tag:blogger.com,1999:blog-4193169306787079445.comments2023-06-03T08:07:36.208-04:00WAK'dWAKhttp://www.blogger.com/profile/04866373490827292416noreply@blogger.comBlogger73125tag:blogger.com,1999:blog-4193169306787079445.post-27198717728063219522022-07-07T15:03:35.295-04:002022-07-07T15:03:35.295-04:00Greaat read thank youGreaat read thank youScarlett Hodgehttps://www.scarletthodge.com/noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-86643003515076912122021-09-09T09:15:49.710-04:002021-09-09T09:15:49.710-04:00Awesome! Anxiously awaiting update. Praying all st...Awesome! Anxiously awaiting update. Praying all stay safe at home and school. 😷🧼🙌bjkhttps://www.blogger.com/profile/17098274105622059358noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-88323832567576101322021-09-08T13:39:11.247-04:002021-09-08T13:39:11.247-04:00Yes, there is a "wall wart" transformer ...Yes, there is a "wall wart" transformer that goes along with it.Anonymoushttps://www.blogger.com/profile/07176054822103033257noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-26750229431085459152021-03-11T05:01:35.634-05:002021-03-11T05:01:35.634-05:00As always, wonderfully ingenious! Does the little ...As always, wonderfully ingenious! Does the little computer need a source of power? bjkhttps://www.blogger.com/profile/17098274105622059358noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-5937013330149342332020-07-15T02:30:38.790-04:002020-07-15T02:30:38.790-04:00Wonderful great going, I love your work and look f...Wonderful great going, I love your work and look forward for more work from your side. I am a regular visitor of this site and by now have suggested many people.<br /><a href="https://klenspop.com/color/" rel="nofollow">best coloured contact lenses</a><br />Anonymoushttps://www.blogger.com/profile/05519897710690805290noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-80774204041207875702019-09-25T11:14:06.498-04:002019-09-25T11:14:06.498-04:00Ditto Matt's reply!Ditto Matt's reply!bjkhttps://www.blogger.com/profile/17098274105622059358noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-43390381390779965312019-09-24T07:20:39.414-04:002019-09-24T07:20:39.414-04:00Awesome project! Can't wait to hear more!Awesome project! Can't wait to hear more!Matt Claysenhttps://www.blogger.com/profile/05078702257739969722noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-27651663514502014422019-09-10T16:38:53.805-04:002019-09-10T16:38:53.805-04:00Certainly the pipes were the most time consuming p...Certainly the pipes were the most time consuming part of my build so if you can short circuit that using PVC I think that is a good do.<br />Yes, I have looked long and hard at those Chinese solenoids. At $3 each they are certainly worth a try. I bought mine from Electronics Goldmine and they were heavier duty, but they were used. An advantage/disadvantage of mine is that they have a 100% duty cycle. Thus they never overheat. The other side of that coin though is that continuous duty solenoids tend to be weaker than a comparably sized non-continuous. <br />Also unless the plunger is captive there isn't a fixed throw. It all depends on how much power you need. The further out the core is, the weaker the pull, whereas the last 1/16th inch of pull would knock you off your feet.(If you had tiny tiny feet.) <br />I don't want to discourage you from trying anything but I agree that the servos would be much slower and if you don't get a clean valve opening you could get some squeaking. On the other hand solenoids can be very noisy and that noise is percussive so it can be hard to get rid of. I used o-rings as cushions but they still make noise.<br />Just for the sake of clarification, I didn't use mosfets, I just used darlington transistors that are about four for a dollar.<br />One other thought, the reason I was looking at those Chinese solenoids was I have been working on another project, a self-playing MIDI guitar and was hoping to use them to fret the strings. With the solenoids I have, though, I just couldn't get a large enough combination of power and throw. Ultimately I went with the kind of pneumatics that they use in player pianos. These have the advantage that you can make them with whatever speed, power and reach that you want. I posted the first part of a two or three part blog the other day. In the first one I describe using servos to pick the strings. In the next one or two I will talk about the pneumatics for fretting. You might take a look at that. Some type of air valve is certainly conventional on large older pipe organs. I still used solenoid valves but using a more typical pipe organ valve with some sort of pneumatic has the advantage that it doesn't need much throw.