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Member postings for Phil Grant

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

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Thread: Interface PCB for the ELS project
01/11/2019 21:55:58

I can't believe it but all of the next batch have been pre-ordered already !!!!!!

If there are still more people after a PCB let me know and I will order yet another batch if I get enough people interested.

Cheers,

Phil

31/10/2019 20:21:07

Hi,

Just a word of warning when assembling the PCB components, don't solder in the screw terminal blocks before soldering the SMD power jack in place otherwise you can't access the powerjack solder pads.

I was just told about this by someone assembling their PCB.

pcb dc powerjack.jpg

30/10/2019 19:09:55

Just a quick update, I ordered another batch of PCBs this afternoon.

PM me if you are interested.

Has anyone who's already got one assembled it yet?

Phil

28/10/2019 20:43:30
Posted by Gray on 28/10/2019 17:42:14:

Hi Phil, I'm sure I posted this at the weekend but it seems to have disappeared.

Many thanks, received the board on Friday, it looks to be excellent quality. Your documentation downloaded fine.

You may have mentioned this in the other thread but I couldn't find it, Where did you get the boards from?

Kind regards

Gray

Gray,

I got the PCBs from seeedstudio/fusion

Phil

28/10/2019 13:58:17

Just to let you know, all the PCBs have all gone now, if there is enough interest I can order another batch.

PhilG

26/10/2019 09:27:19
Posted by Michael Gilligan on 25/10/2019 23:56:27:

It’s really no problem, Phil ... just weird

Everything looks fine whilst I’m viewing your file ‘live’ ...

MichaelG.

.

Edit: I’ve just downloaded it as PDF, and the images are O.K. in that.

It’s only my saved version of your Word document that displays wrong.

Edited By Michael Gilligan on 26/10/2019 00:05:55

Edit: Sussed the problem ... it’s the fonts wot dunnit !!

Edited By Michael Gilligan on 26/10/2019 00:10:26

Good to find out why "things happen" smiley

25/10/2019 23:10:32
Posted by Michael Gilligan on 25/10/2019 22:45:48:

The link works fine, Phil yes

The only slight oddity is that the images are compressed width-wise when I open my saved version on the iPad.

... utterly trivial in the grand scheme of things.

MichaelG.

Hmmm! IPADs.... Apple ... I can send a PDF if you want I just thought that using the link the latest copy would always be available.

25/10/2019 23:08:13
Posted by dcosta on 25/10/2019 22:56:53:

Hi Phill,
I am portuguese and I live in Portugal.
If you still have an available PCB I would like to have it.
If there is such a possibility I do not know how I can pay you for the board and all expenses. Will it be possible through PayPal?

Best Regards
Dias Costa

Dias,

Paypal is fine, I just need to find out how much the postage will be to Portugal.

Send PM with you address etc.

Edited By Phil Grant on 25/10/2019 23:11:05

25/10/2019 21:55:48

OK,

Some of you have now received the PCBs so I have tried to put together a quick guide on how to assemble it, the guide is shared from my Onedrive account so I'm not sure if it will work, if not let me know.

ELS PCB Assembly guide

22/10/2019 19:32:52
Posted by Zan on 22/10/2019 19:24:27:

Yes please! Count me in!

Where exactly does this interface sit in the project? Is it in place of the breadboard cough uses?

Yes, If you look at his youtube videos (Clough42 video playlist)  he designed an interface PCB that converts all the signals bidirectionally from 5V to 3.3V so the Ti Launchpad can talk to the Stepper Driver and the display he uses.

All I've done is re-create the interface PCB using through hole components instead of SMD.

He will be selling his boards pre assembled and tested, I didn't fancy SMD assembly and reflow soldering and I'm too impatient to wait smiley so I did my own design using through hole components, not as nice looking as his but it will be in a box!

Phil

Edited By Phil Grant on 22/10/2019 19:35:03

22/10/2019 19:17:24
Posted by Michael Gilligan on 21/10/2019 08:26:34:

Thanks yes

MichaelG.

