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I followed your advice about center drill, and it looks like it may have cured the wander problem.
I am interested in your feeds and speeds on the 3FL Fullertons. I have some 1/8 carbide USA 3FL...

The Dormers and OSG: are you using a peck cycle?
The 3 flute carbide drills: wat speeds and feeds do you use?
as well, I have some coolant through drils which I may deploy.
jb

is this a set screw?

Thanks. How deep are you drilling depth/dia ? I am driling 8-20 ratio using peck, but would like to get rid of peck.
JB

Thanks - will try.

also please let me know the operating system you are using. I have XP.

yes by all means, Thanks JB

.006 is .003 per flute. I am using new guhring GT-100 parabolic taper length drills. Not sure what angle they are - think 135.

Not sure what type of collet I am using. Could be an import. I have...

I'm using the slotted mini-nut style, to save space on the table.

....I read the Rego-fix website directions, and they say to clean it and assemble it correctly. I did that, and it seems to cure drill slippage.

Another problem I am having is drill wandering. I...

Anyone know where to get these? I am using a cnc swiss lathe with small Z travel.

I don't think the 8055 has an ethernet connection.
What is "mulit DNC?"
Which OS are you using?
Thanks in advance
JB

Maritool, that is.

It's a 1/8 drill. I am drilling into eco-brass at 1500 and .006, wih G83 and .18 peck. The bit slips in the collet longitudinally. Here is my current understanding, which I gleaned from Rego-fix and...

That's quite impressive. I take it that the optical encoder drives the stepper. How did you make the encoder? Ive decided to just drive hs, ts with two steppers to be in synch.
Thanks for video.

Thank you all for replies - my spam filter was junking the notices. At this point I have decided to drive the hs and ts by two steppers running on the same pulse train. So am setting up identical...

Pls excuse late reply. I am connecting with rs232 serial cable, and running Fagor sw - something like windnc or wincnc The cable is supposedly eied to Fagor specs.

JB

carbide -peck drilling

To get an answer, you should narrow your question by:
-material
-hole depth
-lathe/mill

For example, a 20XD hole can easily be drilled in eco-brass with no coolant and...

This does not seem to work. There seems to be a security lockout by the PC, which runs XP. I tried to eliminate the firewall and open file directories to network access.
Has anyone successfully...

Hello I'm double-dipping here. :)
Here's my issue:
I want to have a stepper/servo motor turning on the tailstock (TS) synchronized with rotation of the lathe headstock (HS).
rpm - 50-100
accuracy...

Hello
I want to have a stepper/servo motor turning on the tailstock (TS) synchronized with rotation of the lathe headstock (HS).
rpm - 50-100
accuracy - not precision, but shouldn't drift over...

I am injecting this here, since it seems related to the thread. I can start new thread if warranted.
I am trying to add a passive encoder to the headstock spindle on a minilathe. It just records...

I saw a letter from Dt. Muller regarding eco-brass, and it recommended speeds of 350 SFM and feeds of .010. Has anyone operated at those speeds? For a 1/8 inch drill, that would be about 10,000 rpm,...

I too am contemplating drilling eco-brass, and wonder if anyone has tried it. I peck drill up to 15xD at 3mm or .12 inch.
anyone?

Harbor Fright has a plasma cutter that gets good reviews.
jb

Dear Al,
Thanks for the idea. Is what you are describing a U channel made up of two L brackets? Its a LULU of an idea! (couldn't resist.)
If I understand it, the item will be constrained on 3...

This is on a cnc machine, but the issue is general - avoiding burrs on long wobblers.

I am parting a ss303 3/8 rod with 1/8 hole down center and length of 2.5 inches beyond the parting plane....

as easily as posible. :) One way is to take a 1/2 inch section of steel DOM, about an inch long, and weld a steel bar to it. This steel bar then gets trapped underneath the cutoff tool in the...

No, its a cms cnc gt27 gang lathe with Fagor 8055 controller. Why?
JB

yes, think it will.
also the de-wobbler is worth a try, I am convinced. In theory, it can be precisely adjusted to be say .050 away fro part when cutoff happens.