Search Results for 'roy vaughn'

[Roy Vaughn]

On Roy Vaughn said

… How a free-to-use web site fits Morton’s business model I don’t know, but an off-putting web site can’t be of benefit

So far as I can tell, Roy … the forum is primarily a ‘channel’ for Mortons to display

1. self promotion, and
2. paid-for advertising

Hence my cynical response to Ady1

 

You are right, of course, it will only ‘fit’ if continues to attract visitors

MichaelG.

[Michael Gilligan]

On Michael Gilligan said

On Roy Vaughn said

MichaelG and Nick

Yes, I’ve done search by name with success.  However, with this post I had moved on to more general search.  Maybe familiarity will help, or an “advanced” search facility will be implemented to make life easier?  I’m old and prefer to avoid change, especially when new is worse.  Thanks to mods for all the work you have put in to get it this far though.

Roy

.

I shall be astonished, Roy, if anyone sees fit to implement an “advanced” search facility hereabouts.

Shortly before we lost the old forum, I commended a modestly priced ‘engine’ which demonstrably works on many other sites … but I was pretty-much ridiculed for so doing.

MichaelG.

Michael

That’s very disappointing, I would expect modern forum software to have such a facility as standard, just waiting to be activated.  Given the state of the rest of the system, this could have been a relatively workable fallback.

For me, the new posts display is the key facility, as it seems to be for many others, you never know where an interesting topic might turn up.  The old ME forum used to be my favourite, the new posts being my way in, as with HMEM.  The Barton site uses active thread flags instead which works well for me but of course there’s less traffic there.   How a free-to-use web site fits Morton’s business model I don’t know, but an off-putting web site can’t be of benefit.

Roy

[Roy Vaughn]

On Roy Vaughn said

MichaelG and Nick

Yes, I’ve done search by name with success.  However, with this post I had moved on to more general search.  Maybe familiarity will help, or an “advanced” search facility will be implemented to make life easier?  I’m old and prefer to avoid change, especially when new is worse.  Thanks to mods for all the work you have put in to get it this far though.

Roy

.

I shall be astonished, Roy, if anyone sees fit to implement an “advanced” search facility hereabouts.

Shortly before we lost the old forum, I commended a modestly priced ‘engine’ which demonstrably works on many other sites … but I was pretty-much ridiculed for so doing.

MichaelG.

[Michael Gilligan]

On Michael Gilligan said

At the risk of stating the obvious, Roy

You could try a search for roy vaughn

https://www.model-engineer.co.uk/forums/search/roy+vaughn/

… a quick scroll down those results includes posts by you about els

MichaelG.

MichaelG and Nick

Yes, I’ve done search by name with success.  However, with this post I had moved on to more general search.  Maybe familiarity will help, or an “advanced” search facility will be implemented to make life easier?  I’m old and prefer to avoid change, especially when new is worse.  Thanks to mods for all the work you have put in to get it this far though.

Roy

[Nicholas FarrParticipant @nicholasfarr14254]

Hi Roy Vaughn, I did say you need to have a good memory, but if you posted photos and have a record of when the photo was taken or uploaded, it is a good clue as to which page to look in around that date. However, I put in the search box “electronic leadscrew” which took me to https://www.model-engineer.co.uk/forums/topic/latest-me-els-article/page/2/#post-659987 and then to your post https://www.model-engineer.co.uk/forums/topic/latest-me-els-article/#post-659855

Regards Nick.

[Michael GilliganParticipant @michaelgilligan61133]

At the risk of stating the obvious, Roy

You could try a search for roy vaughn

https://www.model-engineer.co.uk/forums/search/roy+vaughn/

… a quick scroll down those results includes posts by you about els

MichaelG.

[Roy Vaughn]

On Roy Vaughn said

On JasonB said

On Roy Vaughn said

Have the images which I uploaded on the old site been deleted, I can’t find them?

Also, how do I access my posts?

 

See this reply about albums

Click “profile” on the green bar and the default page that comes up is your activity (posts)

Just one post there, does this mean that nothing from the old site has been copied over?  Surely we have not lost all that invaluable material accumulated over the years (I don’t mean mine)?

P.S. The notification via email does not appear to work yet for me.

Hi Roy,

looks like the new site Profile is only showing posts since go-live, which I think is a bug.

According to the Moderator Dashboard, you have made no posts at all.  I think that’s also a bug!

However, if I use the Moderator Dashboard to look for Topics started by your good self, it finds three, which could be right.

