Chris Knight
Established Member
Posted on behalf of Rob:-
Have got the comp casket under way and thought you may be interested to see progress 'cos once the joints are all together they're won't (hopefully) be a lot to see. There's no easy way to do these joints, they're just plain hard and difficult :x . Pic below shows the timber (teak) planed up true, the ends have been shot dead square and each pair is again exactly the same length, shoulder lines have been struck and mitres marked with the mitre set, all lines deeply knife cut:
This pic shows the rebate taken out on the router table, the corner of the rebate needs to just kiss the 45deg mitre slope, some of them had to be taken down to the line with a shoulder plane:
The joints are marked out, I use a black fine biro and the pins need to be cut first and then the tails marked out from them which is the opposite way round to normal thru' d/ts. Waste is chopped out with chisels except to saw in the mitres on the corners:
Once the pins and tails have been chopped out the mitres can be roughly cut, this pic shows an oak block planed to 45deg to cut in the mitres at the lid junction, top and bottom:
The remaining part of the mitre can then be removed to within about 1mm of the corner...I'm using here a pair of scew chisels to cut across the grain (slicing cut):
Once the mitres have been roughly cut the joints were tested to see if the whole thing would go together:
......and then it's time to do the really difficult bit, planing in the mitres. They have been cut accurately using a bigger oak block at the corners and lid, this pic shows the same block being used to steady the LN shoulder plane, and the large size as recommended by MrC gives excellent control.
The last pic shows the two shorter sides with the mitres all done and the longer sides yet to be finished off......after some coffee :lol:
.
Will post more pics as the casket progresses - Rob
Robs Casket necessitated the making of a special curved sole plane.
In order to do the shaping on my casket entered for the comp, I've had to make a special plane so a few WIP picis. This one is made in maple with a rosewood sole, single cutter set at 55deg, brass cap iron and Derek of Oz style bolt, with the iron secured with a couple of 4mm set screws to act as pivots in the sides. The maple's a bit grubby at the mo' as there's a lot of rosewood dust on it...final shaping yet to be done:
In order to make a plane with an inset sole, it's fairly essential and much easier to clean out and shape the mouth if an insert is fitted as seen in this pic. Insert held in place by two deeply counterbored brass screws, sole shaped and sanded to a suitable curve for the casket sides:
After I've finished the cap iron (very hard work to saw 8mm solid brass by hand) I need to have a trawl thru' the early editions of F&C to find MrC's article(s) on making a jig to fit on the Tormek so that the cutter can be ground to a set radius. Will post a pic of completed plane later...coffee time now
- Rob
One other thing is that it's useful to add a separate sole tho' a bit more tricky to do ('specially to cut the mouth etc) but it does mean that you can make the body from something relatively easy to work with such as a nice lump of zebrano and then glue on a much harder timber for the sole, lignum is ideal but there are lots of others. If you do decide to go down the separate sole route then a 1:1 sectioned drawing and separate mouth insert are highly recommended:
This one is a special that I made recently with a curved sole. The plane is in maple with a rosewood sole and inset mouth tho' I forgot that the curvature of the insert at the mouth is in two planes #-o so I had to glue in a bit of tufnol and then file to fit, however the priciple for a flat bottomed plane remains the same - Rob
"Is it nice and can I have it?"
These were the first words uttered by my daughter Megs when I told her last week that the Teak Casket had been finished, so here's a few pics of the finished project, which will also be the subject of a forthcoming article in my favourite mag:
Hope you like the finished casket, which will be my entry for the making part of the Comp - Rob
Have got the comp casket under way and thought you may be interested to see progress 'cos once the joints are all together they're won't (hopefully) be a lot to see. There's no easy way to do these joints, they're just plain hard and difficult :x . Pic below shows the timber (teak) planed up true, the ends have been shot dead square and each pair is again exactly the same length, shoulder lines have been struck and mitres marked with the mitre set, all lines deeply knife cut:
This pic shows the rebate taken out on the router table, the corner of the rebate needs to just kiss the 45deg mitre slope, some of them had to be taken down to the line with a shoulder plane:
The joints are marked out, I use a black fine biro and the pins need to be cut first and then the tails marked out from them which is the opposite way round to normal thru' d/ts. Waste is chopped out with chisels except to saw in the mitres on the corners:
Once the pins and tails have been chopped out the mitres can be roughly cut, this pic shows an oak block planed to 45deg to cut in the mitres at the lid junction, top and bottom:
The remaining part of the mitre can then be removed to within about 1mm of the corner...I'm using here a pair of scew chisels to cut across the grain (slicing cut):
Once the mitres have been roughly cut the joints were tested to see if the whole thing would go together:
......and then it's time to do the really difficult bit, planing in the mitres. They have been cut accurately using a bigger oak block at the corners and lid, this pic shows the same block being used to steady the LN shoulder plane, and the large size as recommended by MrC gives excellent control.
The last pic shows the two shorter sides with the mitres all done and the longer sides yet to be finished off......after some coffee :lol:
.
Will post more pics as the casket progresses - Rob
Robs Casket necessitated the making of a special curved sole plane.
In order to do the shaping on my casket entered for the comp, I've had to make a special plane so a few WIP picis. This one is made in maple with a rosewood sole, single cutter set at 55deg, brass cap iron and Derek of Oz style bolt, with the iron secured with a couple of 4mm set screws to act as pivots in the sides. The maple's a bit grubby at the mo' as there's a lot of rosewood dust on it...final shaping yet to be done:
In order to make a plane with an inset sole, it's fairly essential and much easier to clean out and shape the mouth if an insert is fitted as seen in this pic. Insert held in place by two deeply counterbored brass screws, sole shaped and sanded to a suitable curve for the casket sides:
After I've finished the cap iron (very hard work to saw 8mm solid brass by hand) I need to have a trawl thru' the early editions of F&C to find MrC's article(s) on making a jig to fit on the Tormek so that the cutter can be ground to a set radius. Will post a pic of completed plane later...coffee time now
- RobOne other thing is that it's useful to add a separate sole tho' a bit more tricky to do ('specially to cut the mouth etc) but it does mean that you can make the body from something relatively easy to work with such as a nice lump of zebrano and then glue on a much harder timber for the sole, lignum is ideal but there are lots of others. If you do decide to go down the separate sole route then a 1:1 sectioned drawing and separate mouth insert are highly recommended:
This one is a special that I made recently with a curved sole. The plane is in maple with a rosewood sole and inset mouth tho' I forgot that the curvature of the insert at the mouth is in two planes #-o so I had to glue in a bit of tufnol and then file to fit, however the priciple for a flat bottomed plane remains the same - Rob
"Is it nice and can I have it?"
These were the first words uttered by my daughter Megs when I told her last week that the Teak Casket had been finished, so here's a few pics of the finished project, which will also be the subject of a forthcoming article in my favourite mag:
Hope you like the finished casket, which will be my entry for the making part of the Comp - Rob
