Replies

1. 
   mlbfreestyle | Nov 28, 2003 06:58am | #1

   In my opinion.

   A morse taper refers to the tapered shank of certain rotating tools and the accompanying socket into which they fit; such as on lathe centers and many industrial drill presses and milling machines.  Morse refers to a specific set of dimensions and are called out as #1, #2, etc.  I think there are other taper standards out there but Morse is most common (?).

   A tapered shank can be popped into the socket with a tap and hold well.  This system is also self-centering by nature.

2. 
   IMERC | Nov 28, 2003 07:00am | #2

   In My Opinion IMO means in my opinion.

    

   Who ever invented work didn't know how to fish....

3. 
   john | Nov 28, 2003 10:51am | #3

   IMO (in my opinion) in a post is superfluous. Of course the poster is giving their own opinion, they would hardly be quoting someone else's opinion, would they?

   Ideally on the front page of every forum there would be an announcement "please understand that all opinions given here are those of the individual posters". Then there would be no need for people to keep saying IMO

   All the above IMO, BTW

   John 

1. 
   PlaneWood | Nov 29, 2003 01:22am | #5

   Maybe they have a split personality and it's the other side talkin!!

   IMO - In my opinion

   IMHO - In my honest opinon (different from the one above)

   LMAO - Laughing my A-- off

   ROFLMAO - Rolling on floor, laughing my A-- off (lots of that around here)

   PlaneWood by Mike_in_Katy (maker of fine sawdust!)PlaneWood

4. 
   watkinsjd | Nov 28, 2003 08:44pm | #4

   Derek,

   You may also encounter IMHO, in my HUMBLE opinion, which means "if you don't agree with me please don't beat me up over it!"

5. 
   UncleDunc | Nov 29, 2003 02:51am | #6

   Google for

   "morse taper" dimensions

   and you should get several sites that list the sizes. Fiddle with the search string and you may find a site that explains self holding and self releasing tapers. Morse tapers are self holding tapers.

   Morse taper (and other self holding tapers) are how 19th C. machinists held drills concentrically in machine tools before we had the technology to build good quality, cheap, self centering drill chucks.

6. 
   Steinmetz | Nov 29, 2003 01:38pm | #7

   Derek, Morse tapers usualy on lathes. Jacobs on drill presses & drill chucks

   Brown and Sharpe (B&S)  I forget?    Stein.

   
   

   ---

   Edited 11/29/2003 5:47:38 AM ET by steinmetz

1. 
   UncleDunc | Nov 30, 2003 06:36am | #8

   There are two tapers on a lot of drill presses so they take an adapter with two male ends to install the chuck. AFAIK, all the taper mount drill chucks sold in the US use a Jacobs tapers. All the drill presses I've seen that use this technique have Morse taper holes in the spindle. So the adapter is a male Jacobs taper on one end and a male Morse taper on the other.

   (More than you wanted to know about chucks: Not all chucks are taper mounted. You can get chucks that are thread mounted, with a tapped hole in the back of the chuck. I believe most hand held drills use thread mounted chucks. You can also get chucks with integral adapters, so the adapter is part of the same piece of metal as the back of the chuck. The ones I have seen in catalogs, the adapter shank is either cylindrical or Morse taper. The only maker I know of is Albrecht, and their chucks are way expensive. Christmas is coming up, and my birthday is in June. Keep me in mind if you're feeling generous. Or profligate.)

   Morse tapers certainly became more popular than Browne and Sharp. Other than machines manufactured by B&S, the only application I know of is that some dividing head spindles are B&S taper.