Author Topic: Dividing Head Video Series 1 - 27 (Read 26920 times)

doubleboost · « **on:** August 31, 2013, 06:53:38 PM »

Hi Lads

This series of videos shows my attempt at replicating the dividing head originally built by a Mr Sparey.
Interest was re kindled by Rob Wilson

John

Dividing Head Video Series parts 1 to 27

Pt. 1

Pt. 2

Pt. 3

Pt. 4

Pt. 5

Pt. 6

Pt. 7

Pt. 8

Pt. 9

Pt. 10

Pt. 11

Pt. 12

Pt. 13

Pt. 14

Pt. 15

Pt. 16

Pt. 17

Pt. 18

Pt. 19

Pt. 20
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Pt.21
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Part 22

part 23

Part 24

Part 25
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Part 26

Part 27

S. Heslop · « **Reply #1 on:** September 01, 2013, 12:11:15 PM »

That's alotta videos. It's a very professional looking device and i'm looking forward to seeing it complete.

Pete W. · « **Reply #2 on:** September 02, 2013, 03:01:32 PM »

Hi there, John,

I'm very much enjoying watching this set of videos, as I have enjoyed your previous ones.

But, I have a question (it's not a hard one, I'm sure.):

The Sparey dividing head uses lathe change-wheels to set its division intervals. Your Boxford lathe has a quick change gearbox - where will you source the wheels for your device? Do you already have a set 'in stock'? Will this be the great awaited project when they 'come in handy'?

doubleboost · « **Reply #3 on:** September 02, 2013, 03:40:48 PM »

Hi
Pete
I have a good selection of change wheels
They are easy to find on ebay
John

ParCan · « **Reply #4 on:** September 03, 2013, 01:56:45 PM »

A Superb video blog of this build. Thank you.

You have shown me how to turn between centres and why you should.
You have shown me the basis of cutting threads. If only my top slide would rotate to 27.5 deg.

So when do we see how it works and the tool in action ?

I'd also be interested in a set of castings if you are willing to make me some.

Alex.

Bigbadbugga · « **Reply #5 on:** September 11, 2013, 11:24:56 AM »

I've been waiting for the next installments for ages.

Only spotted parts 20 and 21 on your channel last night John. Exellent work as usual.

Could admin possibly change the title to show the new additions to the thread? Im sure many others will have missed them too.

spuddevans · « **Reply #6 on:** September 11, 2013, 04:26:48 PM »

Quote from: Bigbadbugga on September 11, 2013, 11:24:56 AM

I've been waiting for the next installments for ages.

Only spotted parts 20 and 21 on your channel last night John. Exellent work as usual.

Could admin possibly change the title to show the new additions to the thread? Im sure many others will have missed them too.

Consider it done

Tim

Bigbadbugga · « **Reply #7 on:** September 20, 2013, 06:42:37 AM »

Just for everyone's information, the parts 22 and 23 are on DBs YouTube channel

John, the sky hook looks to be working out very well, some good views of the screw cutting there. I'm still learning loads.

doubleboost · « **Reply #8 on:** September 20, 2013, 03:35:39 PM »

Hi
Lads
Part 22

part 23

Pete49 · « **Reply #9 on:** September 20, 2013, 10:53:08 PM »

An excellent series and well documented. I learned a lot from it

A big thank you from me for the time you took teaching us all in another aspect of our great hobby
Pete

Pete W. · « **Reply #10 on:** September 21, 2013, 05:01:05 AM »

Hi there, John,

Quote from: Pete49 on September 20, 2013, 10:53:08 PM

An excellent series and well documented. I learned a lot from it A big thank you from me for the time you took teaching us all in another aspect of our great hobby
Pete

I wholeheartedly agree, concur and replicate.

You wrote that the design is by 'a Mr. Sparey' - in my estimation, he was 'The Mr. Sparey'!!

