'nother oopsy

[wizer]

Had a cheeky hour after work in the workshop. Thought I'd rough out a piece of beech. It took a while to get it round and then past some heavy cracking. But generally I was liking the shape. Flipped it round and started hollowing out the middle when ooopsy, got a catch and off it went like a pin ball around the workshop.

](*,)

I take it the only way to save it is a bigger face plate to re-establish the tenon? Coincidently the faceplate fits perfectly in the hole I'd hollowed. :roll: :wink:

 

[Bodrighy]

It looks as though the grain is going right across the tenon in which case it is always going to be a weak point. You might be better off going for a wider base and a ring or face palte.Means a smaller bowl but better than no bowl.

Pete

 

[Dalboy]

Just when you think things are going smoothly. Been there done it hope it missed as it took flying lessons :shock:

 

[big soft moose]

Had a cheeky hour after work in the workshop. Thought I'd rough out a piece of beech. It took a while to get it round and then past some heavy cracking. But generally I was liking the shape. Flipped it round and started hollowing out the middle when ooopsy, got a catch and off it went like a pin ball around the workshop.

](*,)

I take it the only way to save it is a bigger face plate to re-establish the tenon? Coincidently the faceplate fits perfectly in the hole I'd hollowed. :roll: :wink:

you might be able to rechuck it - if you put your chuck in the hole you hollowed and wind it out til it starts to grip - then bring up the tail stock for additional support , this ought to give you enough grip to re turn the tennon ( or to turn a recess instead).

id be inclined to make the tennon ( or spiggot as it is properly known - you arent in flat world now you know ) bigger than last time. - though this will mean reprofiling the outside to a more oval shape.

 

[stevebuk]

i'm sure thats not how richard findley would have shown you :wink:
one day tom men shall land on the moon, keep trying..

 

[DaveL]

i'm sure thats not how richard findley would have shown you :wink:

Just what I was thinking.
I would have put the tail stock centre on the face and hollowed round it, leaving the extra support until most of the inside had been removed.

I hope you manage to rescue the bowl Tom, looks a good bit of timber.

 

[wizer]

The face is only about 5 inches and undercut, so you'd never have got much hollowing done with the tail stock in the way. I didn't actually use the tail stock when shaping the outside, I normally do. However, I was being pretty aggressive with it and it went fine. I think, as Pete says, the spigot was too weak in the green wood.

I may try BSM's idea of expanding into the face and if not I'll probably bin it rather than spend money on another faceplate.

Cheers all

 

[big soft moose]

I may try BSM's idea of expanding into the face and if not I'll probably bin it rather than spend money on another faceplate.

Cheers all

if you do decide to go the faceplate route - rather than buying a bigger one , why not just screw a disc of wood onto the one you've got and use that.

two other ideas that occur are

a) you could make a jam chuck to fit in the hollowed recess and then bring the tailstock up and proceed as per..

and

b) you could sand the bottom flat then turn a disc of scrap wood of suitable dimensions on your face plate , and hot glue this on to the bottom (or gorrila glue for that matter) - then just turn it mounted on this - and at the end part off through the glue joint ( you might want to bring up the tail stock with a tennis ball impaled on your tailcentre for support while parting off so that the bowl doesnt go flying.

in terms of the actual turning it might be worth using a side cutting scraper with light pressure to remove the bulk of the wood , only switching to the gouge and taking light cuts for the half inch.

 

[Bodrighy]

Or plane the tenon off and use a glue chuck?

 

[Richard Findley]

Hi Tom,

I thought you said you were going to use the "step" method from now on??? :wink: BTW, that's the method I use to do it!!

Agressive cuts are fine as long as you are in control of them at all times, otherwise they quickly get out of hand and become catches:

Quite literally!!!! :wink: :lol:

Richard

 

[wizer]

You want excuses? I got excuses

The reason I didn't go for the stepped turning method were three fold. 1. It was green wood 2. It had was a slightly spherical shape. 3. The opening was only 4 inches.

Basically I didn't know how to do the stepped thing with such and enclosed form and I thought I'd be ok with the wood being wet. I think the reason it caught was the tool was blunt. I was trying to hurry up before wifey got home.

I'm off work tomorrow, so I might try some of the ideas listed above.

Cheers guys.