Kerry drill model

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Kerry drill model

This topic has 17 replies, 9 voices, and was last updated 24 January 2017 at 16:43 by Steve Addy.

Viewing 18 posts - 1 through 18 (of 18 total)

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17 November 2015 at 18:44 #31102
Tractor man
Participant
@tractorman
Newest project on the bench
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17 November 2015 at 18:44 #212861
Tractor man
Participant
@tractorman
Hi all,

As stated elsewhere I have begun a new project, copying the Kerry Super 8 pillar drill I use in my workshop.

I thought it would be a nice easy little project until I remembered the backgear mechanism which I will have to replicate to scale if I am to get it to work properly.

I've never cut gears before so there is something for me to learn before starting the head. Do I need a dividing head or some such? I have a horizontal mill and a vertical so hope I can produce spur gears on either one.

The base is together now and took me a couple of weeks to fabricate from scratch, the main base is a lump of cast aluminium from a Hemingway kit that was going spare in the shop.

The tool tray/head support collar is made from steel bar and a lump of old cast iron from a garden sign, you can tell why I used the sign from the attocious spelling error on it.
17 November 2015 at 19:55 #212877
Tractor man
Participant
@tractorman
Just a photo of the items completed so far.
17 November 2015 at 20:08 #212883
JasonB
Moderator
@jasonb
Off to a good start

A rotary table with index plates or a dividing head would be the best bet but depending on the Number of teeth required you may be able to bodge something up with lathe change gears and a simple indent.

J
5 January 2016 at 22:30 #219596
Tractor man
Participant
@tractorman
I have made a little more progress on the model in between renovating my new machinery and sorting out Christmas lol.

The table support was made as a fabrication of cast iron parts machined to shape and then finished on a belt machine to resemble the original castings.

I think it looks about right on the pillar so I will continue to finish the clamp screws etc before painting.

Then its planning the head machining process, not exactly sure how I am going to tackle it but I will sketch out a plan in my head and then see how it goes. I have sourced ready cut gears from HPC Gears to make the back gear train so that I avoid the gear cutting. I will still have to produce a rack and pinion for the quill.

More later I hope.
5 January 2016 at 23:52 #219607
MalcB
Participant
@malcb52554
That's looking quite a smart job coming on.

Oh how I miss my Kerry bench drill.
29 January 2016 at 19:27 #223080
Tractor man
Participant
@tractorman
A little progress on the work table. I can now start on the actual drill head. Can't wait for that lol
23 April 2016 at 20:00 #235901
Adam
Participant
@adam
Is there any update on this? I have two kerry drills, I think they’re fantastic!
23 April 2016 at 22:21 #235910
Tractor man
Participant
@tractorman
Hi all. By way of update I have to report all workshop operations have been suspended until further notice by SWMBO or at least until we have moved house. Crikey I have a lot of stuff!
I have found a local machinery moving firm and I’m letting them take the strain.
As regards the kerry I have made inroads into shaping the head casting and managed to find the right rack cutter to machine the quill rack.
I will post some pics tomorrow. Mick
5 May 2016 at 19:48 #237652
Tractor man
Participant
@tractorman
Hi again. Got sidetracked so didn’t get chance to get in the shop to take pics so hopefully some from my phone will be in my album. Regards mick
5 May 2016 at 19:59 #237653
Tractor man
Participant
@tractorman
Can’t add pics to this message on my phone so you will have to view them in the album. Mick
14 December 2016 at 16:05 #271765
Tractor man
Participant
@tractorman
So. After moving house lock stock and barrel and spending all my time getting the new place up to scratch I am finally making inroads into my new workshop. I’ve had a sectional concrete one built to augment the garage space I already have. Just shifting things across now so I can start machining. Miraculously I have found all the parts for the Kerry drill project and I can restart it soon. Watch this space lol.
14 December 2016 at 16:47 #271784
Michael Gilligan
Participant
@michaelgilligan61133
Posted by Tractor man on 14/12/2016 16:05:05:
Miraculously I have found all the parts for the Kerry drill project and I can restart it soon. Watch this space

.

Great news … I'm looking forward to it

MichaelG.
14 December 2016 at 16:54 #271790
Neil Wyatt
Moderator
@neilwyatt
Nice!

That's one model we could feature in MEW

Neil
14 December 2016 at 17:32 #271808
David Standing 1
Participant
@davidstanding1
Mick

You have too much time on your hands!

And yes, I am jealous……….

And yes again, I can't wait to see this finished .
14 December 2016 at 17:48 #271815
kevin beevers
Participant
@kevinbeevers61752
nice work there looks great
24 January 2017 at 16:31 #279928
Steve Addy
Participant
@steveaddy35670
That is a lovely job. I have a hybrid Kerry Meddings drill as the base casting on a Meddings I bought was found to be cracked when I got it home and cleaned it. I bought a Kerry like this from a well known auction site as it had a nice column and was a floor standing machine unlike the bench Meddings. As I then found that the Kerry had suffered dentistry on the quill rack I made a hybrid from the two. Head and table are Meddings, rest is Kerry.

On the gear cutting question, get yourself a copy of Ivan Law's book on the subject. I bought a job lot of the Brown and Sharp cutters (guess where from) and designed my loco gearbox around the cutters I had in stock. The calculations for the safe power transmission capacity were found in a Machinerys Handbook, but that shouldn't be required for your model. I used a Vertex BS0 dividing head on an old Denbigh miller. The gears came out great for a first time effort. I'll pop a couple of pictures on shortly.

Edited By Steve Addy on 24/01/2017 16:36:19
24 January 2017 at 16:43 #279933
Steve Addy
Participant
@steveaddy35670
Milling gears on the Denbigh H4 Auto of 1930s vintage

Finished gears mounted on their shafts. Small ones are 10DP larger ones are 8DP.
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