<br />If you get a chance I would love to hear about your experience with the Chinese solenoids.WAKhttps://www.blogger.com/profile/04866373490827292416noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-88784188542596564132019-09-10T11:24:21.247-04:002019-09-10T11:24:21.247-04:00Thanks for the response! That helps. I've been...Thanks for the response! That helps. I've been considering a calliope- type MIDI machine. The "whistles" on a calliope, on the surface, at least, seem simpler to produce & tune than the wood organ pipes. I'm thinkin' PVC pipes for the whistles.<br />I see there are some Chinese solenoids that do 10mm, which is roughly 3/8". Those solenoids can be had for under $3 each when ordered from China. I'm gonna order a few and see what happens. <br />Another thought would be mini-servo motors to pull up the "valves". I suspect they might be slower-acting than the solenoids, but draw way less current, bypassing setting up all those big mosfets to drive the solenoids.<br />I'll keep you posted.JohnInWIhttps://www.blogger.com/profile/13322982369574786579noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-38709725553689233222019-09-10T10:42:27.964-04:002019-09-10T10:42:27.964-04:00Of course, thank you.Of course, thank you.WAKhttps://www.blogger.com/profile/04866373490827292416noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-52185853887894382352019-09-10T10:36:09.189-04:002019-09-10T10:36:09.189-04:00Thanks for your interest. As far as throw on the s...Thanks for your interest. As far as throw on the solenoids goes, a half-inch seems to be plenty, especially given the fact that the larger pipes the larger the the plumbing and the holes in the bottom of the windchest. You may even be able to get by with a little less. That does lead on to a couple of other points though. That half-inch number supposes that that is a half-inch movement at the valve. Thus you need to add on any backlash that might be present in the wire or the connections at the solenoids and the valves. The initial setup for me was a little tricky. Having said that, though, once I had them set up they didn't require much more fiddling.<br />Yep, as for cheap and functional the saw blades worked well. Esthetics are another matter, and if I take it apart sometime I might dress them up with a grinder and some paint.<br />Yes, keen observation. That's exactly why the windchest cover is in two pieces. As I implied above, the last thing you want to have to do is disconnect all those wires to get to the inside of the windchest. The way I made it is I cut the pieces to size. Then I clamped them together. I took an appropriately sized drill bit and drilled holes for each wire right at the seam between the two pieces. Finally I took two pieces of felt and glued one to the edge of each half of the cover. Any leaks are inconsequential relative to the volume produced by the blower. I hope this helped. Let me know if you have any more questions, and if you decide to build one I would love to hear about it.WAKhttps://www.blogger.com/profile/04866373490827292416noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-49834951035221524492019-09-10T08:39:52.322-04:002019-09-10T08:39:52.322-04:00Well, I'm finding this a couple years late, bu...Well, I'm finding this a couple years late, but I love this project.I'm curious as to how long of "throw" the solenoids require? (the hack-saw blade springs are genius!)<br />Also, is the top of the windchest in 2 pieces so it can be removed without disturbing the actuating wires? How do you seal that?<br />JohnInWIhttps://www.blogger.com/profile/13322982369574786579noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-59488992087710087772019-05-12T12:24:13.191-04:002019-05-12T12:24:13.191-04:00Wow, happy to see this awesome post. I hope this t...Wow, happy to see this awesome post. I hope this think help any newbie for their awesome work. By the way thanks for share this awesomeness from <a title="DVJ Courses" href="https://skratchdj.in/music-production-course/" rel="nofollow">DVJ Courses</a><br />Furqan_fkhttps://www.blogger.com/profile/01330829356470395319noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-83114709855042616002019-05-12T06:28:34.472-04:002019-05-12T06:28:34.472-04:00I have bookmarked your website because this site c...I have bookmarked your website because this site contains valuable