I think the posts have transferred OK, but are difficult to find.   If you can remember which topic they’re in, your posts should be accessible through that route, though it’s pretty cumbersome.   Searching for ‘Vaughn’ is easier, but I’m not sure it finds everything.  I had over 10000 posts on the old forum and searching for SillyOldDuffer comes back with 5399 hits.  Hmmm.

Gold star for finding at least two, maybe three, serious bugs in one go!  I’ll report them – a new reporting system was set up earlier today and I have get in and to learn how to use it!

Investigating your email problem – watch for a Message

Dave

 

 

 

 

 

[JasonB]

On JasonB said

On Roy Vaughn said

Have the images which I uploaded on the old site been deleted, I can’t find them?

Also, how do I access my posts?

 

See this reply about albums

Click “profile” on the green bar and the default page that comes up is your activity (posts)

Just one post there, does this mean that nothing from the old site has been copied over?  Surely we have not lost all that invaluable material accumulated over the years (I don’t mean mine)?

P.S. The notification via email does not appear to work yet for me.

[JasonB]

On JasonB said

On Roy Vaughn said

Have the images which I uploaded on the old site been deleted, I can’t find them?

Also, how do I access my posts?

 

See this reply about albums

Click “profile” on the green bar and the default page that comes up is your activity (posts)

While I have played around with my Google Chrome, and Microsoft Edge to try and tone down the screen with little success. I must report I am not seeing any “green bars”, only a very pale grey.

Regards

Gray,

[Journeyman]

On Journeyman said

Made a post to test the editor. It has problems viz. the mark up code is getting into the post rather than the intended formatting. ie. trying to centre text ended up with – <p text align=center> rather than just centred text </p>

Test post in the “Test Post Thread” – where else would it be!

John

On Roy Vaughn said

Have the images which I uploaded on the old site been deleted, I can’t find them?

Also, how do I access my posts?

 

I guess you missed the pre-launch discussion about this Roy.  The new site does not need Albums.  Instead images are loaded directly into posts and stored with them.   No need to upload to an Album first.   A way of downloading images from Albums was provided by a member, but I don’t think it was used much.   I didn’t bother because I already have local copies which are higher resolution than those stored in the Album.

The new site has a Gallery facility, but this is intended for images and documents that aren’t in a post.  (Perhaps to support a Classified Advert.)  I doubt Galleries will be popular.

To access your posts, login, and click Profile in the Green Banner.  They should all be listed under the header blurb.

Dave

[Roy Vaughn]

On Roy Vaughn said

Have the images which I uploaded on the old site been deleted, I can’t find them?

Also, how do I access my posts?

 

See this reply about albums

Click “profile” on the green bar and the default page that comes up is your activity (posts)

[Stephen Ward 1Participant @stephenward1]

If anyone has any questions about the "Thread to shoulder mod" (or divider) feel free to ask/message.

Steve

​​​​​​​Posted by John Hinkley on 11/09/2023 15:51:58:

Simon,

I was interested in this addition, but Duncan's link didn't work for me. However, it gave a starting point for a bit of Googly detective work. There's World of Ward for starters and from Roy Vaughn's pointer you get to Thread to shoulder mod in James Clough's "issues" tab on github. The discussion progresses to stopping and starting threading. It sounds more complicated than it is, probably. Easier if you have the code installed and the display in front of you, I guess.

John

[John HinkleyParticipant @johnhinkley26699]

Simon,

I was interested in this addition, but Duncan's link didn't work for me. However, it gave a starting point for a bit of Googly detective work. There's World of Ward for starters and from Roy Vaughn's pointer you get to Thread to shoulder mod in James Clough's "issues" tab on github. The discussion progresses to stopping and starting threading. It sounds more complicated than it is, probably. Easier if you have the code installed and the display in front of you, I guess.

John

[Igor PParticipant @igorp45053]

Posted by Roy Vaughn on 23/03/2022 15:37:37:

I second what MikeK has said. I've just been through this with my X2. I machined the gib screws to a point which improved things a lot.

Will give it a try. Some prefer pointed gib screws, some say flat, I checked mine and they are flat. What about rigidity? Increasing it would be my goal. Also reduced friction, but that I already got due material combination.

[Henry BrownParticipant @henrybrown95529]

Posted by Roy Vaughn on 06/01/2022 19:13:52:

The problem I have Henry is getting stuff to stick in my old brain. It helps now that I have a second screen on my PC so I can keep reference/tutorial material open at the same time as Fusion 360 so that I can more easily go back to remind myself again about what I've already forgotten! I've been using Paul McWhorter's videos and they've been very useful as a starter. Continual product updates to user interfaces is a modern curse unless you are selling training.

