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Member postings for Ed Duffner

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

Thread: Bulbs Electric Life of
24/07/2020 20:07:46

In my experience LED's always lasted a lot longer than incandescent lamps. I would be thinking along the lines of a standard LED (not high brightness) and maybe use a translucent shade or 'envelope' to decrease the brightness more, if required.

I expect some of the electronics guys here could describe a good solution, perhaps with a dimmer circuit.


Thread: How to stop scam phone calls for good?
21/07/2020 18:20:48

I can't understand why the call blocking software or embedded firmware in phones can't be somehow incorporated at the exchange. Makes one wonder, whether having to buy additional hardware with these features is a scam itself.

Ideally and in my humble opinion, any call that isn't traceable to source, including geographical location should not be allowed to connect to any other phone or device.


Thread: Slitting Saw Arbor
19/07/2020 14:55:32

I have one of those stepped arbors and agree with Russel. They also allow only very shallow depth cuts (not depth of cut!) i.e. there's not a lot of room between the top of the blade and the quill.


Thread: Jumpy readout DRO scales on WM16 mill
08/07/2020 18:21:03

Hi Rik,

I had a similar set of readouts on my WM-16 and simiilar issues as you have described. I believe it was due to the proximity of the USB cables to the machine's mains cable, especially when the cables crossed on or near 90° to each other.


Thread: Ultrasonics and citric acid
29/06/2020 19:49:18

Could you put the acid inside a container (jar?) then lower the jar into the cleaner fluid? Supported well so the acid cannot spiil into the cleaner solution?

I'm not sure how well ultrasonic waves pass through container walls. Might be worth a try. It seems to work for some of the resin 3D printing people.


Thread: Stroboscopic effect
28/06/2020 13:34:11

Perhaps turn a plug that is final diameter, get close by eye and then sneek up on final diameter to match the plug.


If I remember correctly, twin fluorescent lights back in the day had lead/lag circuits utiising a capacitor in one of the lamps' circuits. This would make both circuits out of phase to each other and cancel out the strobe effect which could make rotating machinery appear stationary.

Thread: POCKETMAGS works with WINDOWS 10 and WINDOWS 8.2
25/06/2020 14:43:34

Hi Neil,

I just looked at this and if you'll permit me to make a couple of comments, unless I misunderstood.

The app is downloadable from the Microsoft app store. I just downloaded it and when launching the app it's asking me to enter my Microsoft login details. If I cancel the login dialogue box it reappears. The only way to get out of this loop is to tap Alt-F4 twice quickly. ( ...or use task manager and kill the process I suppose). So it seems to require a Microsoft login. I'm wondering why?

Edit: Consequently I've recently installed the latest Windows 10 update and the pockets mags reader looks very nice in the new microsoft Edge browser.


Edited By Ed Duffner on 25/06/2020 14:58:12

Thread: Making a Nikon P1000 stable to be able to take moon & star shots
25/06/2020 08:00:05

A very neat solution Steve, nice job!

Would have been nice if Nikon had included a tripod mount into the lens barrel.


Thread: Change to the Code of Conduct
23/06/2020 00:30:22

Martin C, thank you for the explanation and example. I can see the issue in those particular scenarios. The video could have been reported I suppose, as a conflict of interest. Maybe it was?

It's a shame that Youtube is now a money making Google platform at all. I resented a comment by one youtube welder guy who called viewers freeloaders because he chose to upload his videos and expected payment of some kind. That isn't what youtube was started for.


22/06/2020 23:12:11

I'll put my hand up here and say I don't understand, can this be simplified, clarified a bit more please? ...and the thread seems to be diverging into the old CE versus C E thing again.


- Are we only allowed to post links to the advertisers who facilitate this forum? Isn't that a form of bullying or what our friends across the pond call capitalism? given that I'm a paying subscriber to both ME and MEW. What is and is not acceptable? examples please?

- If somebody asks how I got a nice finish on aluminium (rare I know!), am I not allowed to post a link to the polished inserts I use from a UK supplier who might source their products from outside the UK?

- Isn't it a case that the advertisers who are present on the forum supply non UK conformant goods? I've had a few bad items from known UK hobby suppliers who advertise here. I can list the examples if required, but have historically not called out (I think) any supplier in the interest of keeping things positive and friendly.

In my mind, posting links to an advertiser spreads the knowledge, helps the hobby grow and may in fact produce follow-on sales from the forums advertisers. Model Engineers can make an informed decision based on their means and what is available to them. Such is the democracy that we live in.


Personally I hate all forms of advertising shoved in my face, every where I look or go. But I tolerate it because I can do nothing about it, that's the way the world is ...and how Google wants it.


Not trying to be awkward, would just like to understand better.


Edited By Ed Duffner on 22/06/2020 23:36:31

Thread: Weeds in a 'lawn'
21/06/2020 17:18:43

Some weeds apparently have a last go at growing before being killed off by weed killer. I did my lawn 2 weeks ago and I now have black areas which I need to rake out.

Too much weed killer or too often can 'burn' the grass.


Thread: Number punches
21/06/2020 14:39:43

I have the 2.0mm Pryor punches. It's worth checking them over and make allowances for off-set characters.

Some of my numbers are not central to the punch body.




Edited By Ed Duffner on 21/06/2020 14:40:11

Thread: UNF reducing bush
20/06/2020 14:56:38

A few results from Google <here> ...will need some further lookup from the results, based on the required application (air, water, gas etc).

Search term "7/8 male to 3/4 female UNF reducer". You could also try 'coupler'.


Thread: Unusual problem with 3D printer
15/06/2020 18:31:05

Print a 3D printer for the cat yes.

Thread: Slide projector drive help?
10/06/2020 18:05:09

IMHO, rather than modifying what you already have, I would try cleaning the shaft first with IPA or methylated spirit to remove any build-up of lubricant or contamination . But I would not try this on the rubber idler as the rubber may expand and loosen when exposed to a spirit based fluid.


Thread: Hello from Leicester and what have I done wrong
07/06/2020 12:47:28

Hello Andy,

I expect you have already done this, but I would double check the gear set up matches the frontpanel info.

Looking at your photo, you could try swapping the two smallest gears in the cluster. The top-most small gear appears to have a bigger diameter than the middle mounted small gear.


Thread: Soldering Iron
31/05/2020 13:30:32

I have a combined iron and hot air station, a WEP 898BD. I've used it for standard through-hole soldering and some SMD soldering (68020 CPU - QFP80 package) and similar. The hot air nozzle is nice to use for heat shrink (rather than using a naked flame) as well as helping desoldering.


Thread: What Did You Do Today 2020
30/05/2020 19:52:33

Removed a Sycamore tree stump from the garden. Multiple trunks between Ø2.0" and 4". The main root was about 7" to 8".

Started making a brcket to add a magnetic Z-axis scale on the the quill on my milling machine.

Currenlty watching Live(I think) the Spacex launch.


Thread: Wanted Pre loved Warco WM 180
29/05/2020 17:06:01

Might be worth an enquiry to Warco. They sometimes have used machines for sale.


Thread: Macro-photography
25/05/2020 20:15:35

An experiment in making model split big-end bearings for a twin marine engine and a couple of insects from the garden. More insects in the album. The bearings are Ø5.0mm ID.





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