Author Topic: Mill Vise From Morrison & Marvin Castings  (Read 9298 times)

Offline gbritnell

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #60 on: November 02, 2018, 11:32:19 AM »
Outstanding work Dave! If you don't mind me asking, what kind of camera and light setting are you using?
Each shot is so clear and crisp.
gbritnell
Talent unshared is talent wasted.

Offline b.lindsey

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #61 on: November 02, 2018, 04:10:22 PM »
Loving this thread Dave. Nice to see the update!!

Bill

Offline Dave Otto

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #62 on: November 04, 2018, 05:42:35 PM »
Thanks for the nice comments guys.

George the camera I use for most of my pictures is a Nikon Coolpix P530. I pretty much shoot everything in macro mode with the exposure and f stop set to auto. I do turn off the task lights on the machines or point them away, and try to never use the flash. I also have a Canon Power Shot point and shoot camera that I use at work for the pictures I take there, I don't remember the model though.

Thanks again,
Dave

Offline Don1966

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #63 on: November 04, 2018, 08:56:38 PM »
Dave some awesome work as always coming from your shop, but bud sprinkle a few metal chips around so we know you did some actual work......... :lolb: just to damn clean man with awesome photos.... but you know .......I.........like.......... :Love:


 :drinking-41:
Don

Offline Dave Otto

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #64 on: November 06, 2018, 12:03:57 AM »
Thanks Don!
I'm glad to see you checking in.

Dave

Offline Dave Otto

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #65 on: November 06, 2018, 12:05:31 AM »
Hi Guys
Here are a few shots of the jaw plate machining; the jaw plates are machined form 01 tool steel and heat treated.


The first operation was to profile the plates and put the screw holes and counter bores in. I neglected to take a picture of the second operation; the parts were flipped over and faced to thickness.



The jaw plates were bagged up and heat treated in my small furnace.



The bags were carefully opened and the plates quenched in oil.



After tempering, the front and back surfaces were ground to clean them up and insure that they are flat.



After the front and backs were ground they were mounted on a fixture in pairs and the top and bottom surfaces were ground.



Here is a trial assembly of all the parts made so far.


More to follow.
Thanks,
Dave

Offline Dave Otto

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #66 on: January 13, 2019, 11:53:08 PM »
Hi Guys
Below are quite a few pictures outlining the steps I took to machine the vise handles.


The handle castings were a little banana shaped from the foundry; it appears that maybe they let the waxes get warm and they warped before they got around to casting them. Not a big deal the 4140 steel is very strong and springy so it can be straightened without fear of breaking.
The two piece handle was cast as one piece with the internal hex cored in the yoke. I decided to start out working on it by leaving it in one piece. Here I’m doing some final straightening; the initial straightening was done in my arbor press.
One note; because of the difficulty in getting good castings Roland is now having these cast as separate parts.


A mandrel was made that is a tight push fit in the cored hex of the yoke.


With the yoke end pushed on the mandrel and supported by a live center the profiling of the yoke is done. I also chose to clean up the tapered section with some emery cloth.
The center hole was put in with the casting held in a 4 jaw chuck, no picture of that operation.


Here are 3 of the handles ready for the next operation.


With the casting flipped around and chucked on the excess stock, the yoke is parted off.


A split bushing was made to hold the yoke to drill for the pin; the bushing is also counter bored on the back side to clear the larger part of the yoke. This allowed me to slide the yoke in from the back end of the bushing with enough sticking out that I could face and chamfer the end; this was done in the lathe. I could have done the OD chamfer during the parting operation but not the ID. This makes a better looking part as everything is done in one setup.
Here the yoke is aligned with the collet block using a gauge pin and dial indicator.


In the mill the cored hole is dialed in, drilled and reamed for a slip fit on the dowel pin.


The aluminum ball is held in a collet and backed up with a collet stop; it is faced, drilled and taped.


A couple sets of jaw plates were made to match the taper of the handle, always good to have a spare.
These were done using a ball end mill and 3d tool path in the mill.


Using the jaw plates the handle is indicated in


Then turned and ready for threading.


The threads were single pointed


Checking the fit of the ball.


Here are some of the parts so far.


The handle needs a chamfer where the round meets the square. Here running the lathe in reverse and cutting on the back side a carbide boring bar is used for this operation.


The jaw plates will be used to do the finish machining on the square end of the handle.


Clamping lightly the flat is aligned, then tightened up


Next the cored hole is dialed in.


The handle is rounded and the hole drilled and reamed for a press fit on the dowel pin


After bead blasting and assembly it is time for a test fit on the vise, I’m quite pleased with how the handles turned out.


Thanks for checking in.
Dave

« Last Edit: January 14, 2019, 02:32:25 AM by Dave Otto »

Offline b.lindsey

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #67 on: January 14, 2019, 12:02:59 AM »
Lot of work in those handles but they sure look the part and a lot prettier than the original Kurt handles too!!

Bill

Offline steamer

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #68 on: January 14, 2019, 12:03:10 AM »
That vise is delightful!!!!

Dave
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Offline Tennessee Whiskey

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #69 on: January 14, 2019, 12:07:12 AM »
Well, if that’s the best you can do, I guess we’ll have to live with it  :lolb: :lolb:; at least you got rid of the swarf this time  8). Seriously, awesome as always old pal. Hey, have you looked at Lipton’s sensitive drill attachment video he just posted? He had the lever printed by Shapeway: just thought about it when I was reading this. 21st century “casting” I guess  :thinking:.

Cletus

Offline steamer

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #70 on: January 14, 2019, 12:18:55 AM »
Well, if that’s the best you can do, I guess we’ll have to live with it  :lolb: :lolb:; at least you got rid of the swarf this time  8). Seriously, awesome as always old pal. Hey, have you looked at Lipton’s sensitive drill attachment video he just posted? He had the lever printed by Shapeway: just thought about it when I was reading this. 21st century “casting” I guess  :thinking:.

Cletus

Ok now brotha...you're holdin out on me ....send me a link to this sensitive drill attachment.
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline Dave Otto

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #71 on: January 14, 2019, 12:34:14 AM »
Thanks guys!

Love Tom's videos, I did watch the new one on the sensitive drill attachment.
I will keep trying harder, honest I will.  :lolb:

Dave

Offline 90LX_Notch

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #72 on: January 14, 2019, 12:56:12 AM »
Some slick machining there Dave.

-Bob
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Offline Johnmcc69

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #73 on: January 14, 2019, 01:33:00 AM »
Really beautiful work there dave.  :ThumbsUp:

 John

Offline 10KPete

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #74 on: January 14, 2019, 01:52:02 AM »
All I can afford to do is drool....   :P

Pete
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