Author Topic: Graduating Tool  (Read 15749 times)

Offline Don1966

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Graduating Tool
« on: January 04, 2013, 03:12:11 AM »
I have been working on this project for a couple of days now and have not posted any photos about yet. So tonight I will post the finished tools and when I get a chance do a write up log showing the process to complete it. So stay tune tomorrow and I will have the built log. This tool is used to make graduations on dials.
One of the reasons I don't want to post tonight is I need to resize all photos as you will see from this one.
Don


Offline 90LX_Notch

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Re: Graduating Tool
« Reply #1 on: January 04, 2013, 03:22:26 AM »
Don-

That is sweet looking.  I can't wait to see the build log.

-Bob
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Offline rudydubya

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Re: Graduating Tool
« Reply #2 on: January 04, 2013, 06:49:23 AM »
Looks interesting Don.  Looking forward to your build log and some examples of its use.

Regards,
Rudy

Offline tel

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Re: Graduating Tool
« Reply #3 on: January 04, 2013, 08:10:56 AM »
Looks good, and if you could incorporate a three position stop it would be perfect!
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Offline Stuart

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Re: Graduating Tool
« Reply #4 on: January 04, 2013, 08:24:04 AM »
Tel

its the dial on the top

I assume its a Hemmingway kit the dial as built gives a set stop and three depth ones with detent for each

when I did mine when I was building my Quorn I used 0 ,1 ,2,3 mm

they work very well but 360 divs take time .

the only change I would make to the OP build is to make the stop rod nut from steel as they do need to be tightened up very well , don't ask I know


very nice build tho

Stuart
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Offline Jo

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Re: Graduating Tool
« Reply #5 on: January 04, 2013, 08:28:42 AM »
Looking forward to hearing all about it Don 8).

Jo
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Offline tel

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Re: Graduating Tool
« Reply #6 on: January 04, 2013, 08:51:07 AM »
Thanks Stuart - I missed that point, tho' I can see it now you have pointed it out ;D
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Goldstar31

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Re: Graduating Tool
« Reply #7 on: January 04, 2013, 08:59:28 AM »
This is a development from the Jack Radford design but there was an automatic( or nearly) design which started in ME in 21 Aug 1981.It then developed into an automatic mode in 5th March 1982 issue.

There is the thing made on a ML10 on the front of MEW dated June/July 1993

Regards

Norman
« Last Edit: January 04, 2013, 04:29:29 PM by Goldstar31 »

Offline Bearcar1

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Re: Graduating Tool
« Reply #8 on: January 04, 2013, 10:12:03 AM »
Nice tool Don. I'm anxious to see what all you had to do to arrive at the finished product. It certainly is quite useful looking.


BC1
Jim

Offline Don1966

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Re: Graduating Tool
« Reply #9 on: January 04, 2013, 01:56:25 PM »
The tool by the way is a Hemingway Kit it had been redesigned by them. The terrut rotates to three different hole depth positions for the  1, 5, and 10 graduatings and the final zero position is the forth.
It does work rather well and a tool bit can be puton either end. I will post today.
Stuart you are correct the nut is hard to tighten up and needs to be snug.

Don

Offline steamer

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Re: Graduating Tool
« Reply #10 on: January 04, 2013, 03:49:47 PM »
Looks great Don!

Look forward to the write up!

Dave
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Offline Don1966

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Re: Graduating Tool
« Reply #11 on: January 04, 2013, 04:16:07 PM »
OK as promise a write up. I first started with a 1" x 1" square stock chucked in the four jaw and bored it to dimensions. Thie dimensions were to fit some oil lite brass bushings that the ram will fit in. This went rather well and I managed to get it spot on. I Then clamped it into the Mill to cut the slot for the ram pin. First predrill mulit hole to smaller size than finishing with final size mill bit. I completed all holes but the turret detent holes as you will see why later.

Boring out the ram opening

Milling the ram pin opening

This shot I was boring out the ram stop bar with a full drill bit as you can see the swarf was filing.

