Mark 2 today after resetting all my workshop equipment yesterday lets see if I learned anything from the previous effort.
First thing I did think of was that it would be easier to do this in two parts and that the bottom part does not need a sleeve all the way through.
A trial run here with just a plug to line everything up correctly and hold it in place, chop the bullet about 2/3rds from the tip.
Use the top and bottom as your bushes and turn down a drilled blank of any sort as it won't be seen, approx 1 inch and slip inside the bottom part.
make sure its forced well in and allows room for the tenon that will be on the top part, insert the tube to the required position but don't press the nib in yet, glue it up at this position.
Picture shows nib fitted for illustration only, to show the finished bottom before fitting transition and assembly.
Now the top part as a separate section.
Measure the inside depth of the bullet top which I had drilled at 6.9mm and mark your drilled blank to allow for a tenon at both top and bottom and of course your top tube.
Cut the top tenon first and insert this into your bullet top.
Sorry my camera battery went flat at this point I will continue to describe procedure but if you want more pics I will do some on the next effort.
Next cut the bottom tenon and insert this into the bottom bullet part to ensure the fit is correct.
At this point I put the whole thing on the mandrel, that's the reason for leaving the nib out.
I did have a very tight fit so took a tad more off the diameter and enlarged the drilling with a file to ensure a smooth turn on the transmission.
I don't think I have mentioned I didn't glue the top tube in as yet, it is just inserted to fit and take the slack on the mandrel.
Now I know it all fits together I can glue the top tube in inserting it from the bullet top end, although I left it until it all came off the mandrel.
It's time to turn the barrel down to the desired shape and size and finish as required polishing the whole thing while still on the mandrel brass and all.
Take it off glue me tube in and fit it all together take indoors and charge my batteries for a pic of the completed item.
This way worked for me to produce a sturdy pen with no centre band init?
What do you reckon?