G01X1.0619Y0.995Z-0.0249
N120G01X1.0618Y1.0042Z-0.0249
N125G01X1.0515Y1.0332Z-0.0249
N130G01X1.0461Y1.0399Z-0.0249
N135G01X1.0413Y1.0441Z-0.0249
N140G01X1.0274Y1.052Z-0.0249
N145G01X0.9991Y1.0601Z-0.0249
N150G01X0.9949Y1.0601Z-0.0249
N155G01X0.973Y1.0526Z-0.0249
N160G01X0.9529Y1.0384Z-0.0249
N165G01X0.9501Y1.0353Z-0.0249
N170G01X0.9478Y1.0317Z-0.0249
N175G01X0.9394Y1.0083Z-0.0249
N180G01X0.9392Y0.9894Z-0.0249
N185G01X0.9475Y0.9658Z-0.0249
N190G01X0.9542Y0.9574Z-0.0249
N195G01X0.9642Y0.9482Z-0.0249
N200G01X0.9686Y0.9453Z-0.0249
N205G01X0.9905Y0.9376Z-0.0249
N210G01X1.01Y0.9376Z-0.0249
N215G01X1.0309Y0.9449Z-0.0249
N220G01X1.0376Y0.9493Z-0.0249
N225G01X1.0474Y0.9581Z-0.0249
N230G01X1.0521Y0.9641Z-0.0249
N235G01X1.0543Y0.9678Z-0.0249
N240G01X1.1117Y1.0503Z-0.0249
N245G01X1.1077Y1.0617Z-0.0249
N250G01X1.1038Y1.0679Z-0.0249
N255G01X1.0913Y1.0832Z-0.0249
N260G01X1.0779Y1.0951Z-0.0249
N265G01X1.0518Y1.11Z-0.0249
N270G01X1.0078Y1.1225Z-0.0249
N275G01X0.9852Y1.1226Z-0.0249
N280G01X0.983Y1.1221Z-0.0249
N285G01X0.9442Y1.1087Z-0.0249
N290G01X0.911Y1.0853Z-0.0249
N295G01X0.9003Y1.0733Z-0.0249
N300G01X0.8914Y1.0596Z-0.0249
N305G01X0.8772Y1.02Z-0.0249
N310G01X0.877Y1.0189Z-0.0249
N315G01X0.8767Y0.9793Z-0.0249
N320G01X0.8768Y0.9788Z-0.0249
N325G01X0.8911Y0.9378Z-0.0249
N330G01X0.8953Y0.9311Z-0.0249
N335G01X0.9084Y0.9147Z-0.0249
N340G01X0.9257Y0.8988Z-0.0249
N345G01X0.9407Y0.8889Z-0.0249
N350G01X0.9793Y0.8753Z-0.0249
N355G01X0.9803Y0.8752Z-0.0249
N360G01X1.0198Y0.8752Z-0.0249
N365G01X1.0214Y0.8755Z-0.0249
N370G01X1.0587Y0.8885Z-0.0249
N375G01X1.0758Y0.8996Z-0.0249
N380G01X1.0931Y0.9152Z-0.0249
N385G01X1.1036Y0.9286Z-0.0249
N390G01X1.1115Y0.9417Z-0.0249
N395G01X1.1151Y0.9503Z-0.0249
N400G01X1.1244Y0.9875Z-0.0249
N405G01X1.1242Y1.0144Z-0.0249
N410G01X1.1238Y1.0163Z-0.0249
N415G01X1.1117Y1.0503Z-0.0249

Offline Graham Waterworth

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Re: hole That is milled is to small
« Reply #1 on: August 04, 2007, 02:34:42 PM »
I will take it you are using a 3/16" dia cutter, try this code

It will mill a 1" circle 10 thou deep, see what size it makes it.

Graham.

G20 G40
G00 G90 G43 X0 Y0 Z1.
Z.1
G01 Z-.01 F2.
X.406 F2.
G03 I-.406
G00Z1.
M30

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