The Gun Counter

HTRN,

This sine bar thread on HSM just got necro'd. I notice you posted a link - now dead - to some clever gadget, but I can't figure out what the link was to. Do you remember?

http://bbs.homeshopmachinist.net/thread ... -bar/page2

I'm not htrn, but was it an adjustable angle block?

It was a multi step "ladder" for common angles used on a sine bar. Really easy to copy if you have a surface grinder. I think cdco might sell a cheap import knock off.

That is cool. Never saw anything like that but it makes sense.

For the home shop guy it's expensive for some thing that probably doesn't get used very often. I think the us made one was over 300 bucks, here's a home made one.

BTW little machine shop has a sine bar calculator on their website, rather than bothering to figure out the math.

I just use a machinists calc pro for trig. I can do the math. I I even like to, but the calculator is faster. Of course stacking gage blocks takes time too.

That's why you use a mike and a.planar gage on all none critical angles.

Yup that would work. I think I've used a sine bar about 3 time since school.