Bowl From Board experiment WIP

[loz]

OK,

So I thought i might give this whole Bowl from a board idea a go !

So i used a 3 mil parting tool to plunge cut into the board at 4 equal marks, at approx 45 degrees.

See how they stack up and i have enough overhang to glue - turns out i have just shy of an inch so should be plenty !

Glue her up - my clamps only reached doen a few layers, so the whole lot was weighted from above with a dumbell overnight !

This morning with clamps removed.

I hop eto get some more done on this tonight or tommorow.

Hope it wont explode on me !

Loz

 

[John. B]

Loz, this ought to be interesting.
Ply is not really the first choice to turn normally, and then usually only the very best quality birch.
waiting for the next pics with great anticipation.

John. B

 

[Paul.J]

Looks an interesting experiment Loz,but as John says these sort of pieces you use best Birch multi ply,which as more layers and is glued together better.It looks like you have used WPB Ply which isn't the best and does delaminate pretty easy so just be very careful when turning as some parts might fly off.

 

[Jenx]

Be really interesting to see what comes out of that in the end, Loz !
Interesting Experiment !

Good luck - lets hope it works well ! 8) 8)

 

[Bodrighy]

I've seen afew things made from plywood and they were very effective. Not tried it myself so look forward to this experiment with interest

Pete

 

[loz]

It could either be the biggest wood explosion my workshop has seen - or turn out quite nice

Lets just say i'll be wearing a full face mask, plus my leather welding apron over my smock !

I think im going to have to turn a seperate "finished " foot with a recess first and then glue this on, only just occured to me i wont be able to reverse mount this to finish the current base as i have to swing my head around to get it on !


Loz

 

[loz]

Looks an interesting experiment Loz,but as John says these sort of pieces you use best Birch multi ply,which as more layers and is glued together better.It looks like you have used WPB Ply which isn't the best and does delaminate pretty easy so just be very careful when turning as some parts might fly off.

The only ply i had was FREE Ply ;-)

I'f things start getting too hairy i'll stop.

 

[wizer]

very interesting Loz. As you say, it's an experiment, you don't want to try this first with a plank of pink ivory

Very interested in the outcome as I have quite a few boards that could get this treatment.

 

[mikec]

Very interested in the outcome Loz I have a plank of beautiful quilted maple that I have had for about 5 years, just haven't found a project that deserves it.

This would be a very economical use of premium timber.

Mike C

 

[Lightweeder]

Clever idea. Fingers crossed - not while you're turning though 8) 8)

 

[loz]

OK,

So iv'e tonight only turned a foot - again from Ply, with a recessed spigot for me to grab. Not too pretty, but functional, Currently glued up - so ill add a pic in the am.

Its raised the bottom some, being the same dia as the existing base, so will make the bowl now flare out some. ( if it holds together at 400 rpm ! )



Loz

 

[loz]

Clever idea.

Someone elses very clever idea i'm afraid ! I can't recall who was doing it this way now - but it's very similar to Bob Hamiltons version, only he used a bandsaw to cut the rings out, where i used a parting tool on the lathe.

( and Bob has a rather fetching tongue and groove effect - and its segmented ) Where as mine will probably just end up in segments in flight !



http://bobhamswwing.com/Articles/economy/TRUE ECONOMY.htm

 

[stevebuk]

good luck mate, fingers crossed..

 

[Richard Findley]

Hi Loz,

I will follow this with interest. I've heard of the idea before but never experimented or even seen it done!

This ply should be ok. There will probably be the odd small void in it and it will blunt your tools like nothing else but best of luck with it!!

Oh yeah, watch out for splinters, they'll go bad on you if you get them so be aware!!

Cheers,

Richard

 

[miles_hot]

I'm confused - when you were clamping it I would have expected the required forces to be the other way around - when I saw the clamps I would have expected them to collapse the structure not force it together... What am I missing?

 

[loz]

I'm confused - when you were clamping it I would have expected the required forces to be the other way around - when I saw the clamps I would have expected them to collapse the structure not force it together... What am I missing?

Hi Miles,

Each ring is flat, and overlaps the one below by almost an inch so the clamps from top and bottom push the rigs together,

My clapms were to small to surround all though - only the top 3 rings, i had to add some weight to the top also.

hope iv'e explained correctly.

 

[Turn It In]

Hi Loz,
I hope you don't produce flying saucers!!
Should be a nice project and you will probably get a textured finish that you can fill the voids with something or other.
I look forward to a sucessful result, good luck.
Regards,
Ian

 

[loz]

Base glued on,

Not pretty but will do the job. Had to recess a spigot as i wont be able to reverse this bowl when finished due to its size.

Loz

 

[mrs. sliver]

I saw some turned ply a while back and it looked really good! I can't wait to see how it turns out .. But HEY ...... let's be careful out there! :lol:

 

[bobham]

Looking good, Loz! I have never tried the parting tool technique for making the rings, but there is (or used to be) a commercial tool available for making bowls and vessels that way. It is called the Ringmaster ( http://www.ringmastertool.com/ ). There is a fellow on another forum I frequent that has put together a tutorial on building this kind of blank starting with a segmented disk that can generate some very interesting patterns: http://forum.canadianwoodworking.com/sh ... hp?t=18252

With regard to the plywood, be prepared to re-sharpen often. Manufactured wood panels are hard on cutting edges.

Take care
Bob