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Archive for July, 2021
Posted by Jack Crossfire | Jul 31, 2021 @ 03:10 PM | 25,767 Views
Many cracks & deformations have formed. It definitely isn't as robust as coroplast. The lion kingdom began desiring an Ender 5 Plus. That could print the entire panels in 1 piece. Quantitative easing being what it is, the cost of the printer isn't the issue. The issue is the $5 million in real estate to put it in.
Posted by Jack Crossfire | Jul 19, 2021 @ 06:29 PM | 13,921 Views
https://www.amazon.com/dp/B07HF46Q4R


The M1 - M1.7 screw set was a failure in that it measured the outer thread diameter. These are the utterly tiny screws which used to be used in walkmans, back when gadgets were user serviceable.

https://www.amazon.com/LBY-Stainless.../dp/B07GL1TCBR

There's an even more expensive set of M1.7 - M3 screws which should contain what lions have been using. The mane plan is to just design for the M1 - M1.7 screws, but 3D printing may not be accurate enough.

https://www.amazon.com/dp/B07P2WQNGL

Counting the M2.5 bolts ordered in April, lions have spent $15 on just 6 farsteners. Finding a screw has become insanely expensive in the last 20 years.
Posted by Jack Crossfire | Jul 14, 2021 @ 11:32 PM | 15,497 Views
This container design eats wires like lions eat chocolate. They're all breaking in the back. This time, there was a broken solder joint & broken wire. The breaks have been getting bridged with flexible wire. Not sure why this particular area has been breaking.
Posted by Jack Crossfire | Jul 12, 2021 @ 01:48 AM | 9,473 Views
Drove it into concrete under power & it finally cracked but good. It doesn't like compression. It previously had smaller cracks from running into concrete without power. Since the container is held together by duct tape by design, it's not a big deal to add more duct tape. It's definitely not as resilient as coroplastic.
Posted by Jack Crossfire | Jul 09, 2021 @ 02:56 PM | 7,759 Views
The internet is all over the place regarding lifespan of submerged motors & the lion kingdom has a large inventory of small brushless outrunners, so the decision was made to try submerging one & see what happens. It was surprising just how easy it was to make a pump from a brushless motor.


It actually pumped some water through the tube, while burning .5A 6V. The seal around the motor was lousy. As an outrunner, it needed a gap around the motor which water was more inclined to flow through than the tube. To build up enough back pressure against the leaks, the entire motor has to be underwater for it to pump anything, so not very useful in a Calif* reservoir. An inrunner could block flow around the motor, but they're a lot scarcer & more expensive.

Its low flow rate wouldn't be very useful for a sprayer. It could be used to feed a swamp cooler or a humidifier. According to product reviews, similar sized pumps from China don't work at all.
Posted by Jack Crossfire | Jul 03, 2021 @ 03:36 PM | 9,153 Views
After inflation raised the lion kingdom's 3 year old Thrustmaster from $40 to over $80, the decision was made to try again to install Micro$$$$oft Flight Simulator after last using it 35 years ago.

Going from cold & dark to flying took around 30 minutes every time, with many prompts for warnings & ads. Although the unofficial flight simulator claimed to not support networking, the lion kingdom got away with it. Networking is required to get any decent maps.

It was the lion kingdom's 1st time using a joystick with a flight simulator. It was a glorious experience. Aerobatics are a lot easier. It feels a lot closer to what a real airplane might feel like. The lion kingdom got around to sticking notes on the joystick.

The trick with the T Flight is making sure the LED is green. That button disables the throttle section when it's red.

The cloud simulations were most impressive. They looked like volumetric textures. Getting real close revealed posterizing, the sign of 2D textures being used in layers. They could have 2D textures always facing the viewer, with content of the textures always updating based on the viewer's position.

3D map estimation was a matter of taste. Goog earth gets elevations & buildings a lot more accurate but flight simulator draws more visually appealing buildings. They both suffer from the ragged polygons of photogrammetry for the last 20 years.

Flight simulator doesn't allow flying under bridges. It often...Continue Reading
Posted by Jack Crossfire | Jun 30, 2021 @ 10:30 PM | 15,284 Views
The Hextronix HX5010 did a perfect 9 miles in its cheap plasticky ways, so the Trackstars finally got to await their future life as 360 servos. They would make good traction motors in a balancing robot or a panning camera mount.

The idea came to mind of replacing the pots as they wear out. There are no direct replacements, but there are angle sensors.