Mailing List flyrotary@lancaironline.net Message #3520
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: Mill Drill and Lathe
Date: Sun, 5 Oct 2003 08:40:52 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
No offense taken, Mike.  We all want to know the good, the bad and the ugly.  Not  having any experience with anything other than my old Sears Atlas small lathe, I will have to accept your experienced based views. I recognized some of the limitations of this machine from the start, but decided that I could live with them.  Some of the other limitations I was not aware of.
 
 I would have loved to been able to afford a Bridgeport Mill and a nice 48" 12" swing Lathe, but alas could not.  Since time is not an issue with me, I can adapt.  I am certain that such things as not being able to rapidly transverse a piece of work will become an irritant in time. 
 
I am not familiar with the Smithy 3 in 1, but from you comparison, it would appear that this machine is different in some areas.  For instance, the milling head on this machine does not use a single drill post like column apparently like the Smithy and many others do.  It has 4 steel rods at each corner that it rides up and down, don't see how it can be swung out of the way. 

The SHOPMASTER ELDORADO BRIDGEMILL is the only 3 in 1
machine with this super rigid function.  Unlike some machines which
use a drill press style column, the BRIDGEMILL uses  steel columns
to insure rigidity and accuracy in your milling operations. This exclusive
feature allows the mill head to bring the tool within reach of the table for
smaller work as well as raising it up for larger pieces.  Your mill setups 
will be fast and precise
.

 
 It would appear you have to elevate it to its maximum height to get the mill head out of the way..  Don't know how the four posts may  add or detract from its stability. 
 
Regarding the table to mill head clearance, the specs claim:
 
HEIGHT FROM MILL TABLE   14" MAX  4" MIN
 
I realize that the tools and vice will take up some of that space so not all is "usable", but if it leaves me 6- 9" of head room that will take care of any needs I foresee at this time. 
 
So I may end up disappointed, but having made do with a drill press and 6" Atlas Lathe all these years, the capability of this mill will probably serve my needs for the foreseeable future.  However, I agree that if you can afford the dedicated well known machines and have room for them, that is certainly the way to go.
 
I'll provide some reports once I get it set up. 
 
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com
----- Original Message -----
Sent: Saturday, October 04, 2003 8:57 PM
Subject: [FlyRotary] Re: Mill Drill and Lathe

Rusty,
    Just my $.02, but hold your horses here. If you want to get into the machine tool end of things, the FIRST thing you want is a good lathe that is at least 12x36". A lathe is the basis of all machine work, and learning how to properly operate one is the best basis for learning machine tools.
    With a nice milling attachment, the lathe basically converts into a 3in1 machine as it can be used for turning, milling and drilling operations. The milling and drilling are horizontal and it won't have quite as much movement when milling. Now here's why you don't really want this 3in1 machine.
    Ed, I don't mean to knock your new toy, but I had a little 3in1, a Smithy 12x20 (basically the same machine as this one, but this one is a LOT nicer). I was not at all impressed and kept it less than a year. It was an OK little machine...if it's all you had.
     what machine it is, this one or a 
 
SNIP
 
    I will be glad to help you find a nice lathe if you want me to. I recently found a lathe for friend in PA, who is finishing an Exec helo. I found him a hardly-used 20yr old variable-speed 5hp South Bend 14x50" toolroom lathe with quick-change box, 3 and 4 jaw chucks, follow rest, steady rest (roller type), collet holder, full set of 5C collets, taper attachment, coolant system, quick change toolpost, Jacob's tailstock chuck, and cabinet for about $3K. He had to drive about 250miles to get it.  Mike C.
   
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