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Minimum grip when turning

Running this 6" x 1.875" 6061 slug in a 8" kitty chuck at 250 PSI. The step in the jaws is .2" deep so we can flip the part to avoid witness marks on the OD of the part due to a large chamfer on the...

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Design-Rite XL - Anyone tried these?

Got a catalog from one of our lesser used distributors yesterday - Design-Rite XL. Looks to be fairly standard carbide end mills, drills and the like. Anyone here tried any? Most of what we do is...

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Learning about subroutines

Running a new part on my VMC, where I pocket 16 identical parts out of a plate held in my vice. I use OneCNC xr4 Mill 3D advantage. My Fagor 8040 has a limit of 10000 lines of code, even when I...

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Npsm threads

Hi, Do anyone have a data sheet for these threads that I can have or get. trying internet and have the basic stuff but I require tech. data. Thanks to anyone who helps. GTW

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Demo Program needed, favor requested...

Hi Guys; Well, I have my Clausing slant bed alive and running. And I am cramming G code like a wild man. But i don't have a single resource up here in Alaska... I could sure use a couple programs to...

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CNC toolholder problem!!

Hey All-- I have a quick question/comment for everyone out there. I work in a CNC job shop and we have a vast array of equipment and parts we run. One problem I'm having is piping in coolant to...

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G02 and G90/91 on Dynapath 40M

Hi, I have a 3 axis Dynapath Delta 40M controller on my mill (Webb bed mill). I'm new to machining (JC intro course) and CNC, but I've been programming computers (embedded systems) for over 30 years. I...

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Multiple part workholding

How can i achive both machining several small or medium size square stock parts on the worktable, when i also need to clear the table for other jobs which are too big or otherwise not suitable to hold...

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New Machine Recommendation

I have to turn a 1.5" X 3" rectangular blank of 4140 (about 6" long). Tolerances are not tight (+/- .005") The rectangular shape of the part requires a pretty heavy interrupted cut and the entire...

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vdi toolholder din standard?

anybody have a link to the vdi toolholder din standard? How about the TG series collets standards? For what people are asking for vdi 30 static axial collet chucks thinking of having a go at some...

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Efficiency on CNC milling

Hello, I am writing on these forum hoping to get some help regarding organization in our mold shop. We are only a few people, but we have very good machines (Agie, Jung, Hauser, Mikron, Parpas) and I...

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hp coolant for lights out aluminum turning

In order to "walk away" without having to worry about squirrels nests building up on little ID boring tools, how much coolant pressure are you guys running to keep the boring tools clean? 200 psi? 500...

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Fanuc 0M not powering up

I have a 1986 Fanuc 0MA on a Beaver VC5 which shut down while I was using it today,when I push the green button I can hear the contactor turning on the control but then it trips after about 2 seconds...

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Okuma DNC B

I'm having an issue with our Okuma DNC. Its an OSPU100M control. I'm getting Error 4218 and sometimes 4220, DNC B communication Error. The program will send and as soon as the spindle turns on it...

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How would you cut these scenarios?

I have gotten some flack for how I run a machine. I'd like to throw some scenarios at you, and from your experience, if you could share your feeds, speeds, % engagement, etc. Machine is Haas VF-3,...

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Need to machine through case hardened 8620

Need to modify some existing parts from case hardened 8620. I am not yet sure of the case depth but estimate no more than .010". I am sure the interior is very machinable but the case was tested at...

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Questions about seimens servos / gains settings

Long story short, my Lancer 2000 ERD with Kollmorgan drives is mak'in me nutz. When trying to interpolate a circle it was way off (~0.125), spoke to the folks at mag and they had me adjusting balance...

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Seeking advise milling flange bushing.

So we have a job that come back every month or so. Its basicly 1 inch long by 1 1/2 dia 1018 rond stock. We are doing a flange bushing with it. We mill down 5/8 long to 1 inch dia and do a 0.750 hole...

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Deleted/reinstalled SRAM on Fanuc 21i-B..how come I didn't loose options...

I'd always heard deletion of volatile memory and reinstall SRAM would not return the options parameters... and those would have to be re entered by hand. Not so on my control...they returned just...

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Fanuc Spindle Direction Reversal Param?

18T My chumms kid hit the wrong two buttons on boot up .... :ack2: He's got everything running now, but to go from M3 to M4 now requires an M5. Must be a param for that, but we're not finding it. ???...

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