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the new $20 harbor freight trash they are using in those videos is like I posted lol |
ofc it seems easy to just use the drill itself but meh... lowers the quality (if any) a lot |
Both of those are brushed btw |
green thingy points to communicator on motor |
oh... cannot tell where the brushes in the first one |
I think they are part of that white thingy |
they appear to be at.. 90 degrees to each other? okkkk.. |
Anyway, you basically need a lathe or some real DIY skills to be able to reproduce a housing when its those 'motor doesn't even have its own brush mount/bearing mount' style |
you could slice up the drill housing to remove the handle/trigger |
but that is bascially it lol |
since already the plastic housing is gona be rather 'compact' |
If you chop the handle off, there is not much 'non motor' here besides the chuck |
(and you prob want the RPM reduction from the gears) |
that would work I guess |
I mean I don't see it that hard to put the motor in a custom enclosure but I guess it works for the video |
I mean I doubt the purpose of the vid is other than just showing "hey, it's possible" |
if you where gonna make a custom enclosure, you'd prob have the skills to go "hey wait, this is stupid when I could just get a motor with an actual mounting system like, bolt holes, or a mounting plate" |
"or is actually round so I can make some nice clamping system" |
nah that's consumerism |
:AnimeSmile: |
So what would be the best repurposed motor for a bike ? I've heard of car alternators |
plus the problem with making a housing for some rando drill is... part fails, now what? |
you prob gotta throw it out and make a new housing for some other drill. |
Best meaning a good speed and tourwue |
might as well just spend 3 minutes making this: |
and just going 'fuck it' |
then if it fails and you gotta toss it out to mount a new drill, no big loss |
that's fair |
I remember trying to make a chainsaw motor for my bike and the sprocket came flying off like a shuriken |
The sprocket of the chainsaw |
@Grey Earths I mean, you 'could' do everything some super fancy way, but then your just making tools to make tools to make tools without ever getting anything actually done üòõ |
(been there done that) |
Hey , that's how we got this far !!! |
Tools to make tools to make tools! |
No, tools to make tools to make things. Once your making tools to make tools to make tools your just masterbating. |
Tools to make tools to make things , that sounds better |
I just realized something |
I might just be a wanker but |
Can't everything in existence be considered a tool in one way or another |
Such as a bike , a cardboard box |
And can't all tools be considered things ? |
A toy even, a tool to stimulate mind |
No need to get into this is not a philosophical page lol |
https://tenor.com/view/toradora-taiga-aisaka-ryuuji-takasu-taiga-ryuuji-gif-25835884 |
low torque imo |
maybe a washing machine motor? |
Car alternators are designed to operate around 10,000RPM from what I can tell, lol |
no nvm, chatGPT says washing machines have even lower torque than alternators |
So meaning it will be extremely powerful |
I think I seen an example online |
@Grey Earths Direct drive washing machine. prob. |
yes thats a hand on the left |
Problem is of course, lack of enclosure means the magnets are going to suck up every bit of magnetic road dust kicked up by your tires |
If unsealed, air ventilated e-bike motors could sanely exist (ie, survive for 10% of the lifetime of the more expensive alternative), china would already be selling them for $100 less then the sealed ones. |
That thing looks huge tho |
The fact china isn't already trying to rip people off by selling them on aliexpress just shows what a horrible idea it is. |
chu tellin me you can ride while picking-up coins from street that pay for the energy to recharge?????? |
/s if not obvious |
man this chatGPT is amazing |
goes nuts with anything you ask it to calculate |
much better than my school teachers back in that time |
dudes were like "you have a book, read the book" |
chatGPT goes like "I AM the book" |
Make sure u double check its work. It's good but not infallable |
Yeah, ChatGPT is great, but it's also great at being wrong in full unrestrained confidence. lol |
Often I'll ask it something complicated, get a response that looks good, and find that the response is actually total nonsense when I go to implement it in my work. |
Like if I ask it to write Home Assistant automation code, it'll *look* correct, but it'll often just invent a function that does the thing I asked for, instead of going through the real steps required to do the thing I asked for. |
maybe it has a better and updated home assistant SDK that does the thing exactly the way chatGPT says it works |
:think: |
wouldn't you think bots, SDKs and AIs aren't cousins |
I'm gonna try in a few minutes with some crazy stuff based on kerbal space program videogame |
just to see how crazy it goes with orbits |
oops, just realized this ain't general, my apologize |
AI is creepy |
Except thats wrong lol |
So its just like, oh you need 49.5nm... Well here is 197.7nm! ENJOY |
Also, how is it calculating required nm if it doesn't have aerodynamics or rolling friction? |
"should be sufficient to move 200lb" is the key |
Not really. |
It still gave you a number that it 'reasoned' would meet the requirement, then made calculations to create 4x that. |
Like.. What? |
is it calculating the force to move at 25km/h.. straight up? |
?sim |
https://www.ebikes.ca/tools/simulator.html |
https://ebikes.ca/tools/simulator.html?throt=58&hp=0 says 8.3nm for 220lbs at 24.5kph |
So not only did it get it wrong.. |
it got it wrong by an order of magnitude |
Granted, that 8.3nm is steady-state, so you'd want more for reasonable acceleration to that cruising speed. The initially quoted 49.5nm is totally reasonable for an okay-spec ebike. |
But then it moves on to trying to create 200nm, which is motorcycle territory I'm fairly sure. |
Its not 'straight up' either, since you require 68nm to lift 220lbs up a 20 percent incline at just 15km/h |
https://ebikes.ca/tools/simulator.html?throt=100&hp=0&grade=20&batt=B5213_GA&cont=C40 |
But it was not asking what a 'reasonable amount of torque' to reach that was, it didn't ever in that math 'derate for reasonableness' |
it just came up with some bullshit math that to someone who isn't looking or has a clue would 'accept' |
Oh right, I forgot about that. |
The question asked of it specifically cited 15nm as the desired output torque. |
Seriously |
Look at this |
200lbs.. divided by.. gravity? |
what |
why... on earth.. would you ever divide a mass by gravity? |
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