Haldane
Established Member
Hi All
Took some WIP pictures of the platter I was turning for this months comp. But it all went horribly wrong very near to completion, so I thought I'd post them as an example of how not to do it. ( if you can't stand the suspense just go to the last picture )
Started with a off cut of Elm that had been a Shelve/desk in my sons bedroom. It had some interesting natural defects? that I hoped to incorporate into the design
cut a large a disc as possible on bandsaw without thinking ( this was possibly where things started to go wrong, no forward planning, in my defence I was enjoying myself to much to notice )
Came out at about 14" dia
Turned the headstock on the lathe and mounted the wood on a screw chuck and trued up the piece
Rough shaped the back and turned a spigot for the chuck jaws
The wood near the defects was quite soft and i was worried about it breaking away I had planned to use filler with brass powder in the gaps and decided to put some in at this point to try and offer some support to surrounding wood
This turned out to be a bad idea as the wood was strong enough and i just blunted chisels and knocked chunks of filler out.
With the defect on one side of the platter i wanted to try and balance it out so put a small wedge at the back between the chuck jaws and wood to create a slight wobble and then cut some grooves also to try and act as leading lines into the more natural area, if that makes sense?
Anyway got my final shape more filler to replace chunks that I knocked out and also into the grooves ( would have saved a lot of time and filler if i'd just left it to the end. Live and learn! ) Applied lots of finishing oil the timber just soaked it up but while it was wet the grain just popped out it looked great and i new i'd be able to keep adding and build up the finish.
Time to finish the back get the cole jaws out and realise they will only go to about 11" dia
So decided to make temporary plywood set just to finish this project
In my defence the temp jaws worked very well and griped the platter very securely but did make a bit of a strange noise when spinning even at low speed which I have decided to blame for what happened next as it masked the sounds coming from the platter which would have warned me this was about to happen
#-o #-o #-o #-o
Anyway thats how my afternoon's gone, back to the shed to look for another piece of timber but i'm almost certain I will not find anything as nice as the elm!! and not much time left to be starting again!
Dave
Took some WIP pictures of the platter I was turning for this months comp. But it all went horribly wrong very near to completion, so I thought I'd post them as an example of how not to do it. ( if you can't stand the suspense just go to the last picture )
Started with a off cut of Elm that had been a Shelve/desk in my sons bedroom. It had some interesting natural defects? that I hoped to incorporate into the design
cut a large a disc as possible on bandsaw without thinking ( this was possibly where things started to go wrong, no forward planning, in my defence I was enjoying myself to much to notice )
Came out at about 14" dia
Turned the headstock on the lathe and mounted the wood on a screw chuck and trued up the piece
Rough shaped the back and turned a spigot for the chuck jaws
The wood near the defects was quite soft and i was worried about it breaking away I had planned to use filler with brass powder in the gaps and decided to put some in at this point to try and offer some support to surrounding wood
This turned out to be a bad idea as the wood was strong enough and i just blunted chisels and knocked chunks of filler out.
With the defect on one side of the platter i wanted to try and balance it out so put a small wedge at the back between the chuck jaws and wood to create a slight wobble and then cut some grooves also to try and act as leading lines into the more natural area, if that makes sense?
Anyway got my final shape more filler to replace chunks that I knocked out and also into the grooves ( would have saved a lot of time and filler if i'd just left it to the end. Live and learn! ) Applied lots of finishing oil the timber just soaked it up but while it was wet the grain just popped out it looked great and i new i'd be able to keep adding and build up the finish.
Time to finish the back get the cole jaws out and realise they will only go to about 11" dia
So decided to make temporary plywood set just to finish this project
In my defence the temp jaws worked very well and griped the platter very securely but did make a bit of a strange noise when spinning even at low speed which I have decided to blame for what happened next as it masked the sounds coming from the platter which would have warned me this was about to happen
#-o #-o #-o #-o
Anyway thats how my afternoon's gone, back to the shed to look for another piece of timber but i'm almost certain I will not find anything as nice as the elm!! and not much time left to be starting again!
Dave