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Member postings for Roderick Jenkins

Here is a list of all the postings Roderick Jenkins has made in our forums. Click on a thread name to jump to the thread.

Thread: Tungsten Alloy
13/12/2018 16:30:22

I've just received a lump of copper tungsten alloy from here **LINK**

Took a couple of weeks to arrive. I calculate the density of my piece at 15.5. This is the only source I have found for small quantities at a "reasonable" price.


Thread: What did you do Today 2018
13/12/2018 15:26:02

Whoops, sorry - Ian J not P. Bit of a coincidence though!

The connector housing is PLA - I haven't investigated printing ABS yet. And yes, the slot is to get at the grubscrews on the flexi connector joining the 1/4" stepper shaft to the 3/8" rotary table shaft. The flexi connector was an Ebay purchase, 6.35mm to 8mm which I had to drill out to .375". The handle on the RT controls the worm engagement so I also had to make a collar with a locking screw to fit on the shaft inside the housing. That was the first engineering job in the new workshop smiley.


13/12/2018 11:31:14

I took advantage of ian p's advert on here for a Steve Ward Rotary controller to attach to my 4" Sharp rotary table.

I'd really only intended this 3D printed connector as a prototype prior to fabricating something in steel but I think it might be robust enough to be a permanent fixture - we shall see!

rotary table.jpg

It all works really well. Ian, you clearly did a nice job of putting the controller together.



Thread: New old 1950's Myford 7 Lathe still in the crate
08/12/2018 13:37:34


Nicely put.



Thread: Unusual Tool
02/12/2018 12:03:43

It looks a bit like a driver for holding a slot head screw. Is the "blade" slightly offset to provide a wedging action?


Thread: Blackening steel parts
28/11/2018 16:47:51

I use the Black-it kit. Got mine from Blackgates but seems to be available from several sources.


I'm happy with the results.


Thread: Top Shelf Content
20/11/2018 16:47:36
Posted by larry phelan 1 on 20/11/2018 16:38:16:

I,d say that driver was looking for another job------Pronto !

If he survived...

That racking must have been vastly overloaded.

Thread: Round belting
15/11/2018 19:31:33

Stationary Engine Parts also stock it: **LINK**



Thread: Death of Model Engineering?
15/11/2018 12:25:05

I think we need to ask Arc, Warco, Chester et al whether home engineering is dying out. My guess is that more hobby machine tools than ever are being sold.


Thread: Pinkgrip
27/10/2018 14:48:35

What would you chaps recommend for sticking Kingspan to the inside of a steel garage door?







Edit: photos added

Edited By Roderick Jenkins on 27/10/2018 15:12:05

Thread: Another workshop insulation question
14/10/2018 13:06:13

Here's my pallet of Kingspan, nominally 50mm. A few are 40mm, which have gone on the party wall and there was one at 60 which has gone on the ceiling.


It's been quite awkward moving around the kit but the weather has been benign so most of the cutting has been done outside.


Two walls and the ceiling finished so far, with much help from my glamorous assistant ( Mrs J)


The softwood ply came from my neighbourhood bargain DIY store at 12.95 a sheet - Fairly crappy and It feels a bit damp but I guess it will dry if I keep the doors open. They delivered 20 sheets for £5. The Kingspan has been fitted between 50mm square battens screwed to the wall and fitted between the ceiling rafters (or are they joists?).



Thread: Carbide threading inserts.
07/10/2018 21:02:27

The alternative is perhaps like these.


07/10/2018 08:47:36

To get back to the original question...

As far as I can make out, the "laydown" bit simply refers to the tip lying flat like a ccmt tip rather than on one edge like a parting tip. Am I right?


Thread: Wyvern cylinder head sealing
02/10/2018 22:17:44

I used some Loctite 5990 **LINK** to seat the valve inserts and head.



Thread: Another workshop insulation question
29/09/2018 15:31:43

Does anybody have any experience of this stuff ? Seems like a U bargain. My bargain pallet of Kingspan is likely to be a bit scrappy so an extra vapour barrier could be useful.



Thread: Machine choice
28/09/2018 16:15:02

I've got a Sharp MkII without a quill. I don't have a problem drilling holes down to 1mm using the rising table. Not as convenient as having a quill but certainly not a show stopper. I do have a substantial bench drill as well, though.



Thread: Engineering For the Tummy
26/09/2018 10:16:25

Where is the drooling emoji?

Thread: Problems with a breadmaker
25/09/2018 09:55:10

We tend to make bread in our Panasonic from various mixtures of wholemeal, rye and spelt.  A teaspon of dough improver from Claybrookmill/Lakeland makes a big difference to the rise and consistency of the product.



Edited By Roderick Jenkins on 25/09/2018 10:00:17 (sorry, I can't make the link work)

Edited By Roderick Jenkins on 25/09/2018 10:04:22

Thread: Beer and Grapefruit
23/09/2018 23:14:47

There's a Canadian bar in a French alpine resort I frequent where the weakest beer available is 5.5%. All the others are 8%+. I remember a pundit opining that making a good tasting beer was easy at 5% but making a great tasting beer at 3.5%, like Brakespears, was where the real skill lies. Fortunately for me, Ringwood brewery is now just down the road and Badger ( I'm particulary fond of Fursty Ferret - pity about the name) is not far away.


Thread: Another workshop insulation question
21/09/2018 08:05:28
Posted by JasonB on 21/09/2018 07:05:09:

Rod if using seconds and relying on the foil for your vapour barrier then buy an extra roll of ali tape so any small holes can be sealed and not just the joints. If you also want to calculate where the "dew point" is within that construction you will find it's in the insulation so any moist air getting to that point will condensate out within the insulation so best to seal so that can't happen.

Jason, thanks, I hadn't considered that. And thank you everybody else for your experiences. It all helps balance the cost/effort/effectiveness equation in this benign ( if possibly slightly salty) climate down here on the south coast.



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