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building the Gingery dividing head
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S. Ronin McGowan
Hey, congrats on getting it pretty much done! On Tue, Dec 6, 2022, 2:30 AM Thomas Janstrom <thomas@...> wrote: Wow! Really two plus months gone since my lat update uon this project? |
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Terry Coombs
On 12/6/2022 9:42 PM, Thomas Janstrom wrote:
Yep mag wheels for stock, PITA to break up but casts nicely and machines Drop your castings in cold water straight out of the mold . That will help with the "gumminess" you often find in fresh castings . -- Snag “Free speech is my right to say what you don’t want to hear.” -George Orwell |
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Thomas Janstrom
Yep mag wheels for stock, PITA to break up but casts nicely and machines ok (I'd need an oven to heat treat for better machining properties).
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John Dammeyer
It's all about the process. Learning to cast and machine. Adapting. Awesome. John
From: gingery-machines@groups.io [mailto:gingery-machines@groups.io] On Behalf Of Thomas Janstrom
Sent: December-06-22 2:52 PM To: gingery-machines@groups.io Subject: Re: [gingery-machines] building the Gingery dividing head
The plates (I have the full set plus a spare plate) are Brown and Sharp from a head the local machine shop broke, best $50 I spent, and they just happened to have 1 1/8" bore too... |
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Thomas Janstrom
The plates (I have the full set plus a spare plate) are Brown and Sharp from a head the local machine shop broke, best $50 I spent, and they just happened to have 1 1/8" bore too...
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John Dammeyer
Nicely done! I'm guessing mag wheels for raw stock? John
From: gingery-machines@groups.io [mailto:gingery-machines@groups.io] On Behalf Of Thomas Janstrom
Sent: December-06-22 1:37 AM To: gingery-machines@groups.io Subject: Re: [gingery-machines] building the Gingery dividing head
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Bruce J
Very nice!
-- Bruce Johnson "Wherever you go, there you are." B. Banzai, PhD |
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chris eigenheer
Nice. Did you drill all those holes by hand? When I built mine I had my neighbor with a small cnc machine drill the plates for me. Saved me a lot of time. Good job on the accomplishment. It’s a much larger project than people realize…
Chris
New Brunswick, Canada
From: gingery-machines@groups.io <gingery-machines@groups.io>
On Behalf Of Thomas Janstrom
Sent: December 6, 2022 5:37 AM To: gingery-machines@groups.io Subject: Re: [gingery-machines] building the Gingery dividing head
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Thomas Janstrom
 finished dividing head  Drilling the spindle, note the chuck failure.  Casting the sector arms and the selector arm.  Trial fit up. |
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Thomas Janstrom
Interesting, I can see them just fine. Is there a size limit on embedded photos?
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John Dammeyer
Sadly the photos didn't make it through.
From: gingery-machines@groups.io [mailto:gingery-machines@groups.io] On Behalf Of Thomas Janstrom
Sent: December-06-22 12:30 AM To: gingery-machines@groups.io Subject: Re: [gingery-machines] building the Gingery dividing head
Wow! Really two plus months gone since my lat update uon this project? |
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Thomas Janstrom
Wow! Really two plus months gone since my lat update uon this project?
Anyway its now finished, I opted for some secondhand Brown and Sharp plates instead of making my own (or using the cheap chinesium ones I found online). The spindle is hollow and bored for a #0 Morse taper for the dead centre and the face plate is mounted via a htread with taper journal to give a positive seat as threaded mounts are not all that accurate. I plan to at some point mill 4 T-slots in the face plate to go with the 4 tapped holes. The tail stock is one that came with my mill and fits a tiny dividing head (2" 3 jaw chuck). Anyway thats where I'll have to leave things as I'm moving house to get the workshop out of a major flood zone (1.8m or 6' of water through earlier this year).  drilling and boring out the spindle for the dividing head, note vintage chuck failure...  casting the sector arms  Trial fit up prior to milling the bevels on the sector arms and sloting the pin arm.  The finished dividing head. There will be a bit of a video in the new year once I get settled in the new place, but for now thats all I got. Cheers. |
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Thomas Janstrom
yeah, and accounting for wear over the past 20 odd years is hard too. The carriage and cross slide/compound need work, I might end up hogging them out now that I have a mill.
https://youtu.be/dGg8vIseXoE part 8 mostly milling parts as I'm waiting on bushings to arrive in the mail |
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Very cool! Really drives home the discussions regarding the importance of rigidity and close tolerances on all surfaces, locking unneeded moving parts, etc. On Wed, Jul 21, 2021 at 4:16 PM Thomas Janstrom <thomas@...> wrote: Making some progress on machining the castings... And the worm and wheel finally arrived, I wish I could have sourced these locally but ended up having to have them shipped from the USA at a greater cost then the parts. |
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Nice! I've considered making one too. Like Bill, I ended up buying a lathe, vertical mill, and shaper. But I am thinking about building the horizontal mill and maybe dividing head. I have invested in a set of ER40 collets and tool holders to use with my mill and was looking for an ER40 spin indexer but there don't seem to be any. 5C indexers are pretty cheap-ish on ebay, but I would have to buy a 5C-ER40 adapter to use one. And then that could be used in the Sheldon lathe, with an adapter. And a tailstock to be used with either the spin index or dividing head could be used on the mill table and possibly the shaper too On Thu, Jul 8, 2021 at 8:39 PM Thomas Janstrom <thomas@...> wrote: So I bit the bullet and decided buying a dividing head was not an option, all I could find were too big for my machines or too small for the project or just plain junk... Anyway here's where I'm at as I now await parts to arrive. |
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Left you a comment, and a thumb up. I envy your shop! And it's going to be much better! I've sent you an invite to join the Metal-Shapers-and-Planers group at groups.io. We don't have cookies, unfortunately, but we do have a manual for your shaper. I sort of bypassed the building of gingery machines to buy ready-built or restorable machines, but I'm seriously looking at building the dividing head you're doing. I figured with the skill level I had at machining and making stuff I'd never have a shop if I did it the Gingery way. I'm far enough along in that process now that I can see my way to doing some of those things here in the near future, so I don't completely lose out of the learning involved. Bill in OKC William R. Meyers, MSgt, USAF(Ret.) A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects. LAZARUS LONG (Robert A. Heinlein) On Thursday, September 16, 2021, 05:55:39 AM CDT, Thomas Janstrom <thomas@...> wrote: Look for the video called "Things are starting to shape up"... This will be one heck of a project as you will see. |
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Thomas Janstrom
Look for the video called "Things are starting to shape up"... This will be one heck of a project as you will see.
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Braggart! ;)
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I was going to go back to sleep, but now I have to watch your video. Two subjects dear to my heart in one video. Bill in OKC William R. Meyers, MSgt, USAF(Ret.) A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects. LAZARUS LONG (Robert A. Heinlein) On Wednesday, September 15, 2021, 06:16:35 AM CDT, Thomas Janstrom <thomas@...> wrote:
Part 7: https://youtu.be/p1yLskAKI4A Had some interesting things crop up that needed doing, like picking up an 18" stroke shaper... |
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Thomas Janstrom
Part 7: https://youtu.be/p1yLskAKI4A
Had some interesting things crop up that needed doing, like picking up an 18" stroke shaper... |
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Thomas Janstrom
Part 5: https://youtu.be/PaN6dLy_4ss
Part 6: https://youtu.be/IChHxQg20JI |
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