Outfitting the Levin.

[steamer]

Well   at 20-30 bucks for a good reamer, and probably 2-3 days to deliver.    .....for 2 holes....that I'll never use again.......

I made a reamer.

That's it for tonight though....

Dave

[crueby]

Never seen that style reamer, is there a name for it?


 

[steamer]

Well  It's always been a "Toolmakers Reamer" to me    It's basically a D bit.

so I'll set up and put a 0.209 hole in with a #4 drill, and then bring it to 0.2165 with the reamer.

Dave

[steamer]

It's made to size.   0.2165"  5.5mm    When it was hardened, it'll grow about 0.0002", so it'll be slightly oversize, but that's fine

I didn't draw the temper.   It's full hard..  Cherry red with a torch, drop it in gear oil.

Harder than woodpecker lips!

Stoned the cutting face .. 

It took me 15 minutes to make this tool   They work well, and saved me $30

Dave

[steamer]

The other way to do this, is to buy drill blanks in HSS.    The blanks are very inexpensive.   Grind the angled face and you can have any reamer they make a blank for.  Which is essentially every 0.001" increments...Saves a bunch of money on odd reamers.

Dave

[b.lindsey]

The handles look good so far Dave. Good to know that little rig worked ok.

Bill

[Kim]

That's a pretty neat trick for the on-off reamer there Dave.  What's the angle you used for the end of the tool?   And what makes this more 'reamer-y' than a D-bit?   I love learning new tricks like this    I'll have to file this one away!

Kim

[steamer]

 The taper is 4 to 5 diameters long.

Dave

[MJM460]

Thanks for explaining about those readers, Dave.  I have one of the EJWinter construction guides for a set of castings which includes a picture of one, but no description or even mention of any kind in the text. 

Presumably you machine guide it through the drilled hole before moving anything, at similar speed to a standard reamer.  I usually use my slowest speed (50 rpm).

I have not seen any other reference to the device so taking plenty of notice.  Are there any tricks to making it or using it that we need to know?

MJM460

[steamer]

Interesting   I did a google search and found references.

I use it like any other reamer but you have to run it slower than hss.   I machine the flat on the mill.   I harden them and then sharpen them on a flat stone.   No tcg needed.

[steamer]

Make sure theyre cleaned up after hardening.

[b.lindsey]

Dang brother, you were either up VERY late or up VERY early 

Bill

[steamer]

Woke up early......takes some time to turn it back off.

[steamer]

I have some "work" work to do this morning, and then I can get on with the handles and some other parts for a friend...no not Terry....

Dave

[steamer]

First hole   #4 drill followed by the reamer.  Cut like buttah.

Setting up the other holes now.