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Post by speedysteve on Mar 21, 2019 9:20:54 GMT
I have several redundant WaveIO sample rate indicator LEDs / holes for, in the front of my Najda panel.
8 to be precise! Should be more than enough.
I wondered if using optic fibres to carry the light show from Allo's Kali surface mounted LED status lights to the holes would work?
At about £4 for a metre of 2 or 3mm diameter optic fibre it seems a no brainer to try.
Anyone experience with optic fibres?
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Post by MartinT on Mar 21, 2019 10:25:54 GMT
You beat me to it, Steve. I think doing it with optical fibres would be dead cool. You could buy a few very cheap Toslink cables on eBay which would give you a protected fibre that would fit holes in the front panel quite nicely. Just polish both ends after snipping.
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Post by speedysteve on Mar 21, 2019 11:07:47 GMT
You beat me to it, Steve. I think doing it with optical fibres would be dead cool. You could buy a few very cheap Toslink cables on eBay which would give you a protected fibre that would fit holes in the front panel quite nicely. Just polish both ends after snipping. Yes! Already got some redundant Toslinks.. Watch this space  |
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Post by MartinT on Mar 21, 2019 11:40:43 GMT
I look forward to that. The Kali light show is sadly hidden inside my Audiophonics streamer, but if you have success I might take to its front panel...
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Post by speedysteve on Mar 21, 2019 20:04:08 GMT
Here is a lash up. Uncut Toslink just Blutak'd in place.   Quite bright enough for me. I hate over bright leds, esp. blue! I really need a 3mm diameter fibre to fit the holes where the WaveIO leds were, and so will buy a metre. Need to figure out a good non-invasive way of holding the fibre end on the surface mounted LEDs. Might need to turn little Delrin fibre socket pads that take the 3mm fibre and hold it onto the LEDs lit part with an end that opens out to fit over the surface mounted rectangular part. I don't mind hot glue gunning or super gluing them on. Looking at Kali's LEDs  I think a block of Delrin with 6 holes in the right place for the left led bank and another block for the right group, where the optic fibre sticks through and then securing the blocks would be simplest. There's another odd Led off to right to round up too. I have 8 holes so will need to be a bit selective.. All part of the fun. Earlier this week both my lathes were out of commission. A new run Capacitor for the motor of the big one fixed that, and a new Forward-0-Reverse switch fixed the little one |
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Post by petea on Mar 21, 2019 20:08:39 GMT
Looking good. You should have used one of those folk forward-o-reverseo switches though. It would run much smoother then! |
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Post by MartinT on Mar 21, 2019 20:23:32 GMT
Fast work! I would probably do just the 6 sample rate LEDs. That does come out plenty bright, doesn't it?
So called 'medical grade' fibre as used by Kimber is thicker. Not sure where you can buy it from.
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Post by speedysteve on Mar 21, 2019 21:08:57 GMT
Fast work! I would probably do just the 6 sample rate LEDs. That does come out plenty bright, doesn't it? So called 'medical grade' fibre as used by Kimber is thicker. Not sure where you can buy it from. Hehe, don't need pure jitter free here Martin Have 3mm eBay stuff on order. |
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Post by speedysteve on Mar 22, 2019 17:08:13 GMT
Took a little me time making a block to hold the Optic fibres for the bank of sample rate indicator LEDs. Didn't have any Delrin but have lots of ebony  .. Measured up the distances between the LEDs and then used the milling attachment on my little lathe to machine out a channel so the edges clear the LEDs.  I then moved the piece about using the crossfeed and the milling attachment vertical feed to make 6 precision distanced 3mm holes. Looks like it will work a treat. Here it is mounted on Kali showing the LEDs shining through the holes aligning nicely, with 3 of the 6 LEDs being put through their paces..    Just need the optic fibre now! I think I want empty and lock from the other LEDs so I can see Kali is ready when idle and locked on along with the sample rate.. |
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Post by MartinT on Mar 22, 2019 17:24:06 GMT
Nice work! I was thinking of supergluing the fibre cables to the Kali LEDs but that does seem a bit permanent. How will you attach the ebony block to the Kali?
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Post by speedysteve on Mar 22, 2019 17:53:03 GMT
Nice work! I was thinking of supergluing the fibre cables to the Kali LEDs but that does seem a bit permanent. How will you attach the ebony block to the Kali? Probably hot glue gun as that can be peeled off. Micro self tapper screws are another possibly, avoiding any circuit board tracks of course. It depends how compliant the optic fibre is.. |
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Post by speedysteve on Mar 23, 2019 22:24:27 GMT
Having given the fixing of the optic fibre array holder to the Kali PCB some thought, I think miniture G clamps that I'll fabricate would be the least invasive and elegant of solutions.
2 ought to do it.
That'll be tomorrow's project..
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Post by MartinT on Mar 23, 2019 23:56:47 GMT
Will you glue the optical fibres into the holes or use some other method?
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Post by speedysteve on Mar 24, 2019 12:51:22 GMT
Will you glue the optical fibres into the holes or use some other method? I think they will be interference fit both ends. 3mm holes fitted the LEDs nice and snugly. If not a little thread or stud lock and hold them in place with Blutak or tape while it hardens should work. Or a dobb of hot glue gun on top.. nice and quick - I like.. Superglue has a habit of capillary actioning where you don't want it.. |
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Post by speedysteve on Mar 24, 2019 18:21:52 GMT
G clamps made. The gap they cover is between 8 and 5mm. Kali plus optic fibre array holder thickness is 6mm. Felt pads to go underside of Kali. We'll see if it all comes together tomorrow or Tues..  |
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Post by MartinT on Mar 24, 2019 18:23:23 GMT
Nice fabrication, Steve. Have you been watching too much Project Binky?
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Post by speedysteve on Mar 24, 2019 20:15:23 GMT
Nice fabrication, Steve. Have you been watching too much Project Binky? Haven't seen that at all.. This is just how I'm wired These are just quick lash ups. I could have made them miniture elegance but life's too short.. |
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Post by MartinT on Mar 24, 2019 20:27:04 GMT
I suggest you watch Project Binky on YouTube, there's a thread about it here. It's right up your street.
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Post by speedysteve on Mar 25, 2019 12:50:34 GMT
Optic fibre arrived. It's a cheap plastic type (I knew that when I ordered it), it means is easy to cut and doesn't shatter down its length like glass would if you cut it with sidecutters.. Easy to then smooth with fine bench grinder wheel and then onto 400 / 800 / 1200 / 1500 grit wet and dry. The latter is quite smooth enough to transmit light well. In fact even just snipped off transmits pretty well! 3mm stuff is very stiff so I heated it with a paint stripper heat gun until pliant and bent it where I wanted. Not the prettiest I've ever done but it works fine. The clamps worked like a dream. The fibre push fitting into both 3mm holes in Najda and the ebony block I made. With 3mm diameter fibre it's not that critical where the fibre is over the LEDs. Big enough hit area, so very easy to align the array block and clamp gently. 1m only did 5 lights. Offered another metre!  Quite bright enough to see from listening seat in daylight.   Can someone explain the lights. Pause and idle sits with 48K and 48K family / Empty on. Playing my Flac files I get 96K and lock.. all good. I need to upload some more high res files On Spotify I get no lights from the 44.1 to 192 lights, lock and 44.1 family light on. Does that sound right? Lid can go on soon. |
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Post by MartinT on Mar 25, 2019 13:45:58 GMT
I would have thought Spotify should show the 44.1 light as that is what my DAC shows when playing Spotty.
Nicely done.
Now you need to learn the ancient skill of Letraset for your front panel!
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..