Aye, I know the feeling since having Covid at the beginning of November my brain isn't what it was, long Covid apparently, and I know just what you mean. I usually use F360 on a 17" laptop on my lap so not much space for another screen, hence thinking about a reference book.

[Pete.Participant @pete-2]

Posted by Roy Vaughn on 15/05/2021 23:33:19:

I've come across some daft stuff on the Internet but a thread discussing a video we aren't allowed to watch is right up there with the best!

👍 Thanks this made me laugh

[SillyOldDufferModerator @sillyoldduffer]

Posted by Roy Vaughn on 02/05/2020 19:16:46:

…

The idea that solving a hardware problem in software is possible mad comes as a surprise, in the microcontroller world the software often (usually) has to work around and protect against "hardware" artifacts, that is, the real world. For example, contact debounce is simple in software …

Roy

Hi Roy,

I apologise for 'mad', it was a very poorly chosen word! I was thinking of my dodgy efforts at overcoming hardware problems in software, especially interference, not your valid examples!

Been playing with a couple of different 433Mhz transmitter and receiver modules and Arduino this week and one of the transmitters (claimed 90m range) generates enough RF to upset the Arduino. Scope screenshot shows 3V of noise superimposed on an Arduino 5V digital output pin when the transmitter is sending!

And the el-cheapo 5V wall wart I first used to power the receiver is noisy enough to deafen it.

Someone who shall remain nameless spent a day attempting to fix the software rather than sort out shielding, short wires, and a better power supply.

Dave

[SillyOldDufferModerator @sillyoldduffer]

Posted by Tony Pratt 1 on 02/05/2020 16:00:01:

Posted by Roy Vaughn on 02/05/2020 11:33:23:

… During the build I found that screened cable was needed to stabilise the display even without obvious sources of interference nearby. …I've found that when the cable is passed close to either the lathe's motor or the stepper, there is still occasional interference. … Obviously I will arrange the final installation to minimise the chance of interference but the fact that it could still occur with potentially unfortunate results convinced me that something needed to be done. I've therefore made a small modification to the code to disable keypad input when the spindle is turning….

Just my opinion but I like the flexibility of changing thing when the spindle is turning.

Tony

+1 to Tony. But also, it goes against my grain to cure a hardware fault like interference with a software fix. It's not mad, but I'd prefer to fix the interference first. There's a hint of a related, but different, cable problem in 'I found that screened cable was needed to stabilise the display'.  Likely the signal is being distorted as well.

The LED&KEY display is based on a TM1638 chip. It communicates with a computer with a fast synchronised serial data stream, which is encoded and decoded at each end. It's data rather than plain switching. In addition to power, there are CLOCK, STROBE and DATA signals. My LED module runs at about 300kHz, a radio frequency that doesn't carry well on ordinary cable, being prone to radiate and receive interference and distort. The application  really needs a data cable.

I suggest the problem is made for an Ethernet Patch Cable and RJ45 sockets.

Ethernet cable contains 4 twisted pairs and a shield.

So Power (+ and -ground) on first pair, STROBE & ground on second, DATA & ground on fourth, CLOCK and ground on the fourth. Then the POSITIVE, STROBE, DATA, and CLOCK signals are each independently balanced against ground to prevent interference and cross-talk. And all four pairs are further shielded behind an Aluminium foil wrap. Carrying high frequency signals on twisted pairs allows them to go further along a cable without losing shape and amplitude.

A standard ethernet patch cable can be bought: plug pin connections described here.

However, at the sockets, the pins are not Ethernet standard. Instead the ground side of each pair should be brought together and grounded at both sockets. Then the other 4 pins are run to POSITIVE, STROBE, DATA, and CLOCK; any pair can be used provided the computer and display ends match!

External RF interference to power and control circuits is almost always due bad practice inside the victim. It's the electronic equivalent of a leaky roof. Better to fix the roof than catch drips in buckets!

Dave

 

 

 

Edited By SillyOldDuffer on 02/05/2020 17:20:04

[Tony Pratt 1Participant @tonypratt1]

Posted by Roy Vaughn on 02/05/2020 11:33:23:

I have just got my implementation up and running on the lathe, all is operating as it should. During the build I found that screened cable was needed to stabilise the display even without obvious sources of interference nearby. As the control panel is not yet permanently mounted I can move it around to test its residual susceptibility to interference. I've found that when the cable is passed close to either the lathe's motor or the stepper, there is still occasional interference. It gave me a fright the first time it happened with the lathe turning and the feed engaged, when the system switched itself unbidden from a slow metric feed to coarse tpi. Obviously I will arrange the final installation to minimise the chance of interference but the fact that it could still occur with potentially unfortunate results convinced me that something needed to be done. I've therefore made a small modification to the code to disable keypad input when the spindle is turning. Has anyone else made any safety mods to the software?

