Show us what you are working on..

[Wayne]

We have a nice little unit that is electronic for the battery welding. Can adjust about everything on it, but for the most part once dialed in you don't mess with it much.

 

[Tahoed]

Moving along on the Voyager project The red and solid white is Oracal 751. Really easy to cover with. I might even try a wrap on the fuselage.

 

[jure]

another project : to convert the alternator from a Corvette , ( 12 V , 145 A ) , to an inrunner motor .
The rotor armature coil is driven via the slip rings . ( no permanent magnets installed in the rotor )
An adjustable DC power supply drives the armature ( field ) coil .
A standard brushless ESC and servo tester are used to control the motor speed.
The original stator is wound as three phase Delta, bifiliar. The diodes and regulator were removed.

The longer term vision is to use it for a sailplane winch , or perhaps a kart.

during the no load test , these measurements were taken
Motor voltage V = 12.04 V
Motor current I = 4.33 A
Armature Voltage Vf = 1.7 V
Armature current If = 0.68 A
Motor speed = 2910 RPM
The armature current shown is reduced in order to increase the motor's Kv,
it starts at 2.5 A to get maximum torque, and then it is reduced to increase speed.

So, effectively there are two ways to control motor speed:
1) Armature current : controlling Kv
2) Stator RMS Voltage ( and current ) : using the ESC


alternator specs

 

[RafaelAvila]

Keychain with NFC tag Installed inside

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[bubbasks]

Just finished my Baja Hobby XXL Shark, now time to take advantage of the days off and knock out my BVM T33. Another day or two and she will be done.

 

[Tahoed]

Decided to try ang wrap the fuselage. Came out pretty good and was a lot faster than paint.

 

[Tahoed]

I can almost see the finish line from here.

 

[G-man]

Not much flying weather here in the Northeast this month.
To finish out the building season, I've re-started work on the AIR CHIEF project

 

[Jarron]

Been having fun with this cool hydrofoil R/C boat lately, hey it technically flies

 

[Wayne]

You got her working a lot better than when she was stock.

 

[rcsoar4fun]

Been an interesting couple of months of sick family and being ripped off by fellow glider guider. Ended up with a Sig 4-Star 120 to use as a towplane. Upon removing the covering I discovered a spar that was just butt spliced. Actually 3 spars were butt spliced. Close enough I suppose.

However, since it was in situ, couldn't really pull it out to splice it. Printed a little jig to allow me to cut a scarf into each good piece and epoxy in a replacement in the middle. Gooder than new. Uploaded the STL if someone wants to print it.

 

[Wayne]

Great use of 3D printing! Well done.

 

[Hank GB Z]

I finished my Aloft Mini Wanderer. I'll post more in the Wanderer thread but i thought i'd post this pic here too.

Thanks,

Hank

 

[bubbasks]

Maiden +1 complete

 

[Wayne]

Bubba - Very nice! Congrats on the first flights. Looks like you already are pretty comfortable with her, always a good sign! I would be very nervous to fly such a beast.

 

[bubbasks]

Bubba - Very nice! Congrats on the first flights. Looks like you already are pretty comfortable with her, always a good sign! I would be very nervous to fly such a beast.

Yeah luckily i have the 1.7m version with about 150 flights so this felt at home once trimmed. Smootther and easier to see than the 1.7 so very happy with it and how it came out.

 

[Doc J]

2.75M. Best of both worlds, Bubba?


Doc.

 

[G-man]

Finally warm enough in the Northeast to spend some time outside today.
First flight of the OCEAN BREEZE fuselage fitted with SATELLITE-1000 wing.
I'm here to tell you that 50-year old wing is still delivering very fine flight performance.

 

[Yotaman1985]

Just about done with my Z1 build. Decided to make it a two piece wing and added a wing spar along with a hard mounted plug so when it assembles, the two wings automatically plug together. Wasnt sure if it would feel strong enough but its really solid and I will be adding two more smaller alignment spars to keep it all strait.

 

[Yotaman1985]

Rebuilt Micro Max maiden went well Really love this little plane