Author Topic: Crumbling axles and recycling (Recycling parts not given away soon)  (Read 502 times)

Offline Callistemon

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Update: I have received the boxes and will recycle the broken parts anytime now. The list of broken pieces can be found below as it has been for weeks. Take it or leave it, I am charging nothing.

I have a K’nex hand crank fan that uses a modified version of the model drill attached to a propeller with four yellow curved panels. Every 8 to 11 days, the yellow axle (before axis conversion) spontaneously falls apart and the area crumbles up. The yellow rod always breaks as it passes through the hole in the yellow connector. There was also a time where the red rod (after axis conversion, yellow in the original model drill) suddenly broke right where it passes through another connector, allowing the propeller to fall off.

Failure Dates
April 25 - Yellow
June 2 - Red
June 3 - Yellow (8 days)
June 12 - Yellow (9 days)
June 23 - Yellow (11 days)

Part suggestions: An extra-rigid yellow rod would help. Carbon fiber may also be a good resource for strengthening the rods, although it is currently not used.

A few of the curved panels have deformed tips and the connection is so floppy that they easily fall off. At the time of the most recent axle failure, there were only two blades on the fan since the other two were previously ejected and were not reinstalled. In addition, during the time of having two blades, there were two incidents where one blade fell off while spinning, which instantly made the propeller so imbalanced with just one blade that the entire red axle and the blue gear exploded off at 43 MPH.

I have an entire cup full of more than 60 broken parts, weighing more than 6.5 ounces according to quantity and K’nex User Group’s weight for each part. These parts are 2 to 8 years old. I need to know how to recycle these parts, unless someone wants some of the broken connectors. I don’t know what to do with the curved panels, as it seems wasteful to have the entire panel recycled just because of the tips, especially since they are discontinued.

K’nex responded after 13 days and said that the plastic is recyclable but they do not offer recycling services. All recycling centers near me are closed until further notice. Even when they were open, they were remarkably shoddy, lousy, and incompetent. The local recycling centers didn’t accept most things. One in particular charged fees for scrap metal, and there are rumors that even some of the well marked plastics were being sent to the landfill. They probably burned their e-waste.

If K’nex can’t even recycle their own plastic, they must not be using any recycled material. And they don’t accept broken parts for recycling. It’s not landfill-free to not use recycled material or accept broken pieces for recycling. I don’t know what to do. If anyone is interested in broken connectors, I will post an incomplete (as more are always being found) inventory of the quantity and weight of each type of part.
« Last Edit: July 25, 2020, 01:50:36 am by Callistemon »

Offline Callistemon

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Re: Crumbling axles and recycling
« Reply #1 on: June 27, 2020, 07:21:29 am »
So yesterday, I replaced that yellow axle with the extra-rigid version of the red rod. I tried that before with the regular red rod, but it bended too much when being cranked. This time, however, it is the rigid rod, and some of the extra length is compensated for by spacers.

Now that it is extra-rigid, it will probably last longer, and since there are now 4 orange connectors for the handle, the handle won’t detach anymore.

On June 24, a day before I installed the new apricot axle, I eliminated the tip-connection bearing and replaced it with an orange connector crossing the axle beside the blue gear, and now the tip of the second axle has a black cap. I replaced the blue clips on the handle with caps, and tried doing the sane on the left end of the then-yellow axle, but a cap there is quickly detached by the spinning. Fluorescent orange flexible arches were also added to increase visibility and appearance.

Offline Callistemon

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Re: Crumbling axles and recycling
« Reply #2 on: June 30, 2020, 10:04:30 pm »
After K'nex took 13 days just to tell me they did not offer recycling, I contacted The Rodon Group (manufacturer) yesterday. After just 1 day, they have responded 4 times and have agreed to recycle the parts. They say I can just mail the parts to their facility. Much better. If they were to not want the plastic for recycling, who would they expect would? Also this morning, K'nex responded again saying they do not offer recycling and to use a nearby recycling center. Pathetic, because I already told them the centers were closed and how shoddy they were when open. I said that it's not zero-waste to want people to recycle uncommon plastic where common plastic is landfilled. I also told them that I would not throw the pieces into the vacant parking lot of the closed recycling centers! Duh!

Anyways, if you want me to send you some of the broken parts instead of having the manufacturing facility recycle them, please email redcallistemon@pm.me and include your address, part types, and quantity of each. I will recycle the parts in 3 to 7 days.

Yellow Connectors: 19 (47.405 grams)
White Connectors: 8 (28.56 grams)
Gray 3D Connectors (one purple): 13 (26.04 grams)
Blue 3D Connectors: 5 (16.3 grams)
Orange Connectors: 3 (4.23 grams)
Green Connectors: 3 (6.228 grams)
Red Connectors: 2 (3.352 grams)
Light Gray Connectors: 1 (1.26 grams)
Gray Rods: 11.6 (51.968 grams)
Red Rods (one apricot): 5 (15.2 grams)
Yellow Rods: 7.5 (13 grams)
Blue Rods: 1 (1.314 grams)
Small Green Square Panels: 1 (7.56 grams)
Micro Purple Rods: 3 (2.4 grams)
Micro Orange Rods: 4 (6.928 grams)
Micro Red Rods: 0.33 (0.18 grams)
Red Ball with Broken Prongs: 1 (24.12 grams)

Total: 88 (256.045 grams, 9.0317 ounces)
16 ounces = 1 pound

The weight estimates are based on quantity and K’nex User Group’s weight per piece. I have purchased about 11,401 pieces of K'nex in the past 8 years, so only 0.77% of the pieces have failed, with an annual failure rate of about 0.19% (by comparison, ultra-reliable helium HDDs have a 0.35% annual failure rate).

Anything underlined is updated.
« Last Edit: July 25, 2020, 02:27:18 am by Callistemon »