Turning bowls when green

[Woodworks]

Got some lumps of ripple sycamore I scavenged from the firewood. I roughed them out into blanks for the father in law but they are getting a green mould forming on them. I am not really a turner but own a lath and have seen blanks turned green and then set aside to dry. Thought I would try this with one to maybe speed drying and avoid the green mould taking over. How close to finished dimensions do you take them and do I now need to re seal the part turned blank? 

[Lazurus]

I usually turn to 25mm wall thickness which leaves enough to return if the blank warps, with sycamore I turn to finished dimensions and just let nature takes its course as the odd shapes from warping look good especially on a vase shape.

If you want to speed the process use a microwave, plenty of advice on the interwebb but I would just finish turn then sand when dry. If you turn to a few mm thickness it will dry quick.

The green mold will have to be turned away as the staining can go quite deep, hence the finish turn when wet. (wear a rain coat there can be a lot of water when your cutting) but it is easy to cut and get huge streamers on the tool.

[TheHungrySquirrel]

I turn green to finish in one hit but my bowls are not sanded. I give them a final clean cut with a sharp gouge.

If you get an even thickness then you shouldn't experience any splitting.

[Woodworks]

Had a play with one but sadly the staining went further in than hoped. Not too bad though unlike my turning. Got the inside reasonable and  now needs sanding but keep having the gouge bite in when working the outside and cant for the life of remember how to avoid this. Only had basic lessons when at school so remind what I should be doing.

[TheHungrySquirrel]

What angle of attack are you using for the outside?

Always cut from the bottom of the bowl towards the rim on the the outside, use the bevel rubbing and start a cut then slowly work round in one pass if you can.

On the inside same thing but cut from rim to base.

[Woodworks]

10 minutes ago, TheHungrySquirrel said:

 use the bevel rubbing and start a cut then slowly 

 

Ah yes that rings a bell. Will have another go some time and try to clean up the mess I have made. Thanks 

[CDMR]

A+B Bleach should get rid of the staining. Don't use domestic bleach, it will go pink.

[Lazurus]

I use Oxalic acid also works on GRP concrete etc., cheap as chips and very very effective.