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Parting Tool Feedback

Eccentric Engineering FoR

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Brian07/08/2013 11:58:37
40 forum posts
1 photos

Has anybody used the Eccentric Engineering paring tool. I'm thinking of going for it but would appreciate any feedback, its not cheep. I have been using their tangential tool for some time and have no problem with the quality of their products, but would like to know if this parting tool performs compared with other tools on the market.

Brian

john kennedy 107/08/2013 12:12:32
avatar
214 forum posts
24 photos

Heard very good reports about this one **LINK** Can't afford one myself. John

David Littlewood07/08/2013 13:08:19
533 forum posts

I would enthusiastically join those John has heard giving good reports about the Q-Cut. I bought one a few years ago, and now I wouldn't use any other type. I've never had a single problem parting off a variety of materials, never needed to use a rear tool post. I have since acquired a larger one of similar pattern for my larger lathe, and that one happily parts off under power cross feed (to my great regret I don't have pxf on my S7).

Though the blade design provides a good rigidity, I think it is the tip geometry which is the really crucial factor, it curls the swarf inwards do it never jams in the cut.

The only time I use any other type is when I'm parting off or grooving tiny parts like micro tubing for O gauge work, when an Interstate Mini-Thin set is the dog's b******s (though a bit expensive).

Remember, the quality is enjoyed long after the pain of the price is forgotten.

David

Edited By David Littlewood on 07/08/2013 13:10:57

Steamer191507/08/2013 13:20:32
avatar
168 forum posts
42 photos

Plus one for the Q-cut. Never a problem on either the Myford or Hardinge.

Steve.

KWIL07/08/2013 14:29:58
3549 forum posts
70 photos

I agree with Q Cut comments, Myford S 7 and Harrison M300, never a problem.

107/08/2013 16:24:00
65 forum posts
1 photos

I would also be very interested in any feedback on the Eccentric parting tool.

I note the enthusiasm for the Greenwood tool and have been put off in the past by the price of it and also the cost of replacement inserts at £9.95 each.

The Eccentric blade appears to be easily resharpenable (is that a word??) so although the initial outlay is similar the running cost should be less.

Jim

David Littlewood07/08/2013 19:29:56
533 forum posts
Posted by Im Indoors. on 07/08/2013 16:24:00:

I note the enthusiasm for the Greenwood tool and have been put off in the past by the price of it and also the cost of replacement inserts at £9.95 each.

Jim

Jim, I understand your concern, but both my Q-cut and its larger brother (like KWIL, S7 and M300) are still on their original tip after 10 years (S7) and 4 years (M300) of admittedly light amateur use, and showing no sign of wearing out.

David

Edited By David Littlewood on 07/08/2013 19:30:15

I.M. OUTAHERE08/08/2013 01:42:40
1468 forum posts
3 photos

Hi All,

I have used their tangential tool holder for a few years and find they work very well and are of good quality .

The parting off tool holder as i see it is nothing more than a tool holder that can be turned upside down and uses a pretty standard cutting tool with a slight concave in the cutting surface , this is better than a flat surface but not as good as the Q CUT  as i think the concave surface is more pronounced on the insert  .
I have read somewhere (maybe this forum  about people cutting a grove into the top of a HSS parting blade to help curl the chip but is it worth the effort ?
 .

If your Chuck is a screw on type you will need to run the tool holder as a rear part off tool as to mount it at the front you run the machine in reverse as the tool is inverted .

I went the way of a tool similar to a Q CUT and run it in the rear toolpost as my machine is a little flimsy .
I used to break into a cold sweat at the mere though of parting off when using the old HSS parting tools but now i don't give it a second thought as the insert curls the chip in on itself so it doesn't jam and a little cutting fluid always helps and no sharpening is needed !
It works on every material i have needed and the only issue i have ever had was with Aluminium as it wanted to stick to the cutting tip ,a little cutting fluid on a small brush and applied to the groove created by the cutting tool fixed this .

 

Ian

Edited By SLOTDRILLER on 08/08/2013 01:52:04

Nobby08/08/2013 10:29:55
avatar
587 forum posts
113 photos

Hi Guys
Home made back parting tool post in action 2" steel
Nobby

parting off

Speedy Builder508/08/2013 10:51:18
2590 forum posts
207 photos

Hi Nobby, That looks like its fair buzzin round, no coolant and with at least 1" overhang. You must have your angles and rakes about right. I made a similar back toolpost for a Boxford which used a modified Myford 7 topslide, and it worked pretty well.

Stub Mandrel08/08/2013 12:28:51
avatar
4315 forum posts
291 photos
1 articles

Mini lathe in action, ten minutes ago.

Parting 1

Parting 2

2" diameter EN1A.

Home made front QCTP toolpost and toolholder using rectangular section 1/16" parting blade (Arc Euro)

Mini lathe modified with roller bearings, and now 3-phase VFD. (the groove to the left of this cut was made using a wider tool and the original DC drive)

No coolant, not even a smear of cutting fluid.

Some noise, but just change teh cutting spead until comfortable.

Neil

Nobby08/08/2013 19:46:55
avatar
587 forum posts
113 photos

Hi Niel , Speedy &Guys
I was using coolant with our usual washing up liquid bottle . Its my age i can remember when they first came out saved using a brush . You cant quite see it I use a drip can. on long cuts

Nobby

mick H08/08/2013 20:22:59
766 forum posts
28 photos

I have had unhappy experiences with a carbide inser cutter which cost a lot of money and so did the inserts that I managed to break regularly. Put it down to poor workmanship if you like but parting off on my Warco 918, which is quite a lightweight machine, has never been a joyful experience. That is until I fitted 3 phase variable speed drive, since when parting off has been an absolute doddle using conventional parting off blades in a front QCTP. Any material cuts at speeds that I would not previously have dreamed off with the old set up. Why there should be such a significant difference I don't know.

Mick

Nobby09/08/2013 10:04:04
avatar
587 forum posts
113 photos

Hi Guys
Parting from the back the tool digs up/out . also the backlash is not an issue
Nobby

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