More progress over the weekend. Frustrating as I don't get much done during the week any more as work gets in the way!
I trimmed the legs to the table top height and the tolerances are acceptable
Before final assembly I drilled almost through the sliding dovetail assembly from inside and then screwed an M6 threaded insert into the outside part and a slotted 6mm slot countersunk into the innermost component so that the 2 parts of the sliding dovetail assembly were held together with an M6 50mm slotted bolt and there is room for 6mm 'movement' of the top
To attache the table top to the base, I decided on 3 separate mechanisms. First a series of 'buttons' which I glued up from 8mm walnut
and then had 2 on each cross-rail and three on the stretcher
Second I drilled 10mm pilot holes in the sides of the legs and used 80mm screws to go into the side of the table
These holes were then plugged - tried as hard as possible to grain match the walnut
Third, I drilled and countersunk a 6.5 mm hole from below just inside each leg and used a 100mm screw to go up into the table top (can't find the photo sorry). For the final assembly, I used TB3 to glue up the joint between the top of each leg and the recesses in the top. So at the end of all that - I think, the legs are firmly held to the sides of the table top, with the facility for small movements of the sliding dovetail assembly to prevent cracks. We will see!
When all that was done I rubbed down everything going through the grades to 400, stained the top once again with vandyke crystals, wiped down with wire wool and then started osmo-oiling it.
This is after polishing the second coat with a soft cloth
Comments welcome thanks alot
Regards
Mark