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My new lathe a Warco 918

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JasonB17/11/2019 16:42:45
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If it's anything like mine then the last digit jump in 0.0005" steps

Martin Hamilton 117/11/2019 16:50:39
148 forum posts

Both my Mitutoyo & M&W both jump in 0.0005" steps as well.

Ian P17/11/2019 16:54:26
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Posted by JasonB on 17/11/2019 16:42:45:

If it's anything like mine then the last digit jump in 0.0005" steps

Oh, that's disappointing then. I hoped it might have the full compliment of digits, not that I would have expected to have that much more accuracy, but it helps to interpret the readings better.

I know there are calipers available that display to 0.0001mm but they are not cheap. I bought a Starrett caliper in the 90's that had a miniature bargraph (with 9 segments) after the usual 0.00mm, unfortunately it was addicted to batteries and later became intermittent.

Ian P

Ron Laden17/11/2019 19:02:04
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Hi Ian,

Its a standard Digimatic with the 0.0005" steps on the last digit as Jason and Martin said.

Ron

Trevor Wells01/12/2019 18:41:37
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The warco 918 is a good old lathe but has its weaknesses one of which is the compound but the mod for this is well worth doing to stiffen up the toolpost. Ive also converted mine to a treadmill motor which works brilliantly,also the Dro. 2018-01-17 12.44.24.jpg

Ron Laden02/12/2019 04:37:18
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Sounds good Trevor, I am certainly happy with mine. The previous owner had done a number of mods which are well engineered so I was lucky. The only thing I have added is a digital readout for the spindle speed.

Ron

Edited By Ron Laden on 02/12/2019 04:40:09

Ron Laden07/12/2019 08:21:57
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Anyone use the carbide threading inserts..? to be honest I didnt know they existed until I came across them yesterday. I was looking at some internal and external inserts in 60 and 55 degree, I really like the idea of them and fancy getting some but I need to see if a 8mm or 10mm shank tool holder is available as 10mm is the max I can go with and dont know yet if they come down that small.

ega07/12/2019 10:57:28
1380 forum posts
113 photos

There was an article by Harold Hall in MEW some time ago.

I have a Chinese 10mm holder marked SNR0010K11.

Vic07/12/2019 11:18:29
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Posted by Ron Laden on 07/12/2019 08:21:57:

Anyone use the carbide threading inserts..? to be honest I didnt know they existed until I came across them yesterday. I was looking at some internal and external inserts in 60 and 55 degree, I really like the idea of them and fancy getting some but I need to see if a 8mm or 10mm shank tool holder is available as 10mm is the max I can go with and dont know yet if they come down that small.

Do you have the original four way tool post for your 918? If so you can go up a lot bigger than 10mm. The last tool holder I got for my 8 x 14 lathe was a 16mm. I trimmed a couple of mm off the bottom on the mill and the tool is permanently on centre height using inserts.

ega07/12/2019 14:12:22
1380 forum posts
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PS If you are feeling flush, Greenwood Tools have a range of holders from 10mm centre height.

Ron Laden08/12/2019 07:39:20
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1537 forum posts
262 photos

I wonder what the Banggood threading insert holders would be like..? they do quite a range for both internal and external threading.

I have never used Banggood and I wouldnt use them for the inserts but I would have thought the holders should be half decent..?

jimmy b08/12/2019 08:02:01
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I get my threading inserts from HERE

Jim

Tony Pratt 108/12/2019 08:39:06
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Posted by Ron Laden on 08/12/2019 07:39:20:

I wonder what the Banggood threading insert holders would be like..? they do quite a range for both internal and external threading.

I have never used Banggood and I wouldnt use them for the inserts but I would have thought the holders should be half decent..?

They are OK'ish, not the best but worth a punt, plenty of reviews on Youtube.

Tony

Ron Laden08/12/2019 09:57:56
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1537 forum posts
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Thanks Guys, I have just ordered a 10mm holder so I will see what arrives, at a fiver it wont be the end of the world if its not up to much.

Ega, I think its the same part number as yours.

ega08/12/2019 11:01:07
1380 forum posts
113 photos
Posted by Ron Laden on 08/12/2019 09:57:56:

Thanks Guys, I have just ordered a 10mm holder so I will see what arrives, at a fiver it wont be the end of the world if its not up to much.

Ega, I think its the same part number as yours.

Ron

My feeling is that the part number is standard and not peculiar to any one manufacturer.

I hope you will let us know how you get on with this.

Ron Laden15/12/2019 07:18:59
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1537 forum posts
262 photos

Impressed with the GT insert, I turned up a pair of larger pivot steel spacers for the loco which need a good surface finish so I used the GT for the finishing cuts, very good.

I will get some on order I was given the one I tried this morning.

Edited By Ron Laden on 15/12/2019 07:21:50

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