Member postings for Michael Gilligan

An excellent idea Ian ...

A while ago, there was a suggestion [see this thread] that people engage in some sort of "Open Source" design project. This might be the ideal project.

MichaelG.

Edited By Michael Gilligan on 29/08/2012 09:16:33

A note about NEMA:

Most drawings show the mounting holes on a square pattern, dimensioned as rectangular coordinates.

Regardless of the units chosen, these will always look inconvenient [unless grossly approximated].

The reason is very simple .... NEMA originally specified the mounting centers [*] in fractional inches, equispaced on a pitch circle.

MichaelG.

[*] NEMA is an American association, so we should grant them the spelling.

Edited By Michael Gilligan on 29/08/2012 08:13:25

Nice one!

David Clark did explain this, back in 2009 ... see this thread.

Wow ... the Search Box on the home-page works quite well.

MichaelG.

Alan,

Thanks for the kind comment.

I will try to post something regarding motors and controllers, this evening.

If the concept looks good to you, then EW Owners will need to design a suitable motor bracket ... I regret that I am not a member of that elite club.

MichaelG.

Edited By Michael Gilligan on 28/08/2012 12:53:56

Just a couple of thoughts ...

Looking at the Exactus article; the Ratchet [which is, quite reasonably, worrying folks], is a modified 55 tooth changewheel driven by a long rod from an Eccentric.

1. I suspect that this will run more quietly than you fear ... whilst I have done no analysis of the mechanism; it does look much more "progressive" than simple Pawl.

2. There are plenty of small Stepper Motors available [typically salvaged from Printers] with 48 steps per rev. and it would seem a very simple matter to replace the Ratchet with one of these.

MichaelG.

The world's premier "Physical Laboratory" tries some public outreach, and even asks for constructive input ... and this is the response.

How very sad.

MichaelG.

On a miserable Bank Holiday weekend; you could do much worse than look at these, on the N.P.L. website.

They are even asking for comments on two that are currently v0

MichaelG.

David,

Absolutely agree!

MichaelG.

Just testing ... is a direct link to that EU document ... inserted using the infamous BubbleCar

Edited By Michael Gilligan on 25/08/2012 13:48:22

YES David ... it's a SERIOUS problem ... it just screwed up my text:

That originally said: 

"Just testing ... here is a direct link to that EU document ... inserted using the infamous BubbleCar"

... with only the word "here" hyperlinked

Edited By Michael Gilligan on 25/08/2012 13:50:28

Edited By Michael Gilligan on 25/08/2012 13:54:28

P.S. ... The big problem with the link that David L was trying to insert is that the EU [of all people!] has failed to comply with standards for the URL.

Their URL ends with "colon pdf" instead of "dot pdf"

[cheap puns about colons studiously avoided]

MichaelG.

David L,

:-] :->

Edited By Michael Gilligan on 25/08/2012 09:02:55

Edited By Michael Gilligan on 25/08/2012 09:04:16

Alan,

Several "alternatives" have been offered, but no-one has yet thanked you for your original suggestion.

Well done, Sir ... it's simple and effective; and that is true Engineering.

MichaelG.

KWIL,

Chapter and verse ... [quoted from this site]

Use in regulation (EC) 1907/2006 chapter 2 article 3 under item 24 (page 58 in link stated below) is defined as follows:
"Use: means any processing, formulation, consumption, storage, keeping, treatment, filling into containers, transfer from one container to another, mixing, production of an article or any other utilisation."

... Make of that what you will.

The regulation is hyperlinked from the page.

MichaelG.

This is a good place to start digging into the legislation.

And here is the [old] HSE guidance.

MichaelG.

Edited By Michael Gilligan on 24/08/2012 21:04:13

Nothing is obvious on this forum.

Others have asked that question seriously.

... Sorry I missed the joke.

MichaelG.

Agreed 100%, Sid ... they need to clean up the evident defects in the code before [but not intead of] doing any test postings.

The sequence is pretty well established:

1. Development

2. Browser Compatibility Testing

3. Stress Testing and Penetration Testing

4. User Acceptance Testing

... repeat as required.

"In the Real World": The effort put into each stage tends to vary, according to:

(a) the Budget available, and

(b) the perceived Impact of failure.

MichaelG.

The one that can [in some browsers] be enabled via the drop-down menu under the icon with "ABC" and a "Tick" ... just above Norman's "BubbleCar".

"Check" is, of course, the American for "Tick" ... which just about explains the logic behind that icon.

MichaelG.

It's obviously one of those four-wheel Isettas, Norman.

... but which way is it pointing ?

​MichaelG.

Jason,

I made a similar suggestion in another thread, on 17-July, to no avail.

Quote: I think the variation is down to poor "browser compatibility" in the html ... which is something your web-developers need to check.

There are many of us that are interested in this problem, so; why not let the developers make a few test postings ... we could then report on performance in different browsers.

MichaelG.

iPad / iOS, Safari

MacBookPro / SnowLeopard, Safari

Edited By Michael Gilligan on 22/08/2012 21:34:58