Member postings for bernard towers

Roy the term you are looking for is Swan Neck

I do like that setup jig Joseph.

By the way Andy I'm a little concerned at how shiny your grinding wheel is in the first photo, possibly time to reface.

You've got the div head can't you make them???

Lakeland Ovenmate for me

For rope knurls a look at Clickspring will help.

Less noise less heat Im afraid!

its possible that the drill orientation is slightly off, to get parallel primary facet the drill face needs to be exactly horizontal. I use a jig on my stent but would imagine its similar.

ask Home and Workshop Machinery they have got some big lumps

Hopper, Surely you mean 5 deg 45secs for a 10 to 1 ratio which has nothing to do with metric or imperial.

9.54mm

Temperature does not harden copper its movement (vibration) that does

Solder every time plus a rub over with ms4 grease.

Wood seems to be the material of choice, use a good hardwood even glued up pallet wood

shouldn't the plate be polished first, then the groove machined withe a protective film on it otherwise the polishing operation is likely to tear the sharp edges.

My Steam boat boiler lagging was done by soaking soft string in plaster of Paris and winding it round the pipes. its been in place for over 15 years!.

Brilliant service as usual, I'd have a hard job to drive it in that time!

I have seen small round bar semi knurled /roughed up by having the bar laying on apiece of timber and a bastard file laid on it and rolled along with good downward pressure. this was for an araldited joint in wood.

id' go for 0ba as it would not be m6 in 1940s Britain

If the threads are only there to grip in wood would some type of knurling suffice?