's Centre

[Grumpy John]

Offered to modify 3 centres for , so far I've gone through 2 carbide tips & 3 ceramic tips and I'm still on the first one. These buggers are HARD. Luckily the storeman at work doesn't know what I'm using the tips for :D :D .

[DJ’s Timber]

Looks like neat work Grumpy, do you have a before shot of what they looked like

[Grumpy John]

Yes, I'll post one tomorrow.

[Ashore]

The center's still shiny shouldn't it have a brown nose :D :D :D :D

[Grumpy John]

Looks like neat work Grumpy, do you have a before shot of what they looked like


First one finished, two more to go. Before and after pics enclosed.

[RETIRED]

Thanks John, looking good.

[Grumpy John]

All 3 centres finished, glad I didn't have to pay for the ceramic inserts:D:D. Hope you like them . Sorry the photo's are slightly fuzzy biut I cant use a flash as the shiny finish causes the flash to "wash out" the image and th camera doesn't focus too well under normal indoor lighting.

Cheers
GJ

[DJ’s Timber]

Nice job Grumpy, what's the diam of the main body?

[Grumpy John]

Nice job Grumpy, what's the diam of the main body?

DJ
30 mm diameter. They're stock centres, I think got them from Hafco.

Cheers
GJ

[RETIRED]

Looking good John. Thank you. I will see you at Erns on Sunday.

Bought from Hare and Forbes.

[rsser]

... so why does our esteemed Mod need more clearance on his centres?

[RETIRED]

John, I road tested the big bugger today. BEWWWWDDDDIFUL. Thank you once again.


I answered Erns question at the turnfest but so everybody knows.

With the size and weight of the timber we turn, a normal No2 Morse taper actually bends at the taper where it goes into the quill. We use an adapter to go up to 3 MT.

The only 3 MT centres available are metal working centres. Unfortunately these only come with a point instead of the ring centres.

This is not bad except for one minor problem. They act like a wedge on the end of the log which in most cases is split anyway but they split it further which can get a bit nerve racking when you are removing material to get a flat or curved top. We have had quite a few snap the end and fall out.

A revolving ring centre of a larger type was needed and that is exactly what John has done.

[Grumpy John]

,
Good to see the ceramic tips didn't die in vain, glad the centres worked out so well for you,

cheers
GJ