Nice units, sorry to hear the troubles you've been having, personally, I'd go away from air, I have been using "Actuonix" linear actuators for some of my builds and they are great, look into them. You might be impressed. I used one for a main gear door, mixed with a curve, and over riden by another channel as it works as air brake aswell. Lowers fully, gear down, door half closes. Totally variable, as a normal servo is. I'm now playing as using them to push a long small cylinder into a larger, shorter cylinder to work as a force multiplier, small electric servoless hydraulic system for main gear actuation. Scale size rams. With close to 300psi at the gear end, same principle as a brake lever on a motorcycle. Or car bottle Jack, So far so good, and very lightweight. Using carbon tubes, alloy for the spares, and very light oil, using water and glycol at the moment through standard airline Just and idea
Why can't Robart get the geometry right? seems stupid to have it bind and need to loosen the mounting bolts... that's screwed up.. glad I did not get them.. I've currently got about 800 dls of defective struts that I need to return..
I'd replace the air system and that FINIKEY VALVE with an electric motor or even a SERVO and be done with the major problems forever. JMHO. Or just replace the Chains and Large SPROKETS with servos attached to the Pivot arms. Of course it ain't scale but you don't see the mechanisms anyway.
Very good teaching aid. I like your ingenuity. Thanks for sharing.
SUPER !!! Explains alot !!! (one of my favorite WW2 planes, the F4F; several Marine Corps aces flew it)
Nice units, sorry to hear the troubles you've been having, personally, I'd go away from air, I have been using "Actuonix" linear actuators for some of my builds and they are great, look into them. You might be impressed. I used one for a main gear door, mixed with a curve, and over riden by another channel as it works as air brake aswell. Lowers fully, gear down, door half closes. Totally variable, as a normal servo is. I'm now playing as using them to push a long small cylinder into a larger, shorter cylinder to work as a force multiplier, small electric servoless hydraulic system for main gear actuation. Scale size rams. With close to 300psi at the gear end, same principle as a brake lever on a motorcycle. Or car bottle Jack, So far so good, and very lightweight. Using carbon tubes, alloy for the spares, and very light oil, using water and glycol at the moment through standard airline Just and idea
Hi Russ, this is actually my fathers. I'll forward the info. Here is the latest update. Thanks for watching. ua-cam.com/video/3dPWVu_dkKI/v-deo.html
Adoro esse universo, o sistema de acionamento circular e retilíneo, é fantástico o que se consegue fazer!
Abraço aqui do Brasil 🇧🇷
Wow! Thanks for the demo!
Why can't Robart get the geometry right? seems stupid to have it bind and need to loosen the mounting bolts... that's screwed up.. glad I did not get them.. I've currently got about 800 dls of defective struts that I need to return..
The fact that you had to loosen the mounts is very telling that the geometry is simply off a little bit as manufactured.
amazing, congratulations!!!
Nice.. now i can see those and how they work.
excellent job , do have any CAD for this design
No we do not. Thanks for watching. This is the latest update. ua-cam.com/video/3dPWVu_dkKI/v-deo.html
Very nice...
Thanks for watching. Here's the new version.
ua-cam.com/video/3dPWVu_dkKI/v-deo.html
Yours work a whole lot quicker than the original hand-cranked ones.
Cool
How much cost of this project?
You might already know but hitec sells linear servos there much better that pneumatic
Have you got your Wildcat flying?
darrenb763 not yet, I’ve been side tracked with other projects. One of which is the bigger Fischer Wildcat. I hope to soon!
@@ryanschurman if you need a canopy or a cowl let me know, I will be getting the fiberglass fuselage molds done and ready to sell fuselages soon.
@Current Batches this entire gear has been revised again. I'll be posting another video soon. Direct drive and electric.
Ryan,would you be interested in selling the landing gear?
Hi, this is my fathers and will be installed in the airplane soon. Here is the latest update. ua-cam.com/video/3dPWVu_dkKI/v-deo.html
I'd replace the air system and that FINIKEY VALVE with an electric motor or even a SERVO and be done with the major problems forever. JMHO. Or just replace the Chains and Large SPROKETS with servos attached to the Pivot arms. Of course it ain't scale but you don't see the mechanisms anyway.
Thanks for watching this is the new version. ua-cam.com/video/3dPWVu_dkKI/v-deo.html
WOW, T/Y !
What, loosen up fastener. Believe it or not the real ones are the same.
Definitely a better way to do it and this isn't it.
ua-cam.com/video/3dPWVu_dkKI/v-deo.html