.

Edit: Will you be selling some boards ?

Edited By Michael Gilligan on 21/10/2019 08:37:47

Michael,

I wasn't planning to sell them but if anyone's interested then I will send them one, I'm only looking to cover outlay for the board postage and Paypal fees, does £3 for a bare PCB sound OK?

I will put some instructions together and a BoM.

Phil

Thread: Stepper power for autofeed on lathe
22/10/2019 19:07:40
Posted by SillyOldDuffer on 21/10/2019 12:59:30:

Bit of research into how Dropbox manages images has revealed all. Although Dropbox shared links look just like ordinary web image source URLs, they aren't! They actually activate a management layer inside Dropbox that presents the image, as I suggested earlier, as one of many. In consequence Dropbox links can't be embedded successfully in a webpage because Browsers expect a single raw image. To keep the Browser happy it's necessary to bypass Dropbox's management layer.

One solution suggests it can be done changing the query string from, for example,

https://www.dropbox.com/s/i0ug22ojhy4ajt7/2019-10-19%2020.32.37.jpg?dl=1

to

https://www.dropbox.com/s/i0ug22ojhy4ajt7/2019-10-19%2020.32.37.jpg?raw=1

Didn't work for me, perhaps because the method is historic. Instead it seems Dropbox now provide direct access to embeddable images by requesting them from a different server. Rather than:

https://www.dropbox.com/s/i0ug22ojhy4ajt7/2019-10-19%2020.32.37.jpg?dl=1

try

https://dl.dropboxusercontent.com/s/i0ug22ojhy4ajt7/2019-10-19%2020.32.37.jpg?dl=1

Fingers crossed, that does work. Not sure it's a good way of managing images though. I prefer the forums own Album system for the reasons given by Frances. Although a shade clunky and basic the album avoids many technical issues and is future proof in that it should last at least as long the Forum.

Dave

Thanks for that Dave, you learn something every day smiley

21/10/2019 08:15:33

Created a new thread with pictures using the Forum Album method, hope you can now see the images.

Thread: Interface PCB for the ELS project
21/10/2019 08:13:40

Here are a couple of pictures of my version of the Electronic LeadScrew project interface by Clough42.

It is a through hole solution with only the DC power jack being SMD.

I have used the Album feature of the forum due to some people not being able to see the pictures using a dropbox link.

2019-10-19 20.32.20.jpg

2019-10-19 20.32.43.jpg

Thread: Stepper power for autofeed on lathe
20/10/2019 19:55:46

Posted by Brian Oldford on 20/10/2019 19:52:21:Posted by Phil Grant on 20/10/2019 09:58:34:

Another go for the images.

All the images are good for me now. PCB looks good. What is the power rating of the resistors you have used?

1/8W to get them small enough.

20/10/2019 19:52:32
Posted by Frances IoM on 20/10/2019 12:31:33:
It would be much easier both now and especially for the future to use the admittedly clunky album feature of this site - Dropbox is a tracker (hence the 'free' nature - viewers pay via privacy) + also such 'free' sites tend to drop images after a time thus often wrecking the thread (see the mess made when one such site went commercial)
I will have a look at using the album feature.
Although it's the first time I've had issues with Dropbox links on forums

20/10/2019 09:59:21

Do all the previous images show as I used the same dropbox link for them all!

20/10/2019 09:58:34

Another go for the images.

20/10/2019 09:21:07

Does it show now? I forgot to change the dropbox link to display the image, sorry

20/10/2019 08:35:03

The final PCBs arrived yesterday for the Electronic leadscrew project from Clough42..

t powered up and worked fine, There are spaces for the eeprom and two power LEDs, 5V and 3.3V but I haven't populated them as it will be inside a box and not visible. I also changed the power socket to a surface mount one because it sits overs some header pins on the host board.

 

Edited By Phil Grant on 20/10/2019 08:36:14

Edited By Phil Grant on 20/10/2019 09:20:01

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