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Member postings for Michael Gilligan

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

Thread: JoNo's Pendulum
30/08/2023 07:17:29

That looks like ‘text book’ stuff, Jo

… you will likely be a cited reference for future investigators

MichaelG.

Thread: PayPal
30/08/2023 07:07:06

Just a’heads up’

PayPal is in the process of transferring its U.K. business out of the E.U. and into PayPal U.K. Ltd.

eMail received early this morning.

MichaelG.

Thread: cheap lathe
29/08/2023 18:03:13

Call me paranoid … but a URL that ends in /hijk sounds like someone is playing silly-beggars

MichaelG.

Thread: Lathe in a Box
29/08/2023 17:43:40

I would probably look at skateboard wheels … some of them are modestly priced, and it would be easier to machine a new core than to machine rubber.

MichaelG.

.

No connection with these people [they probably wouldn’t have me] … but here is an indicative range:

https://www.skatehut.co.uk/skateboards/skateboard-wheels?productListFilters=&productListPgNo=1

Edited By Michael Gilligan on 29/08/2023 17:47:37

Thread: Proxxon CNC Mill
29/08/2023 09:41:29

Thanks, Huub yes

Yes, I realised the board was made in China … it’s just that this forum encourages us to buy locally if we can.

MichaelG.

29/08/2023 08:45:43

I just did an ebay search for mks tinybee … showing ‘nearest first’

Every listing supplies from China

Does anyone have a recommended supplier ?

MichaelG.

29/08/2023 07:32:26
28/08/2023 23:30:42
Posted by Huub on 28/08/2023 23:22:17:

.

[…] and FluidNC (MKS TinyBee ESP32board) on my mill. It works flawlessly. […]

.

That looks very interesting yes

.

.
Thanks
MichaelG.
Thread: Isochronous knife edge suspension?
28/08/2023 16:15:31

4-46.jpeg

.

Ian Bruce’s translation ^^^ is well-worth reading

If you can’t find it on t’internet … send me a PM with your eMail address and I will send you the PDFs

MichaelG.

28/08/2023 15:50:31
Posted by david bennett 8 on 28/08/2023 10:43:02:
Posted by Michael Gilligan on 26/08/2023 22:12:53:

A nice friendly Moderator might rotate that picture for you, Dave

Meanwhile … I think the first problem is that the radius of your cylinder is too small

For the geometry to work, that radius would be the same as the length of the pendulum sad

 

MichaelG.

Michael, are you sure? I cannot reconcile this. Surely a roller of any size on a flat plane must produce a cycloid. The bob must follow this shape.

dave8

.

To be honest, Dave … no I’m not sure:

… It was a knee-jerk reaction, and I would be perfectly happy to be proved wrong.

… I was just thinking back to Huygens’ original, which is lodged firmly in my mind.

Please experiment, and please advise !!

MichaelG.

.

This is not it … but is a delightful image:

https://commons.wikimedia.org/wiki/File:Cycloidal_pendulum_demonstration.png

Edited By Michael Gilligan on 28/08/2023 15:55:56

Thread: Sewing machine motor
28/08/2023 08:15:55

I have only been a passive observer so far, Duncan … but I think this is representative of what is being used:

**LINK**

https://www.ebay.co.uk/itm/126001208667

MichaelG.

Thread: Unusual Thread Type?
28/08/2023 07:53:39

As a ‘reference’ for your interesting tale … may I suggest this: **LINK**

https://tttg.org.au/Content/Docs/Articles/Stanley-Planes-and-Screw-Threads-Part-2.pdf

MichaelG.

Thread: Improving hobby-grade Servos
27/08/2023 21:55:07

Here’s a treat for you, Ady

It’s a few years old, and in a somewhat higher price bracket … but anyway:

.

.

MichaelG.

.

P.S. __ I doubt if the narrator really meant “nano millimetres “

Edited By Michael Gilligan on 27/08/2023 22:00:13

27/08/2023 19:22:19

I guess that’s why we were not quite on the same page this morning, Ady

I hadn’t taken any real interest in the programming of the robot arm … just in the upgrade of the actual servo.

MichaelG.

.

https://bitbucket.org/adamb3_14/servoproject/src/master/README.md

Edited By Michael Gilligan on 27/08/2023 19:31:22

Thread: How come Windows XP can use Bing …
27/08/2023 18:25:36

Thanks for the thought, Peter

There are several browsers that are [currently] still useable with XP but, to be honest, you hit the nail on the head with “if you want to” … and to be honest, I don’t

The main reason I wanted to use the Vaio was to run the programming software for PicAxe chips

… it has a good screen resolution AND a handy RS232 connector.

It only took a few minutes to copy the file from the little NetBook, and I’m sorted now

Spent some time Yesterday with Revo Uninstaller, getting rid of the waifs and strays on the Vaio.

Microsoft has ceased supporting XP so the machine ‘is what it is’

MichaelG.

.

Ref. **LINK**

https://picaxe.com/software/picaxe/picaxe-editor-6/

Ref. **LINK**

https://www.revouninstaller.com/revo-uninstaller-free-download/

Thread: Indexing jig
27/08/2023 13:15:22

36 sounds good to me … but 24 is probably adequate

Unless to are particularly fond of 5, 7, etc.

MichaelG.

Thread: Improving hobby-grade Servos
27/08/2023 12:47:55

I must be very dim, today:

My pico thread was about the fact that a dirt-cheap and very useful-looking board can be programmed using the Arduino IDE

This one is about a clever lad who upgraded a servo

MichaelG.

27/08/2023 11:15:17
Posted by Ady1 on 27/08/2023 09:19:42:

As with the previous thread on the pico […]

.

Sorry, Ady … I don’t see the similarity

Could you please elucidate

MichaelG.

27/08/2023 08:27:05

Skipping forward … we get this:

.

.

MichaelG.

Edited By Michael Gilligan on 27/08/2023 08:27:59

27/08/2023 08:17:58

I happened across this last evening: **LINK**

https://hackaday.com/2021/03/19/robot-arm-achieves-amazing-accuracy-with-just-servos/

and, having very little experience with servos … I was impressed !!

.

Grateful for any observations from the cognoscenti

.

MichaelG.

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