gnuZ Posted August 4, 2005 Share Posted August 4, 2005 (edited) Here's a nice little update for everyone. I got a package full of parts this morning and after an hour or so of soldering... my DIY optical crossfader works! It isn't attached to a crossfader body yet, but the electronic part works. Here's a video of me testing it, and here's the PCB: The yellow line is a jumper that you can make out in the video. I used Optek Technologies OPB620 optical interrupters for the switches. Also, If anyone has any broken or worn but physically working crossfaders they'd like to donate, please PM me. Thanks. Update 24/12/05: I finally have pictures of my modified Stanton SA-3 crossfader. Here they are: Click on the pictures to see larger versions. As you can see, I chopped up the stock SA-3 fader and fitted my own ghetto optical PCB on there. I used different optical interrupters for this one than the one in the video; this one uses the Panasonic CNZ1021. The cut is extremely sharp; using the curve control on my SA-3 at the highest/sharpest position it's basically on and off and at the dullest/lowest position it has a very slight fade (but still sharper than the highest/sharpest position on the stock fader). As for feel, it was (and still is) extremely loose, but due to being used this way for the past couple of months (and thus less smooth due to dirt and such) and me becoming used to it, it doesn't really bother me. Edited December 24, 2005 by gnuZ Quote Link to comment Share on other sites More sharing options...
tutniks123 Posted August 4, 2005 Share Posted August 4, 2005 wow i really want to see this thing completed. btw what track are u playing? i recognize it from the night at the knitting factory dvd. Quote Link to comment Share on other sites More sharing options...
gnuZ Posted August 4, 2005 Author Share Posted August 4, 2005 I don't know if it has a name but it's the second beat on Toadstyle's "Get 'Em". Quote Link to comment Share on other sites More sharing options...
cbay Posted August 4, 2005 Share Posted August 4, 2005 awesome.. thats pretty cool man. Quote Link to comment Share on other sites More sharing options...
Lorn Posted August 4, 2005 Share Posted August 4, 2005 That's sick, man. Keep at it... Quote Link to comment Share on other sites More sharing options...
Dub-Se7en Posted August 4, 2005 Share Posted August 4, 2005 good work Quote Link to comment Share on other sites More sharing options...
Kian Posted August 4, 2005 Share Posted August 4, 2005 That's awesome but it's exactly what focus did on the focus fader. Quote Link to comment Share on other sites More sharing options...
gnuZ Posted August 4, 2005 Author Share Posted August 4, 2005 (edited) Yeah, that's exactly what it is. It's a Focus Fader clone based off of those drawings of the PCB Mike Reezy posted a little while back. Since no one knows what photointerrupters are actually on the Focus Fader I did it just to show that you could use the OPB620 and that you could make your own. I have some other switches from different companies but I haven't tried them yet so I'm not sure if they'll work. Edited August 4, 2005 by gnuZ Quote Link to comment Share on other sites More sharing options...
Steve Posted August 4, 2005 Share Posted August 4, 2005 How much did it cost to make? I realise it's not a fully working fader yet though. Quote Link to comment Share on other sites More sharing options...
gnuZ Posted August 4, 2005 Author Share Posted August 4, 2005 (edited) How much did it cost to make? I realise it's not a fully working fader yet though.<{POST_SNAPBACK}> 2x Optek Technologies OPB620 = 2 x $1.624x Panasonic resistors = 4 x $0.171x Radio Shack Multipurpose PC Board = 1 x 1.79 TOTAL = $5.71 USD Of course, this is just the cost of used parts only without taxes. DigiKey.com has a minimum order of 10 for each value of resistors you purchase. Then add shipping, handling, tax, etc. Edited August 4, 2005 by gnuZ Quote Link to comment Share on other sites More sharing options...
Mista_Ed Posted August 5, 2005 Share Posted August 5, 2005 nice one! Quote Link to comment Share on other sites More sharing options...
Liam Posted August 5, 2005 Share Posted August 5, 2005 I have a very good metalworkers perhaps 1000 yards up the road form me. If you want to build another PCB and post it to me and I'll talk to them about getting a body custom-made? They do a lot of small jobs for next to nothing there, they're really friendly. Quote Link to comment Share on other sites More sharing options...
gnuZ Posted December 24, 2005 Author Share Posted December 24, 2005 Updated with pictures. Quote Link to comment Share on other sites More sharing options...
Mixologist Posted December 26, 2005 Share Posted December 26, 2005 Nice one Gnuz, now all you have to do is create some sort of tension or weight modifier and you'll have an f'ing sweet crossfader. I want that puppy to glide between my fingers. Quote Link to comment Share on other sites More sharing options...
p-ski Posted December 27, 2005 Share Posted December 27, 2005 can u repost th evideo and possibly explain it in better detail for some one who doesnt no the internals amazingly well Quote Link to comment Share on other sites More sharing options...
cbay Posted December 27, 2005 Share Posted December 27, 2005 if i knew anything about electronics i'd build one. seriously, thats pretty sweet. i'll ask some mates for some help Quote Link to comment Share on other sites More sharing options...
Focus Posted August 24, 2013 Share Posted August 24, 2013 (edited) Well, looks like I better add 2 cents here....Let's put this in perspective it was first done in 1998, what was going onat the time or what where you doing then? I usually like to start off with that first since we take things out of contextand for granted...We live in the present and assume everything was as it is now.The internet has changed it all, acces to information and parts at a fingertip. For scratching super clean cuts is what we are after...special mention that the grand Epiphanywas possible due to Vestax using the VCA Circuity...That was the catalyst...So big ups Vestax you made it possible... Good job with this ish though, from the get go if you were around in the 90's/2000's the plans were online and my perspective wasthat it was easy to do so any of the Scratch Ninjas could do it for themselves, using Hall Effect Sensors or OpticalSensors etc..any type of transducer you could hook up... My surprise is that there is not that many Scratch Heads doing it now or more often, Everybody has dead faders laying aroundso why not take your favorite Vestax,Rane,Alps,Stanton,Alpha,Bourns,Noble,TKD,Pro X fade etc etc...Slide potentiometerand add the sensors the you have your own custom made Super Scratch Purpose Fader... For example the Innofader which is what all the really Cool Kids are using in school now I found out is just a Bourns/Forward ElectronicsMechanism...If you prefer that feel then get you some for a few dollars online... There are so many quality mechanisms out there now and that's 99.9% of it if you are into Cuting and Scratching...All that extra circuitry is fluf and you don't need it for cutting it up fresh... http://www.fwd.com.tw/doc/pd/RFXXBTK.pdf That fader you used is an Alpha Fader and you added the shutter to it, so essentially you madecopy of the Focus Fader V1.0 first run...The Alpha Mechanism was used and larger Sensors...Parts are not that critical... From my Facebook page, first run Focus Fader V1.0 Alpha Mechanism with LargerSensors..... Edited August 27, 2013 by Focus Quote Link to comment Share on other sites More sharing options...
deejayakrylik Posted June 9, 2022 Share Posted June 9, 2022 i need to make one, can help me @gnuZ Quote Link to comment Share on other sites More sharing options...
virak Posted June 12, 2022 Share Posted June 12, 2022 +1 Got some old faders I'd like to breathe new life into, but all the info has vanished together with the old forums. Quote Link to comment Share on other sites More sharing options...
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