A start at making the turret screw not much just basic turning and parting off

and a shot of the complete turret screw

progress thus far I have not finish the holes in the ram body yet

next I started making the handle brass bolt and nut and this is what happens when you get to aggressive with parting off brass.

this time I managed to do it right
« Last Edit: January 04, 2013, 04:29:52 PM by Don1966 »

Offline Don1966

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Re: Graduating Tool
« Reply #12 on: January 04, 2013, 04:48:12 PM »
I managed to get a good start a making the turret and there is a sequence to completing the turret. I cut the 1" stock down to .785" a give length and then a section down to .990" for fine knurling. Then bored the hole for mounting. After boring I parted it off the parent stock and move it to the mill to drill the one an only hole in the top. This hole is for a set screw use for the detent which will hold the spring and ball. This hole will also be used to mark out the top of the ram cylinder as you will see.

turning the turret down to size

completed knurling, I was very happy with this knurl job as it went smooth.

reamed and parted off the parent stock

squared and drilled out the clamp bar used to hold the graduating tool to the lathe

squared and drilled the side plate. The side Plate also hold the clamp bar and I had to do a mock set up to get the hole pattern height to proper align it to the quick chang tool post.

just what to show you my primitive tap set up. I am in the process of making a Pillar Tool which will have a tapping handle on it. That will be another thread later.

This is the mock up I did to get the height set properly for drilling the clamp bar holes.
« Last Edit: January 04, 2013, 05:44:50 PM by Don1966 »

Offline Don1966

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Re: Graduating Tool
« Reply #13 on: January 04, 2013, 05:12:05 PM »
Ok back to the turret and we needed to do a mark up of the outer parameter. First was to install the turret, ram stop bar which had been drilled earlier and rod clamp and nut along with the stop rod. The stop rod had to be sharpen to a fine point so we can now scribe the line, it will be rounded off after this. After scribing the line the turret was move to the mill on to the RT for drilling our stop holes. These stop hole will set the length of the scribe lines when making dials, We have three holes to drill. The first point on the turret is zero position and this will be where we put the set screw. The middle hole will be our ones depth and the two other will be the 5 and 10 hold depth. I made these .075,.150 and .150. After completing these holes we need to reassemble it back on the ram cylinder for mark up of the detent holes. Now that we have the stops for the stop rod to lock in using a transfer punch to mark the parameter with four punch marks one for all detent positions.

getting ready to scribe the line for drilling the stop holes

drilling out the stop holes in the outer parameter

marking out the detent holes on the top of the ram cylinder. Remember this was the holes we did not want to drill at the bigging of the thread so we could get good alignment.

a start at making the handle drill out the slot. I first predrill holes smaller and finish with the final size mill.

I then move it over to the rounding table to round off the ends.

the handle all complete with knobs.
« Last Edit: January 04, 2013, 10:50:28 PM by Don1966 »

Offline Don1966

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Re: Graduating Tool
« Reply #14 on: January 04, 2013, 05:21:19 PM »
Now that we have the turret and ram all drilled and complete I made the marking tool from a 5/16" HSS bit and sharpen it to a V point. All holes in the ram were drilled and I assembled the tool and installed it in the lathe to give it a try. I hope you enjoyed this little thread as much as I enjoyed making this tool. I also had a chance to use my new mill. It handles really well and will be glad when I get the DRO installed on it. The scales that were sent were the wrong ones and had to be sent back, long story.

anyway a shot at the tool in action and I was very pleased with the results.





Don
« Last Edit: January 04, 2013, 10:52:18 PM by Don1966 »

Offline ScroungerLee

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Re: Graduating Tool
« Reply #15 on: January 04, 2013, 05:49:55 PM »
Nice write up, thank you.  I am adding this to my file of things to make when needed for a project.

Lee
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Offline arnoldb

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Re: Graduating Tool
« Reply #16 on: January 04, 2013, 06:03:46 PM »
Very nicely done Don  :ThumbsUp:

I wish I had this tool for some of the jobs I did in the past...  Would have made life a whole lot easier  :)

Kind regards, Arnold
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Offline Don1966

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Re: Graduating Tool
« Reply #17 on: January 05, 2013, 12:59:28 AM »
Thanks guys for your comments and I do hope you enjoyed the thread.

Don

Offline steamer

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Re: Graduating Tool
« Reply #18 on: January 05, 2013, 01:07:52 AM »
Great write up Don!   Well Done! :praise2: :praise2: :praise2: :praise2: :praise2:
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Offline smfr

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Re: Graduating Tool
« Reply #19 on: January 05, 2013, 04:59:22 AM »
Great tool and a good write-up. How many times do you push the handle for each line; just once, or several?

