Thanks everybody. A prototype batch of 20 29mm Blue Ravens is submitted and is scheduled to ship to me around July 5. I'm getting married on the 9th, so I may not get time to test it until the week of the 17th.
Congratulations!Thanks everybody. A prototype batch of 20 29mm Blue Ravens is submitted and is scheduled to ship to me around July 5. I'm getting married on the 9th, so I may not get time to test it until the week of the 17th.
Ha!Honeymoon at LDRS?
I'll buy one as soon as it's available.Thanks everybody. A prototype batch of 20 29mm Blue Ravens is submitted and is scheduled to ship to me around July 5. I'm getting married on the 9th, so I may not get time to test it until the week of the 17th.
Thanks everybody. A prototype batch of 20 29mm Blue Ravens is submitted and is scheduled to ship to me around July 5. I'm getting married on the 9th, so I may not get time to test it until the week of the 17th.
Congratulations Adrian and best wishes to your bride to be !Thanks everybody. A prototype batch of 20 29mm Blue Ravens is submitted and is scheduled to ship to me around July 5. I'm getting married on the 9th, so I may not get time to test it until the week of the 17th.
Adrian --
The 29mm Blue Raven is beautiful !
So ... I imagine you'll be selling a "Featherweight 29mm av-bay harness attachment upgrade kit" to seal the ends of my AV-Bay and to connect my Shock Cords
Like this: Featherweight 38mm av-bay harness attachment upgrade kit but to fit the ends of a 29mm coupler with three threaded rods, instead of four ...
I will want one when they're available.
Or ...
Would it be OK to use the Active and Passive Ends of the existing 29mm AV-Bay with the new 29mm Blue Raven ?
Won't I at least need a second passive bulkhead ?
I'm glad you like it!p.s. the 38mm av-bay harness attachment upgrade kit is wonderful !
I am building a 38mm Min Diameter Model Rocket around it now !!
Yeah, I'm not sure what the problem was. The third unit was fine, so that points the finger toward the assembly rather than the part. Not sure why these are having issues when this part that hasn't been a problem for the hundreds of regular Blue Ravens so far. Replacing one or two of these parts by hand is o.k. with a microscope and a hot-air rework station. I tin the pads on both sides with a fine-tipped soldering iron and then use the hot air tool to float it into place.Those fine-pitch parts are a pain, huh? It's got me looking at pick-and-place machines... I'm not sure I can mount an SSOP reliably (0.65mm pitch), although I think I've got the knack of the ADXL375's (0.8mm)... but I gave up on the 0.5mm ADXL372's.
There is a technique where you set the iron to the correct temperature, flux all the pins, and with a tip that has a hollow to hold some solder you just start at one end and move he iron along at about a 45deg angle. As you move along the solder flows to the joint, and as you move past it the excess solder goes back to the tip. You do need to "bump" solder a couple of corner pins to hold the package in place before soldering a side like this. This works a treat for the 0.5mm-pitch parts.Those fine-pitch parts are a pain, huh? It's got me looking at pick-and-place machines... I'm not sure I can mount an SSOP reliably (0.65mm pitch), although I think I've got the knack of the ADXL375's (0.8mm)... but I gave up on the 0.5mm ADXL372's.
Good luck to you and best wishes to your new wife, Adrian !<<<snip>>> ... I'm getting married on the 9th ... <<<snip>>>
View attachment 590099It fits! Next is to figure out if it works...
(That’s a Blue Raven inside a 29mm coupler inside a 29mm airframe)
Testing is going pretty well. I had a successful 120G flight in a 29mm test rocket, and tomorrow I'm going to shoot for the J record on a new 38mm rocket, with two of these and a Featherweight GPS tracker for the electronics, inside a 29mm airframe tube that's underneath my chute cannon. That flight is expected to pull 100 Gs, sending the rocket 0 to Mach 2.8 in 1.0 seconds.Adrian --
How is testing going on this little beauty ?
I've been thinking about the threaded rod electrical connections and my existing AltAcc AV-Bays a bit.
Say I've got an existing AV-Bay with a sled at least 1-inch wide.
Q1: Would I not be able to lay the 29mm Blue Raven flat on the sled, connect a battery fastened under the sled via a 1.25mm JST 'extension cord' and then connect Ground, Apogee and Main to the sled via brass screws with short stand-offs to the three existing threaded rod connections ?
If so, the three brass screws could be wired to a pair of screw terminal blocks with a shared ground.
But I believe I would like to try to align one axis of the accelerometer and gyro with the vertical axis of the sled.
Q2: Which way should I try align the mounting holes for the 29mm Blue Raven on the sled ?
Thanks !
-- kjh
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