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Member postings for Speedy Builder5

Here is a list of all the postings Speedy Builder5 has made in our forums. Click on a thread name to jump to the thread.

Thread: Elephant Hawkmoth
19/08/2012 11:42:12

here is an Empreor moth (Saturnia pavonia) we saw in our garden in SW France, about 4" over the

wing wing ti wing tipspic 022.jpg

Thread: Whistles
16/08/2012 19:33:25

Thanks for the info Michael - I think that just about wraps it up.

16/08/2012 12:22:21

If I make a whistle to LBSCs design for Speedy, and test it on compressed air, would I get the same/similar results when used with steam. I will be using a bit of brass tube from a crumpled trumpet picked up at a car-boot sale for 50p. Why? I read that ordinary brass tube does not resonate the same as "Music quality brass" !!

Thread: Speedy boiler
16/08/2012 12:13:25

Building the boiler for LBSCs 5" Speedy loco. What working and test pressures should I be using on a silver soldered copper boiler ?

Should the boiler pressure gauge be 0 - working pressure + 20psi or should it be 0 - test pressure + 20 psi ?

Thread: Suds pump
17/07/2012 19:58:50

Good call BUT, I used one with its pkastic resevoir for a couple of years before the peristaltic tube gave up as it was impregnated with small shards of metal. Replaced the tube and again it failed a year or two later. By the way, you have to do a bit of re-wiring of the float switches, but its not difficult.

You do need a realy good filter before the return pipe from the lathe / mill etc.

I now use a small indoor pond pump - but it doesn't have much of a head.

On the single phase lathe, I have a 3 phase dual voltage suds pump, running on 240v single phase. Connect live and neutral on two of the terminals, and a capacitor across the other two. Ok you loose 60% of the power, but there is heaps left for the pump.

Thread: Milling Copper
04/07/2012 12:26:27

With great care - a splinter of copper in your eye and you could end up blind. I have used a jig saw quite successfully with the sheet sitting on top of a sheet of closed cell insulation. Then cut thro the sheet and insulation together. Wear goggles as a minimum.

Thread: workshop lighting
27/06/2012 20:44:52

I have flourescents and incandecent lights plus anglepoise all switched separately. I use the incandecents when you just 'pop in' for a screwdriver - extends the life of flourescents. I have tried low energy, but to date have not found any bright enough, and they DO TAKE TIME TO WARM UP.

Thread: Reaming Brass
27/06/2012 20:39:07

I bought some strange reamers some time ago, they have 3 or 4 flutes machined on a quadrant of about about 100degrees and on the rest of the diameter (260 deg) there are NO flutes.. I was told that they may be for thin sheet. This probably doesn't hep you, but another trick was to put some rag around the reamer to 'fill' the flutes and reduce chatter. Use talow or lard as cutting lubricant.

Thread: Which New Mill Vice?
27/06/2012 16:11:01

For me, this is a precision vice, and I often have to grip 'rough' castings. I would not like to 'bash' the vice handle too hard on this one. However it look a nice bit of kit.

Thread: Chuck for Rotary Table
21/06/2012 19:26:55

Just be aware that a chuck can 'Un-screw' from the rotary table if you do some heavy milling in the wrong direction !! Try to think of some sort of locking device. I use one of my lathe chucks mounted onto a false nose piece welded to a flat plate, then clamped to the table. I crossdrilled the chuck/nose piece and place a pin into the hole to stop it unscrewing at the critical moment.

Thread: Uses for old hard drive platters?
06/06/2012 12:20:03

Suprise the wife and make her a super three tier cake stand - then she couldn't refuse but make you a cake.

Make a stand with 3 discs and suitable spacers, drill through the top 2 discs and store all your taps and clearing / tapping drills in them - like a drill stand.

Mount about 20 discs with spacers in between onto a broom stick. Point it at your neighbours bedroom - and wait !!

Thread: Stainless steel boilers
29/05/2012 17:43:14

Come and live in FRANCE. There has never been an instance of a stainless steel model boiler failing and they are quite popular. However I have to say that the testing regulations are VERY different to the UK - that said I havn't heard of a model boiler accident be it copper, mild or stainless steel.

Thread: De Burring inside of boiler stays
29/05/2012 17:38:07

I am building a 5" Speedy boiler, and find it difficult to de-burr the stay holes inside the boiler wrapper. I have a short stub of a drill mounted in a wooden knob, but it is difficult to get a nice 'countersink' ready for silver soldering. Any ideas ?

Thread: How to set up a dial bore gauge against bearing?
14/05/2012 12:31:30

It might help if you held the mike in a home made clamp/stand - perhaps made of wood so you don't damage the mike. That woulod leave both hands free to manage the bore gauge.

Thread: After pickle wash
14/05/2012 12:25:58

Just done a pickle and washed in rainwater (not much acid rain where we live). Came out a lot cleaner.

13/05/2012 17:26:34

Using dilute sulphuric acid as a pickle, and copper comes out nice and pink. However after washing in tap water, it turns golden brown with black stains.

Could this be caused by chlorinated tap water ?

Thread: Electric Motor RPM?
12/05/2012 17:02:06

do we assume that you have a supply of 60hz as in the UK and Europe we have 50Hz - that could make a difference! Oh and at 230/240 volts.

Thread: Uses for old brake discs.
01/05/2012 18:32:12

Could you profile them and then use them as formers for boiler backheads etc ?

Thread: Aircraft General Discussion
30/04/2012 18:56:05

We used the Redux process at BAC (Vickers) Weybridge on VC10 and BAC 1-11 (Vickers commercial type 10 and BAC 1st - 11th Vickers Commercial !!)

In 1965, we were making fuselage panels easily 8 x 4 foot in size with up to 5 layers thick around cargo door frames etc. The panels were profile stretched and then routed to shape. Each layer was laid on a former, coated with the Araldite type mix and then the next layer added until the complete panel was sandwiched together. A heavy rubber sheet was laid over the complete panel, vaccum applied to squeeze it all together and then rolled into a huge tubilar autoclave with giant oven doors at each end and 'steam' baked for a few hours. So glue thickness was pretty thin but homogenius.

I remember that the 'glue' was two part as we would beg a cup of the stuff (2 cups) to hold our old Ford 8 and Austin 7 cars together and it would not be the first time we arrived home with a duffle bag with a new epoxy coating to the inside !! I can still remember the buiscuity smell of the Redux shop - lovely.

Thread: How Accurate Are Low Cost Digital Calliper Micrometers?
25/04/2012 20:49:19

Whilst knocking the use of fractions, why don't we jibe at number and letter drills ? For us IMPERIAL lot, did any one see drill and reamer sizes in decimal increments - Oh yes please, can I have a 0.35" dia drill. Fractions, letters and numbers are the bread and butter of many of our old drawings as too are milimeters for newer drawings - so don't knock it when us traditional enginers use a bit of modern metrology to connect with the past.

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