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View Full Version : Does it work? You bet!



Evan
10-17-2007, 09:09 PM
I powered up the new mill today and made some chips. What a nice machine. I pushed it a bit and it showed no strain at all, just made chips with no complaint and great finish. It's really smooth and really rigid. This is going to be a fun machine to use.

First is a couple of passes on some 7/8" key stock.

http://vts.bc.ca/pics3/hmillcut1.jpg

Then a third pass about .5" x .3 going deeper as it goes past the first two passes. No complaint at all.

http://vts.bc.ca/pics3/hmillcut2.jpg

Then a cut to make a flat on the end of some half hard 1040 ground rod that I will use for the overarm. This is a small test piece. I sure like the finish. This wasn't pushing it, done in three passes.

http://vts.bc.ca/pics3/hmillcut3.jpg

tattoomike68
10-17-2007, 09:12 PM
I like that mill, a crafty person as yourself will be able to do most anything with it. Granted its not for drilling and tapping holes but will do everything else better.

That little mill is a gem.

S_J_H
10-17-2007, 09:17 PM
I've been following your thread on that mill. You have a great find and it looks like it does a great job milling!

Steve

speedy
10-17-2007, 09:28 PM
And better still... it will continue to be used well and cared for as its` previous owner would wish it to be.

jkilroy
10-17-2007, 10:54 PM
Two great things in those pics, one, a horizontal spindle, a thing of beauty in design, no way to match the rigidity of a horizontal spindle with a vertical spindle without a great increase in machine size. Second thing I like about those pics, shell mills. Got to love shell mills. I get them at great discounts on Ebay all the time. You see the surface finish you get with a shell mill, the shearing action possible with the larger diameters, etc. Good job all around.

J Tiers
10-17-2007, 11:01 PM
Anything with a large helix angle is good. Some shell mills, and also the high helix slabbing cutters.

Gotta love those chip "spears" ...... easier to clean up , too.

It's a nice mill, but I AM gonna say that your success is very significantly due to that helix angle. Get a straight toothed shell mill and it will probably slam like anything at the same speed and feed.

ptjw7uk
10-18-2007, 03:19 AM
Fantastic - as is all that you Evan.
Keep the pictures coming its nice to see a decent size workshop in action doing what I will never have room for.
You lucky begger!!
Peter

Your Old Dog
10-18-2007, 05:49 AM
I think your mill proves out a theory of mine and one that I've espoused here to others. If you want something long enough it tends to gravitate in your direction. Here you are up there, just a few steps from the end of the earth and you drag home a great looking piece of machinery!! It will be fun to see what you are able to do with it in a home shop environment.

heavysteamer
10-18-2007, 08:45 AM
Beautiful cuts!! What sort of wrench did you use on the nut of your shell end mill holder?

Evan
10-18-2007, 10:50 AM
What sort of wrench did you use on the nut of your shell end mill holder?

I'm sorry but you are breaking up a bit. What did you say?

Pointy vicegrips. I have to make something better.

I think I will be able to retire the South Bend from most milling duties now. The fun part will be making a vertical adapter for the head on this new machine. It shouldn't be difficult either. In particular, I have the two riser blocks ready made that I can use on the adapter to lock it on the base. Things have improved around Metalshop Borealis lately. I used to have no mill. Now I have two mills and a shaper. Cool. It's been a very good year.

I'm going to be busy today. I have to shoot a video of a martial arts instructor doing a routine so the students can refer to it for home practice. Should be fun.

Evan
10-18-2007, 03:58 PM
Granted its not for drilling and tapping holes

Why not? That was the very first real job I had planned for it. It's going to drill it's own overarm support bushing hole.

http://vts.bc.ca/pics3/hmilldrill.jpg

Milacron of PM
10-18-2007, 05:37 PM
[QUOTE=Evan]Why not? That was the very first real job I had planned for it. It's going to drill it's own overarm support bushing hole.

[QUOTE]

Well, of course you 'can' do it but a screw feed doesn't give you the desirable "feel" for drilling that a rack and pinion would, nor the speed to back out and clear chips as you progress deeper into the hole. The importance of which increases as the drill size decreases. And tapping would be quite difficult unless you used a tapping head or floating tool holder with lots of float.

But this is true of nearly all horizontal mills...no great revelations there....in fact the only horizontal mill that comes to mind that has a moving (via rack and pinion*) quill on horizontal are Deckel mills.


