Member postings for Russell Eberhardt

+1 for reeves. I bought the casting set for the beam engine "Mary" many years ago and found the castings to be good quality.

Russell

Some time ago I found a Solidworks 3D model of the Antikythera and managed to translate it so that anyone who uses Onshape (free) can access it here:

Antikythera model

Hope that works.

Russell

"Hey Google, turn the tumble drier on at 2am" or whenever your cheap rate starts?

Russell

I have found that dishwasher rinse aid is preferable to washing up liquid as it is a non foaming detergent. However my main machine is almost permanently fille with clock cleaning liquid to this recipe:

Clock cleaning solution

Brass parts in particular come out bright and shiny.

Russell

Lanchester Motor Cars, Anthony Bird and Francis Hutton-Stott

Yes, so much for "free trade" after Brexit. We have similar problems buying from UK suppliers for delivery here in France. Carriers are demanding exhorbitant fees for customs and VAT before they will deliver goods that I order.

Russell

I bought my first lathe in the 1970s for £50; It was an Edgar 5in model from the 1920s. It came with a motor to replace the treadle and I used it for a few years for the restoration of a vintage car making things like shackle pins and skimming brake drums. Later I replaced it with a UK made clone of the Atlas 10F from about 1950. I initially used it for vintage car work and later for model making, clock making, and (for brownie points) for household repairs. It is like a slightly bigger brother to the Myford being of similar design.

For a while I had a far eastern 9x20 lathe as well but needed the room for a milling machine so one of the lathes had to go and I chose to keep the Atlas which is still in use.

If I was going to replace it I would go for a new Chinese lathe.

Russell

Another good French online supplier:

**LINK**

https://www.blockenstock.fr/

Hope that helps

Russell (in France)

Edited By Russell Eberhardt on 06/02/2021 14:48:57

There are some circumstances ahere a washer should NOT be used. For example, if both the bolt and the surface it's fitted to are hardened an normal soft washer will reduce the reliability.

Russell

They are all bigger than my first hard drive!

Russell

I'm a great fan of D-bits as reamers but one thing to note is that for an accurate size reamed hole the D is not half the diameter but about 5 or 10 thou of material should be left to prevent further cutting on the edge.

Russell

Hi Rob,t

I had exactly the same experience back in the 1950s. My dad gave me an ED Racer engine for my birthday. I built a balsa control line model for it and first (and last) time out it was so fast I destroyed it in half a lap!

Russell

This is just so much unnecessary bureaucracy. Any manufacturer worth his salt will want his products capable of being sold in as many markets as possible so will use both marks. Nearly all BSI standards are based on EU standards anyway so why not keep them the same?

Russell

Difficult to tell if it meets the standards just by looking. It requires double insulation or reinforced insulation with defined creepage and clearance distances and should withstand a 4 kV flash test. something like a metal shrouded lamp holder would need to be dissected to measure the distances.

Russell

Yes, clock cleaning fluid which is a mixture of water, ammonia, oleic acid (olive oil will do), and a touch of acetone. Best used in an ultrasonic bath to get into small holes such as pivot holes in clock plates but should work on brass jets.

Russell

If, as Michael suggests, it is copper oxide you could try using household ammonia solution to clean it.

Russell

You could try "repetier-host" which comes with the Slic3r slicer. That's what I started with and I found the combination quite easy to use.

Russell

Hmm ...

5 minute charging time for a Tesla S 60 battery will require 720 kW from the supply, not allowing for charging inefficiency. So, if a standard 240 V supply is used, it will need to supply over 3000 A. So how thick will the cables be? A motorway service station might need 10 charging points so it will need a 7 MW supply at peak times!

Russell

They often do!

Russell

Good solution Chris. I've done the same in the past - just have to be careful that everything is aligned correctly otherwise things can move as you tighten the screw.

Russell