I bought a set of flycutters on ebay, and I'm pretty sure these are the
ones for which a company posted a special here a year or two ago.
Thought I'd saved that post and/or URL, but cannot fine either.
Does anyone recognize these flycutters and have the URL? Need to buy
some inserts. Here's the auction link:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7540118752&rd=1&sspage name=STRK%3AMEWN%3AIT&rd=1


Thanks,

Jon

Try http://www.rotarytech.com/

Peter

"Jon Anderson" wrote in message
...
I bought a set of flycutters on ebay, and I'm pretty sure these are the
ones for which a company posted a special here a year or two ago. Thought
I'd saved that post and/or URL, but cannot fine either.
Does anyone recognize these flycutters and have the URL? Need to buy some
inserts. Here's the auction link:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7540118752&rd=1&sspage name=STRK%3AMEWN%3AIT&rd=1


Thanks,

Jon

Jon,
Can't say I recognize them...but they are radicaly differentthan any
other fly cutter I've ever seen. I'll ask around & see if I can help
you locate the inserts. A couple of ??? for you though (I'm interested
here):
1.) Do the inserts glue or braze on? I didn't see anyplace for a screw.
2.) Being round...is the cutting edge of the inserts 360 degree
rotatable...for a cutting edge around the entire surface?
3.) Are these things a better roughing cutter than they are for finish
work?
-Wayne-

According to Jon Anderson :
I bought a set of flycutters on ebay, and I'm pretty sure these are the
ones for which a company posted a special here a year or two ago.
Thought I'd saved that post and/or URL, but cannot fine either.
Does anyone recognize these flycutters and have the URL? Need to buy
some inserts. Here's the auction link:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7540118752&rd=1&sspage name=STRK%3AMEWN%3AIT&rd=1

Those look like the Rotary Technologies ones.

Here is their URL:

http://www.rotarytech.com/

Good luck,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

According to :
Jon,
Can't say I recognize them...but they are radicaly differentthan any
other fly cutter I've ever seen. I'll ask around & see if I can help
you locate the inserts. A couple of ??? for you though (I'm interested
here):

Rotary Technologies: The URL for the cutter inserts is:

http://www.rotarytech.com/inserts.ph...sID=7&TypeID=0

1.) Do the inserts glue or braze on? I didn't see anyplace for a screw.

There is a single screw in the center.

2.) Being round...is the cutting edge of the inserts 360 degree
rotatable...for a cutting edge around the entire surface?

Pretty close. IIRC, there are 12 rotary positions in which they
can be mounted, and then you can flip them over for another twelve
surfaces.

Actually -- checking the web site, it depends on the depth of
cut.

Depth of cut :
inch .03 .12 .25
mm .08 3.2 6.3
indexes/insert: 24 12 8

So -- the deeper you cut, the more of the edge you wear, and thus the
more positions it needs to be rotated through before it reaches the next
clean cutting edge for the full depth of cut.

3.) Are these things a better roughing cutter than they are for finish
work?

They can produce a beautiful finish with a sufficiently rigid
machine. But, as you can see from the table from their web page above,
they can be used for up to a 1/4" depth of cut, if roughing is your
game.

But -- before you go overboard about these, look at the prices
for the inserts, and the minimum orders of a box at a time. The 1/2" size
can range from $196.70 (for a box of ten in one grade) down to $53.11
(three per box in another grade). So -- it is around $17.70 -- $19.67
per insert.

If it works for you, and you're getting paid for the work, it
can be worth it.

Enjoy,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

"DoN. Nichols" wrote in message


According to Jon Anderson :
I bought a set of flycutters on ebay, and I'm pretty sure these are the
ones for which a company posted a special here a year or two ago.
Thought I'd saved that post and/or URL, but cannot fine either.
Does anyone recognize these flycutters and have the URL? Need to buy
some inserts. Here's the auction link:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7540118752&rd=1&sspage name=STRK%3AMEWN%3AIT&rd=1


Hi,

These look as though they are a bit tapered to me, although
my eyes are a bit dodgy. I remember reading an article in an old
edition of Model Engineering Workshop, where a contributor
described a simple way of making these from tool steel by tapering
and parting off several from the correct size rod. It looked
effective.
Might work for you.

