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I'd just read it in order to avoid going thru life like a wiki-reliant monkey.

Oh, and then I might buy that nifty app too for convenience.

Yes, what he said.

If you don't wanna bother with that, just try doubling the RPM on the final cut and take off 0.3mm. Or run it trochoidal/multiple passes.

You'll still see the tool path in...

Correct. I see this using SC all the time. I run my 5.0mm drills at .17 feed in mild steel with only air coolant. They work and they don't break.

This puts me at odds with the common wisdom at my...

?!

Well, that's... ambitious :D

Yeah, that idea could be meritable. And yes the code would be only one line if you wanted :D (G16 G91 Y3.6 K100)

Hum well that's embarrassing. Recalculating (Vc30 F.15-.20) I end up with 478RPM and F72 as a starting value with potential for around F95. (mm/min) A good HSS drill should be capable of that...

A new Hurco VM10i provides 15hp power and 65nm torque; should be no problem for him to run a 20mm HSS drill at any speed it can take.

None, I had no idea of that, please ignore my ignorance :)

Just spot and boom. The general rule is high speed low feed. For HSS that means low speed lower feed. :D 20mm 40mm deep is cake. Vc ~30, G83 cycle, peck every five millimeters or so (I know that's...

What mhajicek said, I don't understand why you need line numbers. Yes I'll have them at tool changes and no more. When I write macros I always optimize for speed by removing all redundant code bits....

Iscar EC-E7 2 millimeter seven flute end mill, you will not find a better tool, go for a trochoidal path and chances you break it are slim to none. You'll save time with predrilling yes.

A newbie at the material tasked with .3mm tolerances on a 30mm deep pocket in hard PU using a manual Bridgeport mill??!!

RUN!!!

General advice only, I'm a bloody noob too: as you probably know...

This does look just about right. "Follow pecking guide"? Where is it?

As the title says.

I have serious problems getting our small carbide drills to last any significant number of parts at all in stainless because the machine has no through-spindle coolant.

I'm...

Hum. Maybe I should change my location to "Pyongyang, North Korea."

OT but nothing and absolutely nothing smells worse than my colleague's Okuma running plastic daily. I genuinely don't know how he can stand it, I can barely cope and I'm at the other end of the...

No tolerances to speak of for these ones.

Just at a glance you have two N200? Go-to searches forward. On my phone.

Blind 6mm through 8mm sizes 4.6-10mm. conical okay.

Yeah, God forbid you'd lower yourself to use a feature that makes parts spit out at the other end.

Can you link to any specific tool for reference?

I'm not talking very deep holes, I'm not that suicidal. 2xd tops. (Okay maybe 2.5...)

Let me take a specific part. 8mm thick stock, 1450x80mm....

And this is exactly my question.

I am asking if you know of tools that could reasonably effectively drill a hole of a certain diameter and then widen it, perhaps with a spiraling motion, to...

You are missing that all I ask for is the best possible tool to drill a 4.6mm hole and then widen it to 6.0mm. that would help a lot.

I second this. Shims are unreliable by nature.

Check the last post I made in the macro fundamentals thread. It's a complete and working macro for round pockets. You'll need to error trap it more maybe. Plus guess what it's written for and tested...