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#projects

9 posts8 participants0 posts today
AI6YR Ben

Okay, in my tradition of doing things the hard way, fixing my "don't have decent sewing shears" by buying a dull used set of Gingher shears off eBay, and going to sharpen them here. (In the meantime, I scrounged around the house and successfully sharpened 7 different pair of kid-sized scissors to razor sharpness capable of cutting fabric and/or fending off an invasion of miniature pirates with cutlasses, using a sharpening steel and an extremely fine whetstone, so pretty sure I can sharpen this....)

#random#projects#DIY
C.

I'm looking for #opinions from #electronics #hobbyists or professionals.

When I'm using a #solderless #breadboard to prototype circuits, resistors can be frustrating. If you just keep re-using the same well-worn ones that look like a pretzel, you have to leave the leads long for the unknown next place you want to use them, and you can accidentally short something else against the leads.

Over the years I've frequently thought "Someone must make #jumper wires with inline resistors so they're easy to reuse", but I've never seen them for sale. [1]

So I made a bunch. And wow, it's labour-intensive to make them well. That explains why no-one's selling them.

Would other people be interested in buying and using these? Anyone can make them, but a lot of people would rather use their limited #hobby time to make their projects, not make things they need to make their #projects.

I've reduced the amount of time to make them and will keep trying, but I would have to charge at least US $30 for a pack of ten. There are ways to reduce it further, but they require a significant investment in equipment, so I'd have to be selling quite a few.

I make them with good materials - silicone 26AWG #wire for flexibility, name-brand 1% metal film #resistors, total length 24cm.

Would anyone want these?

[1] Closest thing I've found is dfrobot.com/product-1438.html but they're rigid so you need to use an additional wire anyway if you're not connecting exactly that distance through clear space.

#DIY
Continued thread
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AI6YR Ben

So the questions now (aside from the "how do I keep the battery from catching fire" 🤪 )

1. How to convert this to a Class I e-bike
2. What battery technology to switch it to, and what is the hub capable of (with focus on SAFE battery tech -- I assume LiFePO4 is the right choice here now)
3. What e-bike controller would work best (vs. whatever is hacked into here now, which is "turns on when pedaled")

(The purpose of this foolish exercise, for me, is simply to learn about the technology... I am quite happy pedaling uphill with my normal bikes right now!)

#ebike#BikeTooter#DIY
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AI6YR Ben

Aha, found the scavenged treadmill motor. Now, to figure out how to mount this. I wonder if it's better to have the treadle belt over the flywheel (like a sewing machine, big diameter) instead of where the serpentine belt used to go.... probably will have to drill some belt holes to hold everything together to the wood top. #projects #humanpower #solarpunk

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