Regards

Tom.


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Posted via Mailgate.ORG Server - http://www.Mailgate.ORG

On Tue, 06 Sep 2005 21:00:40 -0700, Jon Anderson
wrote:

I bought a set of flycutters on ebay, and I'm pretty sure these are the
ones for which a company posted a special here a year or two ago.
Thought I'd saved that post and/or URL, but cannot fine either.
Does anyone recognize these flycutters and have the URL? Need to buy
some inserts. Here's the auction link:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7540118752&rd=1&sspage name=STRK%3AMEWN%3AIT&rd=1


Thanks,

Jon

Welll Ill be damned. I dont know who the manufacture is..but Ill can
tell you who did the grinding and finish work. It was All Diameter
Grinding in Orange, California.

Ive been giving these things away for years, sans the inserts as I got
several hundred pounds of the rejects...out of round by .0005 etc.

Ask for Marv or Jeff
714-744-1200


Gunner

"Pax Americana is a philosophy. Hardly an empire.
Making sure other people play nice and dont kill each other (and us)
off in job lots is hardly empire building, particularly when you give
them self determination under "play nice" rules.

Think of it as having your older brother knock the **** out of you
for torturing the cat." Gunner

wrote:

1.) Do the inserts glue or braze on? I didn't see anyplace for a screw.

Screw is in the center of the insert.

2.) Being round...is the cutting edge of the inserts 360 degree
rotatable...for a cutting edge around the entire surface?

Yes, one of the reasons I wanted them. Loosen the screw, rotate insert a
bit, carry on.

3.) Are these things a better roughing cutter than they are for finish
work?

Only did a test cut last night, picking the one with the best insert.
Looking at the geometry, I'm not sure just how much roughing they will
take, but they sure give a nice finish. For a less than new insert, I
sure got a dang decent finish.

My interest wasn't for roughing however, I like the near full circle of
the body. These are very well balanced. Ran the big one up to 3400 rpm
and no noticeable vibration at all. Sure wouldn't try that with the type
that use brazed lathe bits!

The single insert almost insures a great finish. With multiple insert
cutters, if one insert sits even a tenth lower than the others, you can
see it in the finish.

Jon

Peter Grey wrote:

Try http://www.rotarytech.com/


Yep, them's the folks. Thanks!!!

Jon

DoN. Nichols wrote:

So -- it is around $17.70 -- $19.67 per insert.


Which works out to less than a buck per index. But I lucked out, turns
out I have the older bodies that don't have the hex star. Since I bought
these strictly for light facing operations at shallow depths of cut, I
can index the inserts only as far as needed to bring a fresh edge into
play, potentially getting even more "indexes". Just got off the phone
with Rotary Tech and they confirmed the current style inserts will work
fine with my holders.

I'd guess one box of inserts will probably last me many years, though it
sure is a steep initial purchase.

Jon

"Jon Anderson" wrote in message
...
snip---

My interest wasn't for roughing however, I like the near full circle of
the body. These are very well balanced. Ran the big one up to 3400 rpm
and no noticeable vibration at all. Sure wouldn't try that with the type
that use brazed lathe bits!

I regularly run my Bridgeport @ 4200 RPM with that setup. No problem.
Even with the tool extended somewhat.

Harold

Harold and Susan Vordos wrote:

I regularly run my Bridgeport @ 4200 RPM with that setup. No problem.
Even with the tool extended somewhat.

Most of my flycutters are el cheapo crap I bought 15 years ago. None of
the larger ones can run at that rpm without vibration from being out of
balance. Always intended to do something about that, and just did, by
replacing them!

Jon