Still, I reckon that if he were still with us he too would commend your set of videos.

mechman48 · « **Reply #11 on:** September 21, 2013, 05:32:52 AM »

Super vid as usual john,

like the skyhook much better viewpoints achievable

.
George

doubleboost · « **Reply #12 on:** September 26, 2013, 08:05:18 PM »

Bigbadbugga · « **Reply #13 on:** September 26, 2013, 08:46:04 PM »

Phew!

I was starting to go cold turkey.

Another great installment John.

Brass_Machine · « **Reply #14 on:** September 27, 2013, 09:44:14 PM »

I have split the language discussion off from this thread. It is not the place for it. You can now find the thread HERE.

Remember, keep it civil.

doubleboost · « **Reply #15 on:** September 30, 2013, 06:56:44 AM »

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awemawson · « **Reply #16 on:** September 30, 2013, 07:50:19 AM »

Another excellent video John - keep them coming JUST as they are

lordedmond · « **Reply #17 on:** September 30, 2013, 11:59:26 AM »

No problems here John maybe the person should have worked in a Iron Works

One point would it not have been better to draw the temper with the heat applied from the bottom of the part as it was in the vice and let the colours run up to the work end rather than top down so to speak. I use a sand tray and heat that from the under side with the part on the sand , that way I find in very controllable

Stuart

SwarfnStuff · « **Reply #18 on:** October 01, 2013, 04:32:13 AM »

Don't change John. I don't have a problem you are how you are and provide great videos. Having your camera on the 'sky hook', is a great improvement for you and us. Keep em coming.

Ta,
John B

hermetic · « **Reply #19 on:** October 01, 2013, 02:58:41 PM »

keep em coming just as they are please John,Very entertaining, and Very educational to, I have learned a lot, and I absolutely agree with your "make it as accurately as it needs to be" approach. That's how I do it an all!

Phil East Yorks

mechman48 · « **Reply #20 on:** October 01, 2013, 03:58:13 PM »

Another super video John;

the only difference I do when hardening (last done some years ago when teaching apprentices) was to apply the heat from the bottom up, that's the way I was taught when I was an apprentice, have also used the sand tray method but at the end of the day same result so whatever suits...

As for the language aspect.. keep it as it is, nowt wrong wi' it, if no one has thrown a few B******s, Sh**s, & effin 'ells around then they aint in the real world. Keep 'em coming John,

George.
(Smoggieland).

allanchrister · « **Reply #21 on:** October 01, 2013, 09:09:20 PM »

Do not change your presentation style ever. As an expat 'almost a Geordie' ( born 5 miles from Newcastle) I really appreciate the honest and realistic heart you put into the vids. Just add a few more dialect words- clarty, hjem, gannin, why ya buggah's into the vids and really spread the Geordie language around the world.

doubleboost · « **Reply #22 on:** October 03, 2013, 07:28:07 AM »

mattinker · « **Reply #23 on:** October 03, 2013, 08:00:54 AM »

Hi John,

nice and clear and straight forward as usual!

You've spoken about Al bronze a few times, I am curious about it as I've got copper and Al and I was thinking about making some. I was surprised, it looks and sounds like brass. I'd heard that al bronze was hard and corrosive on crucibles. Could you enlighten me?

Regards, Matthew

Pete W. · « **Reply #24 on:** October 03, 2013, 08:43:30 AM »

Hi there, Matthew,

There's a quite comprehensive book entitled 'Aluminium Bronze' and published by the Copper Development Association, 1939. There are currently several copies listed on Abe Books at quite reasonable prices.

I used to have a copy but sadly gave it away a few years ago! One of the things I do remember is that it's a bit fussy about the way it's fed into the mould when casting. If it's fed two ways the two flows don't always merge properly when they meet in the mould cavity. Also, you have to pour it like you pour lager from a bottle into a glass.

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Author Topic: Dividing Head Video Series 1 - 27 (Read 26920 times)

lordedmond