The Great 2020 Quarantine Build-Off?
- Thread starter Hoomi
- Start date
perhapsleiana
Elite member
The best pilot figure is 4 pilot figures!
Crawford Bros. Aeroplanes
Legendary member
Kowalski!! We need more RPMs!!
Hoomi
Master member
Thinking back to the movies, that might not bode well for the airplane...
perhapsleiana
Elite member
Got my plotter working decently well. Still needs a dedicated power supply for the stepper motors, and another for the servo, as it averages about 5-10 errors per hour, and it only moves at a maximum of about 15mm/second (jobs range from 3 minutes to 3 hours). Its repeatability and precision are ridiculous for a string plotter, though- precise to who-knows-what and can return to a previous point within 0.2mm every time, assuming it didn't go outside the reliable area. I'm currently running it at about a 23" distance between the belt anchors, which I hard-coded into the firmware to speed up calibration, but when I upgrade to a fully portable device, that distance can be up to 10 feet. In the firmware are several error-correction snippets, such as rejecting any value read over 10,000mm, rejecting near-zero X and Y values, as these often indicate a badly read data point, and several other little functional sacrifices.
Here's Dogmeat from Fallout 4.
Now I'm gonna go do some dimensional accuracy tuning while I wait on limiting resistors that will allow me to run the steppers off of 12v.
Here's Dogmeat from Fallout 4.
Now I'm gonna go do some dimensional accuracy tuning while I wait on limiting resistors that will allow me to run the steppers off of 12v.
Wildthing
Legendary member
Need a video of it in action
perhapsleiana
Elite member
I thought about posting a video, but it's just so painfully slow, and it will be until I upgrade the stepper power supply.
Good news is, I tested it with a 3"x4"x5" right triangle. 3" on the X axis plotted very accurately. 4" on the Y axis plotted perfectly as well. and 5" to check for skew was perfect. Lines were square and straight when compared with a ruler, so I think dimensional accuracy is on point!
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Michael9865
Elite member
This little plane is so much fun. With the 2204 2300kv on it and now I barely have to go above half throttle. Still wasn’t able to get proof of flight pictures or video yet.
perhapsleiana
Elite member
I'm recording a 15 minute time-lapse as I write this. I know it's 15 minutes because the last attempt didn't save the video.
Crawford Bros. Aeroplanes
Legendary member
That's always the worst
perhapsleiana
Elite member
You asked for video, you got it! It's a time-lapse though, but I did include a real-time display just so you know how awfully slow this is.
Crawford Bros. Aeroplanes
Legendary member
Finally got around to working on the Wilga, it's a biggun. I'm going to use poster board on this one.
The Fopster
Master member
Got back to my Cessna 195. Elevator now sorted so I can get the tail end finished. Skin is not perfect but it should look ok in the air from a distance!
Wildthing
Legendary member
Pretty slick
Crawford Bros. Aeroplanes
Legendary member
How do I do a turtledeck on this?! There's nothing to attach to! Maybe I should do it FT Commuter style?
Crawford Bros. Aeroplanes
Legendary member
Nevermind, I figured it out. I used a bit of CA to make sure nothing lets go in the heat.
The Fopster
Master member
"Master Series" style Cessna 195 starting to come together. Should get the wings skinned tomorrow.
FL_Engineer
Elite member
Clean build, ironed edges are a nice touch.
The Fopster
Master member
Thanks! It's not as clean as I'd hoped but I got impatient. I'm going to cover the blemishes with a bright paint job - maybe even bright red as it's unusual on a plane like this? Inspiration photo is this:
