Member postings for Neil Wyatt

Unfortunately, the 'gap' relates to the switch over between two different approaches to generating the original electronic issues.

If any readers can help us with PDF versions of these issues, it would be appreciated.

Neil

So true! 🤣

Carry on, Mr G.

Neil

In brief, London swapped small piles of horse manure for a more evenly spread layer of soot.

My car hates a prolonged sequence of low speed journeys, allowing it to rev high in first when pulling away every so often helps it keep its throat clear. Best not done with someone on your tail though.

Neil

We may be going round in circles trying to solve a problem whose solution is likely to be irrelevant in a month or so!

Neil

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A very generous offer.

The link for the last post above includes the thread, page and post numbers:

https://www.model-engineer.co.uk/forums/postings.asp?th=186161&p=3#2836728

I have no idea how you extract the number for posts other than the last in the thread...

Neil

Ah... I'm sure there is or used to be SOME way of getting a link to a post though. Hmm.

Neil

Here's an idea for a small but challenging project

www.pocket-sundial.com/pages/how-it-works-sundial

Explains the mechanical side, but not the engraving or other challenges!

Neil

A good idea.

Curiously you can already do this with the 'send to a friend' function but it does it be email!

Neil

I use Backblaze for a cloud backup.

Neil

Bumping this to make sure people notice it!

Neil

Alibre Atom again.

We did an offer/series in MEW and I use it all the time.

I use Blender sometimes to edit STLs ... and it's a living nightmare!

Neil

😁

DOH!

It's never occurred to me, I can make a silicone mould, use it to cast a wax pattern, then do a proper investment casting. That's how the pros do it!

I can get 20g of sterling silver casting grains from cookson gold for £16!

This won't be for the review, but might happen in the future.

Neil

I was looking at a 'ceramic resin' that costs £75 for 500ml.

The explanation was poor but the crisp prints of a set of rings looked excellent.These are meant to be pressed (at great pressure) between two sheets of synthetic rubber which are cured and then used to cast metal rings. Would obviously be limited to (lead-free) pewter type metals. I've done some basic 'jewellery' using two-part silicone mould material and PLA.

My partner uses a 'nail hardening arch' to set resins for some of her craft projects.

N.

That sounds embarrassingly straightforward, although I don't know how crisply the soluble resin prints.

I agree with Robert, except if the repetition rate is much faster then you don't want to risk pumping too much energy through the LED. As a rough guide the resistor should be chosen to limit the average current through the LED to its normal operating current or rather less.

The LED will get a rough ride, but the idea is that the heat generated in the LED by the narrow pulses will dissipate between the pulses enough to avoid overheating, but the pulse energy integrated over time should not exceed the normal operation or it will overheat.

Neil

A reminder, anyone interested in being a Beta Tester, email me [email protected].

Thanks,

Neil