information in it. I am really happy with articles quality and presentation. Thanks a lot for keeping great stuff. I am very much thankful for this site. <a title="Music Production Courses" href="https://skratchdj.in/music-production-course/" rel="nofollow">Music Production Courses</a><br />khanhttps://www.blogger.com/profile/01346914418979736363noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-26666071275994486162019-02-13T16:52:38.042-05:002019-02-13T16:52:38.042-05:00Bravissimo 👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻Bravissimo 👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻Anonymoushttps://www.blogger.com/profile/14827787971942442546noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-28714687255513736782018-05-01T09:05:58.326-04:002018-05-01T09:05:58.326-04:00Have you actually checked the valves to make sure ...Have you actually checked the valves to make sure they require that much pressure to open? Also keep in mind the difference between pressure and volume of air. It may take significant pressure to open the valve but much less to keep it open. Therefore a restrictor placed near the valve might allow the pressure to build enough to open the valve but only allow a modest volume of air to actually flow. Also, how big are your pipes? That is, how much air do they actually need to speak? I wouldn't give up on the valve idea just yet. I would try some experiments. I assume that most if not all of your pipes are flue pipes, that is, they don't have reeds. Run some air through them and see how they sound. You'll know if you're over-driving them.WAKhttps://www.blogger.com/profile/04866373490827292416noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-35110623431849971782018-05-01T05:34:33.042-04:002018-05-01T05:34:33.042-04:00hmm - just seen the conversion calcs for water inc...hmm - just seen the conversion calcs for water inches to psi - so I guess 5psi is way too much for the pipes - guess goingto have to rethink this somewhat ..!!!<br />farmer glitchhttps://www.blogger.com/profile/08666689604784903864noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-42101943306104743632018-04-30T03:32:44.524-04:002018-04-30T03:32:44.524-04:00Hi ..
Yes want a mobile solution - perhaps the ta...Hi ..<br /><br />Yes want a mobile solution - perhaps the tank/compressor combo might be way too much - am indeed rather confused as to the whole pressure thing. The solenoids require probably 5 PSI to operate - not sure if this is going to be to much for a pipe ...am thinking it will at most be 4-5 notes polyphonic... still not rigged anything up to test as yet - but should manage it this week !!farmer glitchhttps://www.blogger.com/profile/08666689604784903864noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-11691570802238331732018-04-28T10:03:22.787-04:002018-04-28T10:03:22.787-04:00Refrigerator compressor and propane tank! Are you ...Refrigerator compressor and propane tank! Are you thinking to pressurize the tank and make the device portable? If not I think the compressor and tank might be more appropriate for an artillery piece than a bottle organ. Yes, please let me know how the valve works. Have you thought yet about how many bottles you might have "speaking" at the same time?WAKhttps://www.blogger.com/profile/04866373490827292416noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-20346645167816376952018-04-28T01:55:11.066-04:002018-04-28T01:55:11.066-04:00Tanks again .. going to try and experiment with a ...Tanks again .. going to try and experiment with a refrigerator compressor and old propane gas bottle combination - and see if that might supply enough air and for a long enough period ?? This is all very new to me so simply experimenting and leaning along the way . -Received on e solenoid valve - so going to try a test this week and see how quick it opens/closes .. Will let you know how it goes ..farmer glitchhttps://www.blogger.com/profile/08666689604784903864noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-81873778756741410492018-04-16T15:00:41.090-04:002018-04-16T15:00:41.090-04:00As far as a blower goes, I bought one on EBay that...As far as a blower goes, I bought one on EBay that had been used to cool a data-center and enclosed it in a box to suppress the noise. That 'air box' you mentioned is what the organ guys call a wind chest. It is useful in, among other things, 'cushioning' the airflow from pulses from the pump and the opening and closing of the valves to different pipes. <br /><br />In general this can be a complicated