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Stilldrillin:
So sorry to hear about your hands Arnold. But, pleased you're over the problem now.

Looking forward to more of your speedy building...... :D

David D

arnoldb:
Many thanks Gents, it's really good to be making chips again :ddb: Sometimes a little reality check makes one appreciate the good things in life even more.

Anzaniste, I don't have any particular measurements on the toolpost, as I made it by eye from handy bits lying around. The pillar is about 24mm thick, welded to a bit of 10mm plate with two holes drilled in it to mount in the rear slot of the lathe toolpost. The tool holder is just a square block of steel that I bored and slitted to fit the toolpost. I made this lot about 1 1/2 years ago before I had my mill and were even less experienced than now, so it's a bit crude, but functional. Here are some additional detail on it. If you have any specific questions, do fire away, and I'll get the appropriate answers for you.

Today's little bits...

A start on the crank web from some hot-rolled rod - drilling the tap-hole for the crank screw on the rotary table as it was convenient:

After parting it off, and pressing onto some 5mm silver steel and a bit of cleanup, the crankshaft was done:

For the eccentric, I cleaned up a bit of the same hot rolled rod as for the web, and used a dial indicator to get the correct offset:

Then it was a fairly simple turning job to finish it off.

With the mill still centered over the RT, I couldn't be bothered to crank the table back to the vise for drilling the grub screw hole in the eccentric, so I just used the drill press:

The completed eccentric on the crank shaft:

The eccentric strap followed; I strayed a bit from Elmer's design and just kept to the crucial dimensions. Here I'm boring it to fit the eccentric:

Today's bits; looks like I'm on a "make three bits per day" streak :coffee:

Tomorrow might be less done, as I have to attend to some matters in town... At least, a part of those concern getting some new "toys" for the shop :ddb:

Regards, Arnold

DaveH:
Nicely done Arnold :)
:beer:
DaveH

raynerd:
Coming in a bit late on this one. Good to see you back at it and excellent build so far!

Chris

Anzaniste:
Arnold, Thanks for the info it's just what I needed. Either great minds think alike or I've maybe seen your Idea on the other web site although I hadn't thought of the keyway. I also had thought of angling the groove for the parting off blade to build in a bit of top rake and keeping the minimum of blade protruding depending what diameter I was parting and using the height adjusting facility to keep the cutting edge on centre height.

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