Progress! This weekend was beautiful out and was time for some armaturing.
Necessary supplies: dremel tool, assorted bits for it (sanding drum, cut off disc and drill bits being the most handy), goggles, jewellers saw, 4-40 thread tap, jewellers pin vice (amazingly handy thing!) and some oak.
And, of course, an entertained shop dog. He won't go in if I'm out - I think he's convinced I run around with a frisbee and tennis balls the second he looks away.
The armature design is inspired by various types posted on the forums, and by Andrew Brown's work. The oak is a pain to cut, but makes up for it with sanding beautifully! Rods will go into the bottom of these pieces with balls on the end (wooden) to make ball & socket ankles/feet.
This is a shoulder piece - b&s joint on the shoulder, and hinge joint with elbow. (Will be a hinge and swivel combo on the lower half of the arm). After basic shaping is done, a burred ball bit for the dremel is used to curve out the inside of the joint.
Once the inside of the joint is shaped, it's placed over the ball and pounded down until the ball pops in place. Then a hole is drilled through to add a tension screw. Initially I tried threading the hole in the oak, but the threads gave before the oak tightened, so a nut is still necessary. The nut will be slightly indented into the wood then glued in place. Once I know what hardware is needed the screws will be replaced with appropriately long hex screws.
One of the completed segments - ball and socket hip joint, hinge knee. Metal rods will be picked up tomorrow for more assembly!
End of day, and a dog tired from the day in the sun.
3 days ago