topic. Besides the blower you need a pressure regulator that can spill the extra air when you don't have much demand from the pipes but supply it when needed. Many organs use a bellows type mechanism. This arrangement has the advantage that it can, for short periods of time, supply more air than the blower can directly. This is useful so you have enough air for a temporary crescendo without having a blower large enough to supply that amount of air continuously. The required volume of air is really determined by how many pipes will be playing at once, and how large the pipes are. The blower I used supplies so much air that in practical terms the organ is never starved for air and thus I could simplify my regulator. Part 4 of the Music & Me blog shows the inside of my blower box, but an earlier version. Then I was using a shop vacuum but that was a fail. The motor required air-flow over it to keep from overheating. The data center blower that I mentioned earlier fit in the same box but is cooled by the air flow itself and thus does not overheat even in the closed box.<br /><br />I know this is lots of scattered information. I can give you as much detail as I possess on any of these topics. Just let me know how I can help.WAKhttps://www.blogger.com/profile/04866373490827292416noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-59514275332630383112018-04-16T12:26:58.105-04:002018-04-16T12:26:58.105-04:00Thanks for the reply (again) - really appreciate t...Thanks for the reply (again) - really appreciate this !!<br /><br />The valves I have need 3psi to close - not sure how responsive they might be - I have ordered one so will test it out - I am also not sure how best to supply the air - what pump are you using for your system ? Also wether I need to perhaps build an 'air box' to hold the air prior to the pipes - or wether I can simply run the directly from the pump ?? All a bit hazy at the moment - but fun project for sure !!!farmer glitchhttps://www.blogger.com/profile/08666689604784903864noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-56759284280466593292018-04-16T07:50:43.044-04:002018-04-16T07:50:43.044-04:00I can set up my new idea from this post. It gives ...I can set up my new idea from this post. It gives in depth information. Thanks for this valuable information for all,..<br /><a href="http://www.rabbitform.pl/szkolenia-druk-3d/" rel="nofollow">druk 3d szkolenie</a><br />atif xhaikhhttps://www.blogger.com/profile/02930570824595079707noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-86740461357511574572018-04-13T08:35:50.370-04:002018-04-13T08:35:50.370-04:00Stephen, that would greatly simplify things if you...Stephen, that would greatly simplify things if you could use those valves. I would offer-up a couple of thoughts. Given that you were smart enough to grab those pipes when they came available you have probably thought about this but you need to be thinking about what pressure to run the pipes at. The reason I say that is that in my experience some electro-mechanical valves require a forward pressure to actually open when they are triggered and you want to make certain that the pressure to open the valves is compatible with the pressure you will be using for the pipes. My organ runs at a pressure of about 5 inches of water but of course that depends on the size of the pipes, responsiveness you want, etc. Further, when you are testing your valves make sure that they will cycle quickly enough for the tempo of music you plan to play on your juke box. Finally, when you start to drive the valves electronically don't forget to add snubber (clamp) diodes to keep from frying the transistors.<br />Yes, please keep me up-to-date.WAKhttps://www.blogger.com/profile/04866373490827292416noreply@blogger.comtag:blogger.com,1999:blog-4193169306787079445.post-47511970447603070892018-04-13T04:32:38.767-04:002018-04-13T04:32:38.767-04:00Many thanks for the reply - I have bought one of t...Many thanks for the reply - I have bought one of these https://www.ebay.co.uk/itm/1-2-12V-Electric-Solenoid-Valve-For-Water-Air-Flow-N-C-Normally-Closed-Device/173242225788?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 to try and see if it works with air - and have them switched with a transistor similar to your setup .. Am trying to design a step-sequencer for my pipes in addition to a midi player ..... not sure those solenoid valves will be able to stay closed however ? Will let you know what happens !!<br />farmer glitchhttps://www.blogger.com/profile/08666689604784903864noreply@blogger.com