Search found 56 matches

by jmmcg
Wed Mar 17, 2021 4:05 pm
Forum: Assembly instructions for the Cylinder V3 clock kit
Topic: Help!
Replies: 28
Views: 26128

Re: Help!

;)
by jmmcg
Mon Feb 08, 2021 8:39 pm
Forum: Assembly instructions for the Cylinder V3 clock kit
Topic: Help!
Replies: 28
Views: 26128

Re: Help!

Tony wrote: Mon Feb 08, 2021 2:22 am If you had 2 clocks running in series they would display '1.048596'. Probably.

It made more sense as a reference back when I designed it.
So it is simply was test code to verify the communication between them?
by jmmcg
Fri Feb 05, 2021 10:25 pm
Forum: Assembly instructions for the Cylinder V3 clock kit
Topic: Help!
Replies: 28
Views: 26128

Re: Help!

When the clock does the "slot-machine mode" I notice that it stops at either 1047, 1048 or 1049 roughly evenly then holds that display for a few seconds before returning to the normal time display. What do these numbers mean?
by jmmcg
Tue Dec 08, 2020 12:44 pm
Forum: Assembly instructions for the Cylinder V3 clock kit
Topic: Help!
Replies: 28
Views: 26128

Re: Help!

... Try covering about 3/4 of the window with heatshrink for now. A software mod will probably be needed though in future kits. [SOLVED] As Tony suggested, the addition of the heat-shrink to reduce the sensitivity of IC4 fixed it. Some experimentation was need regarding how much to cover up, but re...
by jmmcg
Mon Nov 23, 2020 6:20 pm
Forum: Assembly instructions for the Cylinder V3 clock kit
Topic: Help!
Replies: 28
Views: 26128

Re: Help!

One of the cylinder clocks I built has a curious issue: the IR transmitter/receiver circuit for the menu system seems to "be too sensitive". It can trigger if sunlight flashes on it, I pass by, or even it would look like it happens spontaneously! I have tried turning it off, waiting a few ...
by jmmcg
Mon Aug 17, 2020 8:55 pm
Forum: Assembly instructions for the Cylinder V3 clock kit
Topic: Help!
Replies: 28
Views: 26128

Re: Help!

A beginner's advice: Practise assembly!! When everything is built and the end-caps finished and the perspex cylinder washed: doing a first assembly then is a disaster: the boards are a very tight fit and could so easily scratch the perspex cylinder. Yes: the cylinder is extremely sensitive to scratc...
by jmmcg
Mon Aug 17, 2020 8:31 pm
Forum: Gallery
Topic: Cylinder Clock
Replies: 0
Views: 3061

Cylinder Clock

Two of the cylinder clocks I built during the COVID-19 pandemic. Note the mods: more flexible & longer USB power lead, but more importantly the GNSS module mounted underneath that supplies time to the clock and to the USB data lines. If connected to my PC, when running ntpd, it could be a stratu...
by jmmcg
Sun Aug 16, 2020 4:32 pm
Forum: Plasma button of Doooom
Topic: PCB assembly discussion
Replies: 22
Views: 28192

Re: PCB assembly discussion

XXXsnipXXX So I conclude that the maximum voltage to T1 is somehow lacking in the "dim" buttons. Yet how it is lacking I am baffled. Tony, could you please advise? A thought: I have read a tiny bit about transformer windings and the effect of the secondary being wound in the opposite dire...
by jmmcg
Sat Aug 15, 2020 7:06 pm
Forum: Assembly instructions for the Cylinder V3 clock kit
Topic: Help!
Replies: 28
Views: 26128

Re: Help!

[SOLVED]
jmmcg wrote:XXXsnipXXX
I tried shorting out the two blue leds under the tubes in question. This had no effect.
A replacement nixie display PCB kit was supplied and that fixed this problem.
by jmmcg
Thu Aug 13, 2020 2:49 pm
Forum: Plasma button of Doooom
Topic: PCB assembly discussion
Replies: 22
Views: 28192

Re: PCB assembly discussion

XXXsnipXXX I have tried swapping T1, the diode and the PIC chip from either the working button or spares, successively, none had any effect on the "dim" nixie. Into the base of T1 I see a nice 5V square-wave at 111kHz for both "dim" and "bright" (i.e. that part of the ...