Just my opinion but I like the flexibility of changing thing when the spindle is turning.

Tony

[Brian OldfordParticipant @brianoldford70365]

Posted by Roy Vaughn on 02/05/2020 11:33:23:

I have just got my implementation up and running on the lathe, all is operating as it should. During the build I found that screened cable was needed to stabilise the display even without obvious sources of interference nearby. As the control panel is not yet permanently mounted I can move it around to test its residual susceptibility to interference. I've found that when the cable is passed close to either the lathe's motor or the stepper, there is still occasional interference. It gave me a fright the first time it happened with the lathe turning and the feed engaged, when the system switched itself unbidden from a slow metric feed to coarse tpi. Obviously I will arrange the final installation to minimise the chance of interference but the fact that it could still occur with potentially unfortunate results convinced me that something needed to be done. I've therefore made a small modification to the code to disable keypad input when the spindle is turning. Has anyone else made any safety mods to the software?

Perhaps you would be kind enough to publish those code mods at the Github repository.

[John MCParticipant @johnmc39344]

Posted by Roy Vaughn on 23/12/2019 11:02:23:

John, you seem to be suggesting that the rear outer race should be free to move in the housing. This is exactly the condition that must be avoided at all costs with this type of motor. As Rob M says in his article, the hammering the rear bearing gets will eventually loosen the outer race if it not securely fitted, friction will build up and performance will be lost. High performance motors which use standard ball races often use a nut to secure the inner to the shaft. The philosophy nowadays is to clamp everything up so it can't move. The expense of shimming is the price to be paid.

So, the recommendation is to impose a preload on the bearing to try and stop them moving in the case? Looking at the lengths these guys go to extract the last few watts of power from these engines it seems to me to be counter productive.

Frankly, it looks like some engine designers have gone down a non-productive alley with design. While some of what they do is impressive in terms of power to weight ratio, the designs are not so good. Time for a rethink perhaps.

[blowlampParticipant @blowlamp]

Posted by Roy Vaughn on 07/12/2019 12:37:19:

Thanks for that insight Martin, not worth potentially spoiling the ship for a h'p'orth of tar.

Re the motor controller, is it always necessary to set it up from a PC or are they normally supplied pre-configured? I'm thinking particularly of the hybrid stepper kits from Stepperonline?

Roy

For almost all applications (99% I would think) they are ready to go. My understanding is that the driver constantly monitors & updates its output 'on the fly' to best suit the current operating conditions – I believe that is why they are based around a very powerful processing chip.

Martin.

[Tony Pratt 1Participant @tonypratt1]

Posted by Roy Vaughn on 05/12/2019 09:59:03:

Thanks Phil for the TI steer and John for the installation info.

Tony, can you tell us a bit more about your stepper problems and how you resolved them? Are the torque specs not to be believed?

Roy

I first used a Nema 24 stepper from an Ebay supplier & under a decent cut the motor was not up to the task, on checking the holding torque I got just over half of the advertised 4 Nm, motor was rejected & I got a full refund. I got the 2nd one from a UK supplier also advertised at 4Nm, this was also not giving out a holding torque of the full 4 Nm but useable.

Tony

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Roy Vaughn on 01/12/2019 00:05:34:

Michael, I'm not an expert either but clicking on the Ebay link in the encoder line item on the Clough42 web site takes me to something with what looks like an identical spec. Not worth ordering anything else and risking problems for the sake of a couple of weeks in my view. The big ticket item is the stepper motor and controller.

Zan, thanks for the link, looks like very comprehensive description of the mods. For reference in full (sorry I don't know how to make it clickable), it's:

http://www.jeffree.co.uk/pages/ml7-cnc/part-1-files/myfordcncpt1.htm

Roy

.

Cheers, Roy

Here’s your **LINK**

http://www.jeffree.co.uk/pages/ml7-cnc/part-1-files/myfordcncpt1.htm

MichaelG.

[Brian OldfordParticipant @brianoldford70365]

Posted by Roy Vaughn on 26/11/2019 19:57:16:

Thanks for your replies, saves a bit of money compared with doing it yourself direct with the States.

Is anyone else planning to fit ELS to a Myford S7?

Hi Roy

Between my other large list of other jobs I'm in the process of fitting one to my S7.

I'm trying very hard to squeeze the stepper motor into the change gear casing at the LH end of the machine.

Brian