Digital Height Gage (almost finished)

[chucketn]

I have almost completed my version of a Digital Height Gage.It is based on several builds, but the basis is an unmodified Digital VernierCaliper. I wanted to be able to remove the Digital Vernier and use it on itsown.

This is the chunk of Cast Iron I was having issues withgetting under the skin.

My build is based on a combination of versions by Frank McLean,Paul Pierce, and David Graves. It’s not quite finished as I don’t have thematerial to make the scribe point. My local Fastenal supposedly has 1/8” drillrod. I will post more pictures when it’s complete.

Pics here: http://s571.photobucket.com/user/chucketn/library/Digital%20Height%20Gage

I’ve noticed that handling the cast iron base still makes myfingers and anything else that touches it black. What finishes do you folks puton machined cast iron?

Chuck

 

[canadianhorsepower]

I’ve noticed that handling the cast iron base still makes myfingers and anything else that touches it black. What finishes do you folks puton machined cast iron?

I use paint that is used to paint the inside of
engine block to seal it many colors stay on good

other wise cast is like chocolate, their is always a trace
on your finger, but you cant lick it away.Rof}Rof}

nice little project

 

[old-and-broken]

warm it up in an oven to drive out any moisture and give it a coat of shellac while still warm. phosphating is another option but few people have the needed facilities or chemicals

 

[m_kilde]

Hi Chuck

Wish all the best with finishing your tool, but I think it's more complicated as needed.

I have made my scriper years ago, and if you accept that the refrence (zero) point is above 16 mm of the footplate of the tool, this construction is much simpler.