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| Allchine Bibcox |
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| Stilldrillin:
--- Quote from: lordedmond on February 07, 2012, 03:06:11 AM --- I thumb my nose at 10 ba :) :) I use 12 ba on a regular basis with the accessional use of 16ba. :bugeye: Stuart BTW good work Stew --- End quote --- Stuart. That explains why Stu & Stew are model engineers...... And, I'm not....... :D David D |
| sbwhart:
Thanks Guys 12 and 16 BA Stuart that must be like tapping with an hair :bow: :bow: :bow: I supose M4 in a ship yard is very small stuff John :D :D I don't think I gave Bernd a straight answer to his ? --- Quote ---Nice one Stew. I want to know how you machined the end and bent it like that? Bernd --- End quote --- I thought I'd got lucky with the first one, I was right putting those bends in was a bit of a headace. I was using scap yard material I think it was leaded free machining brass so it wasn't the most ductile of the brasses hence i had to aneal it and bend it in stages, I also found it best no to drill the hole all the way through and to leave it blind that way the wall got a little support to stop it colapsing and turned the spout twice as long as required and cut the surplus off after bending. Also found it best not to go with to sharp a bend I held the part in the vice and bent it with a bit of tube moving the tube towards the end a bit at a time so that it gave a gradual bend. hope thats a better answer Bernd I formed the midle bit of the body with a form tool Ended up with these good ones And this is some of the scrap Back to the Simpson and Shipton now Stew |
| lordedmond:
Good work on the Bibcocks Stew yes things get a bit thin at 12 and 16 ba, not to bad tho tapping size for 16 BA is number 73 or 0.6 mm or good old 23 thou and do not sneeze ( I use my version of a tapping stand ) most taxing drilling job of late we two concentric rings of 36 no. 80 with the inner ring offset by 5 deg. broke ten drills doing the pair not to bad for 144 holes as I only had 1800 rpm available , next time I would fasten my flex dive system ( 25 k rpm ) to the mill Keep up the good work I do enjoy your posts as you build at a much faster rate than I can do now First loco was six months the last is looking like ten plus years Stuart |
| AndyB:
Cracking Stew, I am stunned and amazed...again..again...again :bow: :bow: :bow: Your work is such a fine example to us all. Many, many thanks for posting this, you make it look so easy; but, thank you more for showing the scrap. It gives me, for one, more incentive and confidence to keep going when it all starts going wrong. Andy |
| arnoldb:
:clap: :clap: Great tutorial Stew :thumbup: - I've been running some ideas through my noggin on making small cocks like these, as I tend to work on the smallish side of things too. Your method is so simple compared to the half-formed stuff I had in mind... :lol: - It's nice to see the bits that didn't make it too... I was suspecting that there might be some; it seems that the smaller the workpieces get, the more they end up on the "re-use" pile :D :beer:, Arnold |
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