Have been working on building several Eggtimer kits. I bought into the Eggtimer ecosystem with a TRS Tracker, Proton, WiFi Switch, and LCD Receiver.
I've done surface mount before, but a component as delicate as the GPS unit was certainly a new skill. Cris was fantastic to work with, and walked me through a solder bridge I got _under_ the module.
I plan to purchase more Eggfinder kits in the future, and will be building out a full collection of several of these. You really can't beat the feature set you get with a few hundred bucks of electronics from Eggtimer.
I'm going for my L1 this weekend, and am flying a MAC Performance 4" Blackfly, with a Nosecone avbay. I'm not using any computer controlled charges for this flight, just motor charge. But I wanted a tracker, and to get some experience flying electronics and measuring flight data, before the outcome of the flight depends on their operation. I also have a JLCR on the parachute.
Decided to spend the time to draw up a custom sled and handheld enclosure for the system. The sled perfectly fits inside a MAC Performance 54mm Nosecone avbay, and seats an M6 Nut on the bottom. The nut slips in easily, and then the sled can be hand threaded into the bottom end cap of the avbay. I printed 3 or 4 revisions of the avbay, to trial and error the best dimensions for a quick battery change that also can be rock solid secure with a single cable tie. Cut the cable tie, rotate battery ~10 deg away from the sled, and it slides right out. With it cable tie in, there is zero movement, and the bottom of the battery tray is printed solid with 10 layers.
The electronics are mounted with brass heat inserts that match the hole patterns to the boards.
The receiver has a locking toggle switch, so it isn't accidentally switched off after the Tx and Rx are synced. The receiver handle screws off in one and a half rotations for easy access to a 2.2Ah LiPo battery in the handle.
If anyone would like the STL files, DM me! Maybe someone else could find these useful.
Note that these are not easy prints though - they involve very tall and thin supports, and some steep overhangs without supports. I printed them on a heavily modified Raise3D N2. But, if someone wants to try it on another printer, I'm happy to help and would love to see how it works out.
I've done surface mount before, but a component as delicate as the GPS unit was certainly a new skill. Cris was fantastic to work with, and walked me through a solder bridge I got _under_ the module.
I plan to purchase more Eggfinder kits in the future, and will be building out a full collection of several of these. You really can't beat the feature set you get with a few hundred bucks of electronics from Eggtimer.
I'm going for my L1 this weekend, and am flying a MAC Performance 4" Blackfly, with a Nosecone avbay. I'm not using any computer controlled charges for this flight, just motor charge. But I wanted a tracker, and to get some experience flying electronics and measuring flight data, before the outcome of the flight depends on their operation. I also have a JLCR on the parachute.
Decided to spend the time to draw up a custom sled and handheld enclosure for the system. The sled perfectly fits inside a MAC Performance 54mm Nosecone avbay, and seats an M6 Nut on the bottom. The nut slips in easily, and then the sled can be hand threaded into the bottom end cap of the avbay. I printed 3 or 4 revisions of the avbay, to trial and error the best dimensions for a quick battery change that also can be rock solid secure with a single cable tie. Cut the cable tie, rotate battery ~10 deg away from the sled, and it slides right out. With it cable tie in, there is zero movement, and the bottom of the battery tray is printed solid with 10 layers.
The electronics are mounted with brass heat inserts that match the hole patterns to the boards.
The receiver has a locking toggle switch, so it isn't accidentally switched off after the Tx and Rx are synced. The receiver handle screws off in one and a half rotations for easy access to a 2.2Ah LiPo battery in the handle.
If anyone would like the STL files, DM me! Maybe someone else could find these useful.
Note that these are not easy prints though - they involve very tall and thin supports, and some steep overhangs without supports. I printed them on a heavily modified Raise3D N2. But, if someone wants to try it on another printer, I'm happy to help and would love to see how it works out.
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