Member postings for Stuart Smith 5

I had the same problem. I used a tungsten carbide drill bit from this range: - **LINK**

I tried a masonry drill and it did sort of work but not as well as the tungsten carbide bit.

Stuart

Macc Models seem to have good prices for small section brass. 1/4 inch brass hex is 90p for 12 inch length, but postage is extra so for a one off piece would probably be more than you paid.

No assocition with the company, but I have bought from them. Quick delivery too.

Ron

Does the potentiometer have a switch? If it has 5 wires it could have 3 for the potentiometer and 2 for a switch.

Another Stuart

A similar question was asked on this thread:

https://www.model-engineer.co.uk/forums/postings.asp?th=138585

some of the comments were incorrect, but you may want to have a read. Some comments were from forum members who have had three phase installed.

You can get a quote for 3 phase by contacting your electricity distribution network operator (DNO). The cost will depend on the location of the nearest suitable 3 phase main cable and the supply capacity you want . If you don't know who your DNO is, you can find out at this website:

**LINK**

Regarding your own internal wiring, a commercial/industrial electrician will be able to quote for the necessary work.

Stuart

Edited By Stuart Smith 5 on 30/05/2019 11:50:23

Would these be suitable?

Accu

This a drawing of a brick cubicle used for temporary electricity supplies.

Brick cubicle drawing

I suppose it depends how much you want to spend.

Here are links to 2 suppliers of steel cabinets:

Ritherdon

Glasdon

Or you could make a brick cubicle with a concrete flag as a roof.

You might find something suitable here:

**LINK**

they are usually cheaper than rs.

Chris

It may be that your leds can be dimmed if you have dimmable leds and the correct type of dimmer. This is one I bought recently:

Dimmer

specifically advertised for leds.

It sounds like Mini Din connectors would be a good choice if they are small enough for your application. Available from 3 pins upwards and with chassis or pcb mounting sockets. I buy connectors from CPC. They are local to me but do quick free delivery. **LINK**

The etched brass in my previous post is 28mm diameter.

I etched this after using pressnpeel sheet with the design printed using a laser printer.

I heated the brass in the oven and then pressed it onto the sheet.

I used Sodium persulphate from CPC as the etchant. It is clear so is easier to see what's happening than ferric chloride. It works best at 50 deg c.

You could try Pressnpeel. It is a blue sheet that you print onto using a laser printer or photocopier. You then iron onto your brass sheet and when peeled back it leaves the black resist for etching.

I have used it for producing PCBs but recently made a couple of etched patterns onto brass for wood brands. I didn't manage to etch very deep, but deep enough I would think for a loco nameplate. I intend to use this technique to produce nameplates for my 16mm scale loco.

Ron

The Evolution Rage saw has a TCT toothed multipurpose blade not an abrasive one. I have a Fury saw which also has a TCT toothed blade. I have used it mainly for wood but have cut 1" square section steel with it. I have had it for about 4 years and it still cuts ok with the original blade, although I have cut steel a few times. I bought it after a demo in my local B&Q where they cut steel and aluminium.

Stuart

This might be suitable:

https://hobbycomponents.com/sensors/684-w1209-temperature-control-switch

As Martin says, it is most likely that the line all the way from the pole transformer was originally bare wires but that work on the high voltage line (or at least the transformer pole) has been carried out later. Possibly refurbishment / replacement which would include replacing the low voltage wires with insulated Aerial Bunched Conductor (ABC) at that pole. The rest of the low voltage line could have been replaced at the same time, but cost or company policy or technical constraints may have meant that the minimum was done.

Stuart

Churchill's Ministry of Ungentlemanly Warfare ?

Ron, as Neil says, the upload speed will be a lot lower than the download speed with normal adsl broadband.

I have just checked mine and it shows 8.6 Mbps download but only 0.7 Mbps upload. If I use my EE mobile phone on 4g as a modem, I get 54 Mbps download and 12 Mbps upload.

Stuart

Just a comment about your mains supply voltage and the capacitor rating.

The mains voltage can be up to 253 volts in the U.K. and as you are near your local substation, it is to be expected that your supply voltage will regularly be around 245 to 250 volts, and up to 253 volts at periods of light load on the system generally.

As long as the capacitor is rated at 250v AC then this will be ok and is what you would expect the rating for a UK machine.

I have recently had a similar problem with the leadscrew gear on my Amadeal cj18 lathe. I have been thinking of fitting a motor to the right hand end of the leadscrew and was trying out options and forgot to tighten the retaining screw on the end. When I started the lathe the collar tightened up and seized the leadscrew. There was a bang and the plastic leadscrew gear shattered.

Luckily easily fixed. I ordered a replacement from Amadeal (£7 inc postage) and it came in the post the next day.