Simon

Offline rudydubya

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Re: Graduating Tool
« Reply #20 on: January 05, 2013, 06:54:47 AM »
Nicely done and documented Don.  Thanks for sharing.   :ThumbsUp:

Regards,
Rudy

Offline zeeprogrammer

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Re: Graduating Tool
« Reply #21 on: January 05, 2013, 02:19:08 PM »
Almost missed this. Glad I hadn't.
Very nice tool. Thanks for posting this. I'm sure it will be helpful to a lot of people.
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Offline Don1966

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Re: Graduating Tool
« Reply #22 on: January 05, 2013, 02:47:36 PM »
Thanks Carl, Ruby, Dave and Simon for you comments.
Simon it only takes one stroke per line. Once you set your cross slide  to depth of cut. These are dials so you don't want to cut to deep..

Don

Offline swilliams

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Re: Graduating Tool
« Reply #23 on: January 14, 2013, 05:34:36 AM »
Only just caught it Don. Very nice little tool that

Steve

Offline Pete49

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Re: Graduating Tool
« Reply #24 on: January 15, 2013, 03:02:06 AM »
Nice tool Don. Very similar to the one posted in the latest MEB. Its on my 'tools I want list' Dunno why but think its a neat tool to make and your build log proves it  :ThumbsUp:
Pete
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Offline Don1966

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Re: Graduating Tool
« Reply #25 on: January 15, 2013, 04:34:01 AM »
Thanks Steve and Pete for looking in. Pete I am sure you will find uses for it. I have a project coming up that will need graduating. One of the reason for making it. I also have a spherical turning tool kit that I will be doing as soon as I get a chance. When ever that will be, work is starting off great this year.

Don

Offline Mosey

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Re: Graduating Tool
« Reply #26 on: January 15, 2013, 01:57:39 PM »
Ok back to the turret and we needed to do a mark up of the outer parameter. First was to install the turret, ram stop bar which had been drilled earlier and rod clamp and nut along with the stop rod. The stop rod had to be sharpen to a fine point so we can now scribe the line, it will be rounded off after this. After scribing the line the turret was move to the mill on to the RT for drilling our stop holes. These stop hole will set the length of the scribe lines when making dials, We have three holes to drill. The first point on the turret is zero position and this will be where we put the set screw. The middle hole will be our ones depth and the two other will be the 5 and 10 hold depth. I made these .075,.150 and .150. After completing these holes we need to reassemble it back on the ram cylinder for mark up of the detent holes. Now that we have the stops for the stop rod to lock in using a transfer punch to mark the parameter with four punch marks one for all detent positions.

getting ready to scribe the line for drilling the stop holes

drilling out the stop holes in the outer parameter

marking out the detent holes on the top of the ram cylinder. Remember this was the holes we did not want to drill at the bigging of the thread so we could get good alignment.

a start at making the handle drill out the slot. I first predrill holes smaller and finish with the final size mill.

I then move it over to the rounding table to round off the ends.

the handle all complete with knobs.


I would love to know more about your "rounding table", please.
Mosey :noidea:

Offline Don1966

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Re: Graduating Tool
« Reply #27 on: January 16, 2013, 12:57:10 AM »
Mosey the Rounding table is nothing new, Cedge did a post on it on MEM I just winged it and built what I saw. Marv also has a Rounding table on his site. It is a 6"  table with a center hub in bottom with a 5/16 rod sticking out. The set screw you see on the bottom holds the center rod snug and allows adjustment of its height. The bottom hub is made from 1/2" aluim rod. The set screw pushes another piece of aluim rod to act as a brake, thus this holds the center rod. A slot is also milled on the side to allow the endmill to go below the work you are working on. On the bottom is a piece of 1" x 1" aluim bar to hold the table and the brake. The table is attached to it. Also holes are drilled in the slot of the table to allow Swarfrat to pass through. It is really a very simple setup but works great.

Correction on the rod it is a 3/16 rod or could be smaller if desired or bigger.it all depend on how small or large of radius you want to do, and by making it smaller you can make small reducers for bigger holes.

Don
« Last Edit: January 16, 2013, 03:42:01 AM by Don1966 »

Offline gerritv

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Re: Graduating Tool
« Reply #28 on: August 20, 2017, 02:35:47 PM »
Don't confuse activity with progress

 

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