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At the risk of posting something most people here already know: Our machinist (this was long ago) at work told me one day that if you drill a pilot hole first followed by a slightly undersize drill

Mike is right about the usefulness of the center adapters. Guessing just does not cut it. Even the trick of putting a bolt in the hole and using the hex head and surfaces is not always accurate as

Almost everyone has the drilling accuracy problem. It is impossible to drill a 0.500 hole with a 1/2" drill bit in a drill press. All drill press chuck assemblies have a little play, or they would not

One problem to address is getting the exact center of the backing plate to exactly line up with the exact center of the chuck jaws when they are clamped on something tight. This might be a few

I bought a pair of these for each my 6" & 12 " Dial calipers 30+ years . Now I have several more caliper's that were my dads I should put a pair on one of them Y leave them on . Pretty handy if ya

One thing that threw all our talk of measurements and ascribing into a cocked hat is the fact that this circle *has no center*- the middle of the back plate is the hole where the spindle goes through.

Good info, thanks! I'll copy that for future reference. My "math is hard" comment mostly comes from the backlash Mattel received a handful of years ago when they released a talking Barbie, and that

I have gotten a bit lazy in my old age. Back in the past I would have calculated this by hand on paper. Later I wrote a BASIC program to do the calculations. These days I use one of two methods: If I

Something strange happened when I tried to reply to the incoming email with this message.? It bounced because it seemed to have picked up the old yahoo groups address somehow.? Apologies if groups

I had a real problem with math in hi school , to the point where i got frustrated I just got up & walked out of the class room . It took me years to appreciate all the numbers & logical thinking

Calculating the bolt circle for a chinesium chuck of unknown dimensions...

As a followup to my previous post, the height from compound to cutter tip on this toolpost is a whopping 1.62" if using 1/2" HSS bits or indexing toolholders (0.560" from compound to underside of

I picked up an Enco 3.5" turret toolpost on ebay recently, and am trying to adapt it to use on my 1942 199-Y 10R. It's pretty much identical to this one (

First you have to get the film digitized. I use Cinepost that uses a wet scan machine which is not done by 99% of scanning companies now but it gives a much better scan. They scan each frame

What software are ya usin to restore 8 mm film ? thanks animal

If he could take the time the videos could most probably be made better if run through software that is designed to improve old video tape. I have restored a lot of 8mm film and am always amazed at

Yes, the video on the mic is poor quality. But that is one out of a hundred. I did not know he is re-releasing old videos. As the posting onto YouTube is new. But that would explain why so many, so

It's not dark on a 15" laptop.? Slightly out of focus, did not have sound on.

Try a larger screen, it's dark, low resolution and the micrometer is never in focus, not even once. [email protected]> wrote: