North East Chapter – Irish Woodturners
North East Chapter, had made a three legged stool for each of his grandchildren in the
latest grandson arrived only a few weeks ago, so it was an opportune time for him to demonstrate his methods
and techniques in turning an heirloom stool for his grandson.
Gerard Corrigan demonstrating his
3 leg stool
Pitch Pine was
used for the project using a series of simple jigs for consistency – starting with an 11” seat mounted on a
glue-block, a recess was cut out for chuck mounting. The ‘recess measuring jig’ consisted of two nails inserted in a short
piece of timber – place one nail tip in centre point, while scribing the recess diameter with the other nail
The inside of the recess was decorated using a point tool.
edges of the seat were rounded using a bowl gouge, and final cuts with a negative rake
tip of the day – the combined angles of a negative rake scraper should be less than 90
degrees. Inscribe a pencil line 40mm in from the
edge and mark 4, 8 and 12 o’clock points for positioning the 3 legs. The legs would be splayed to give a greater diameter than the seat for greater
stability. This was achieved by drilling the three
holes completely through the seat, drilling from back of seat to face, with the aid of a support jig which was
constructed at an angle of 15 degrees.
Remount the seat
recess in the chuck and cut off the glue-block, and proceed to shape the seat slightly
concave. Next, set up the leg in a ‘spring chuck jig’ gripped in the chuck with the tenon held in the
tailstock. Mark out the coves and beads using a ‘story
board’. A ‘sizing ring’ jig fitted at the tailstock
was used to ensure a consistent tenon size. The turned leg was dismounted, and the tenon was fitted into a secure ‘holding jig’ which
contained a pre cut slot. The leg was adjusted to ensure the grain aligned with the pre cut slot and then tightened
into position by means of a screw fitted in the holding jig. The tenon can now be sawn to
accommodate the fitting of a walnut wedge.
Gerard Corrigan - wedging the tenon
Before gluing in
the tenon it can be beneficial to heat the tenon to ensure a tighter secure grip. Align the leg into desired
position and hammer wedge into tenon. Thank you Gerard for a very enjoyable and
Richard Coyle for his critique on the following exhibits:-
Mahogany pedestal stand – Kevin Milton.
Laburnum bowl –
Beech & Iroko twirl bowl – Gene McConnell.
Iroko Holy Water font – Bob Dier.
Beech Jar – Eamonn