Author Topic: Mill Vise From Morrison & Marvin Castings  (Read 3188 times)

Offline Bobsmodels

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #45 on: July 25, 2018, 01:41:04 AM »
Dave

Really nice work.  I certainly appreciate the time you take for the pictures and set-ups which will help me a lot.  Hope you can take some pics of how you do numbers on that angle, I have a few ideas for a setup but would like to see yours. 

Bob

Online Dave Otto

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #46 on: August 12, 2018, 09:07:17 PM »
Hi Guys

Bob, thanks for stopping by and the nice comments, yes I plan to post some pictures of the engraving operation.
Next up is the machining of the nuts screws and thrust bearings.


The nut castings like all the others need little to no fettling. I went over these with a fine file and then bead blasted them.



The nuts were put in the mill vise upside down and clamped on the boss. As you can see they were set on some cardboard strips from the back of a tablet to be used as packing. The nuts were indicated along their length and adjusted to run true. This will insure the as cast features are in alignment with the machined surfaces.



The bottom surface was faced to thickness and then the sides were machined to the proper width. The sides were machined to be symmetric to the boss.



The nuts have been deburred and flipped over. The rebates are machined on each side, once again making sure to keep them symmetric to the cast boss.



In preparation for drilling a very light skim was taken across front face of the nut.



After drilling the 1/4"-28 left hand thread is tapped. The tap had to be ground back to the square drive to have enough clearance.


Using a small precision vise at the proper angle the large bevels were machined on the bottom of the nuts.



The last operation on the nuts was to carefully remove the cast radius on the angled surface of the boss. This is for clearance needed by the ball segment.
This should have been done before the large bevels were machined, then the nut could have simply been clamped on the sides and set at the proper angle. I didnít realize at the time the this radius was going to need to be removed.



The screws are machined form 1144 stress proof steel. I had done the first operations on the CNC lathe at work, including the single pointed left and right hand threads. I must have been having fun, looks like I made a few extras. :lolb:



The next operation was to mill the hex for the vise handle. I used a collet fixture and had the screw standing vertically, then the CNC was use to drive the cutter around the part.



The last operation for the screws was to machine away the excess material.



The stock is removed creating a relief behind the threads for the nut.



Early on Roland and I both searched for a proper thrust bearing for the vise and neither one of us were able to come up with anything small enough. So I decided to see if I could make on that would work. There wasnít much real estate to work with in this area; the 1.5mm balls were chosen because they were readily available and would fit in the space.

Here the ball cage has been drilled in the mill, and now in the lathe it is turned, bored and parted off.


Here is a family shot of two bearing assemblies. The bearing races were machined form O1 tool steel, hardened and ground.



The thrust bearing is assembled on the screw and packed with grease on final assembly.





Here are a couple shots showing how the nuts fit into the vise bodies.

Thanks for checking in.
Dave

Online crueby

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #47 on: August 12, 2018, 09:32:23 PM »
Excellent sequences and explanations Dave!!


 :popcorn:

Offline b.lindsey

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #48 on: August 12, 2018, 09:41:44 PM »
Beautiful work Dave. Those look fantastic!!

Bill

Offline zeeprogrammer

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #49 on: August 12, 2018, 09:52:24 PM »
Wow. The works is just awesome.

Really makes me feel inadequate...but some day...some day!
Carl (aka Zee) Will sometimes respond to 'hey' but never 'hey you'.
"To work. To work."
Zee-Another Thread Trasher.

Offline Johnmcc69

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #50 on: August 13, 2018, 12:39:08 AM »
You would never think these are scaled down versions by looking at the details. Nice job on those thrust bearings!

 Real nice work!

 John

Offline jeff l

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #51 on: August 13, 2018, 04:18:58 AM »
awesome !

Online Dave Otto

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #52 on: August 15, 2018, 12:26:22 AM »
Thanks for all the nice comments guys, they are appreciated.

Dave

Offline steamer

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #53 on: August 15, 2018, 01:46:22 AM »
Now when you getting those done so I can perform extensive consumer testing on the Aciera F1?....

I have a perfect example of the Aciera vise.....perfect in every way....and it's terrible really....I want a mini Kurt!...

50mm  wide   20mm high jaws on the Aciera
http://www.lathes.co.uk/aciera/index.html



« Last Edit: August 15, 2018, 01:51:19 AM by steamer »
"Mister M'Andrew, don't you think steam spoils romance at sea?"
Damned ijjit!

Offline Tennessee Whiskey

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #54 on: August 15, 2018, 08:42:41 PM »
As I told Zee: trying to catch up. Dude, if you ever decide to give up the machining trade; you could go into the presentation of products business. The work is awesome as always, the pictures are crisp and clear, and the narrative is spot on. I have refrained, but, guess I need to get my order in and put them in the aging area with the machinist vice  :facepalm:. Just damn nice work Dave.

Eric

Offline b.lindsey

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #55 on: August 15, 2018, 11:39:52 PM »
The new DX6's are out now Dave. I will have to look but I think there is a DX4 as well.

Just checked, there is a DX4 but it's only 40.00 less than the DX6 if you can handle the larger size now weighing in at 65 lbs.
 
Bill
« Last Edit: August 15, 2018, 11:43:42 PM by b.lindsey »

Online Dave Otto

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Re: Mill Vise From Morrison & Marvin Castings
« Reply #56 on: August 16, 2018, 01:55:15 AM »
Thanks Eric

I appreciate the nice comments, and that you take time from your busy day to look at my projects.
I think the castings are still out a ways so you have some time to ponder it. :lolb:

 :cheers:
Dave