*Y axis, or really Z axis on a strictly horizontal mill. Which is confusing sometimes as Deckel CNC mills are programmed as vertical mills with Y axis designation for front to back table movement, whereas Maho's are programmed as horizontal mills with Z axis designation for the same table movement....even though they are both horizontal mills with vertical heads.

Evan
10-18-2007, 06:37 PM
Well, of course you 'can' do it but a screw feed doesn't give you the desirable "feel" for drilling that a rack and pinion would,
I guess you didn't notice this little item on the Y axis. It provides lever control of the Y axis, just like the X. Also, the table can be removed in a minute or two by loosening the bolts in the immediate background and just about anything else put in it's place. Those bolts engage tee nuts in a circular track with a removal gap.


in fact the only horizontal mill that comes to mind that has a moving (via rack and pinion*) quill on horizontal are Deckel mills.

Maybe it's a Deckel.

http://vts.bc.ca/pics3/hmillyrack.jpg

Doc Nickel
10-18-2007, 07:09 PM
I think he said movable quill, not table.

Doc.

Evan
10-18-2007, 07:30 PM
Heh. I slid the "quill" back on it's track to get some more daylight. I suppose I could nail the rack to the spindle instead and have a movable "quill". This machine is a bag of tricks. Whether it's on the spindle or the table makes no difference to the problems Don pointed out. It is a usable drilling machine.

Milacron of PM
10-18-2007, 08:09 PM
I guess you didn't notice this little item on the Y axis. It provides lever control of the Y axis, just like the X. Also, the table can be removed in a minute or two by loosening the bolts in the immediate background and just about anything else put in it's place. Those bolts engage tee nuts in a circular track with a removal gap.



Maybe it's a Deckel.



No, I didn't notice that...very cool. So there are two levers or the one lever can move either axis ? Definitely not a Deckel though.

Btw, that has to be the most elaborate "arrow" I've ever seen ;)

Evan
10-18-2007, 10:00 PM
I'll set it up and take a pic after supper. I'm running late today. It's a separate system entirely.

oldtiffie
10-19-2007, 01:54 AM
Evan,

very very nice machine and excellent job on restoration and use.

Perhaps some think you should have stuck to good old "Made in USA" "old iron" - circa WW2 - and really "head down and b*m up" stuff, "hogging in" and "making those metal chips fly". Real "ground-breaking" stuff too.

I don't recall any "ChiCOm" stuff from that era though.

As example.

http://i200.photobucket.com/albums/aa294/oldtiffie/B-24nose-down1.jpg

darryl
10-19-2007, 02:26 AM
In true ground-breaking fashion, with absolutely stupendous vertical performance, witness the twin rudder bluntnose special :)

Nice mill, Evan.

Evan
10-19-2007, 05:19 AM
Here is the Y axis rack drive. It doesn't have the quick release on the Y lead screw so one must loosen 1 grub screw on a collar and wind it out instead.

http://vts.bc.ca/pics3/hmillyrack2.jpg

The handle to operate it is missing so I had to improvise.

http://vts.bc.ca/pics3/hmilltrack3.jpg

Your Old Dog
10-19-2007, 05:47 AM
I hope to hell that after all those years of service you didn't gut Scout to fix your latest love? :D

oldtiffie
10-19-2007, 05:47 AM
Here is the Y axis rack drive. It doesn't have the quick release on the Y lead screw so one must loosen 1 grub screw on a collar and wind it out instead.

.....................................
.........................................
The handle to operate it is missing so I had to improvise.

http://vts.bc.ca/pics3/hmilltrack3.jpg

Great stuff Evan.

With that steering-wheel/helm set-up you could really upset the "New York Yacht Club" and win the "America's Cup" (aka the "Auld Mug").

(See http://en.wikipedia.org/wiki/America%27s_Cup as it is a good read).

Evan
10-19-2007, 05:56 AM
I hope to hell that after all those years of service you didn't gut Scout to fix your latest love?

I don't think "Scout" minds...

http://vts.bc.ca/pics3/roverii.jpg

Milacron of PM
10-19-2007, 10:30 AM
That Y axis rack and pinion is neat....I don't think I've ever seen a mill with that feature on the Y axis before.

Evan
10-19-2007, 10:44 AM
Wait till I get at it some. One of the first items will be power drives for the X and Y. I have some really nice and strong servo motors I might use. Then I may make an adapter to run the spindle vertical.

One handy item is the storage cabinet in the base. It will make a nice place for electronics.