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14.3k
better components too
more mosfets, better quality mosfets, thicker copper etc
for not much more money
Yep unless u go stupid nice lol
https://cdn.discordapp.c…34258/image0.jpg
Always use a torque arm
https://cdn.discordapp.c…94592/image0.jpg
https://cdn.discordapp.c…87315/image0.jpg
The axles
https://cdn.discordapp.c…03936/image0.jpg
Now with torque arm (integrated)
https://cdn.discordapp.c…41820/image0.jpg
Loool
the motor literally chewed through the plastic on some wheels, on others it cracked
one of them magically survived
What material u using? Pla/abs/petg?
Petg might survive better.
Yeah high infill petg will be brick
it is petg
the ones that failed were before I changed my printers hotend so I think it was a temp issue
look at the one on the right, I printed that at high temp
can't see the layers
it all fused to one solid mass
nice drive mechanism
https://cdn.discordapp.c…41820/image0.jpg
End result
times 4
Next challenge . 3d printing some tpu wheels
I did print wheels before
30cm ruler for scale
I don't understand this. Where is banana
it will be doing its first grass cut soon
Hot! Toasty! Oven baked UPP cells ready for dinner!
Uh oh
I just knocked the cap off trying to remove the strip on the other side
Well uh either that or I just ripped off a portion of it. Sparks and some sizzle.
Well at least it's now disconnected from the main battery. What I don't understand is these stupid plastic brackets
Like, they have the little squares at the end of the battery. But the tabs only let it slide into the other from the cell's side. So it's basically impossible to remove without breaking off the little squares
GG
Looks like those cell holders were locked in when the spot-welding began. :/ Only way to get one off non-destructively would be to pull the entire sheet of them off the cells... which you can't do non-destructively.
u might be able to wiggle em loose, but ya, theres a good reason to avoid that type of holder XD
Anyone wanna give me 160 18650s?
lol
@2401PenitentTangent Uh, Trevanix might, soon. some disassembly required.
159 anyway.
😍😍😍
assuming there's no fire >_>
<_<
I never said the cells wouldn't be on fire.
I'm about to email UPP back and say I need 160 more cells
Sorry they're actually defective after I took a mallet to them
Do you think they would give me 160 cells for free?
@2401PenitentTangent Dunno, are you willing to buy a UPP battery and (fake) be(ing) in a horrible fire that disfigures you for life?
Lol I could show them my self harm and implant scars and claim they are from battery shards flying everywhere
@Trenavix please please please be very careful
removing the nickel strip is a much more delicate process than actually assembling the pack lol
very easy to accidentally short a cell
Yeah especially on the anode where it's not so flat and is held together by some elevated strips on the battery itself
I shorted a cell the other day idly checking if an 18650 really was 65mm tall with a callipers. I really have no idea what I was thinking.
Lol
If it makes you feel any better, I don't think you're the first person here who's done that. lol
an 18650 does make a nice hand warmer when shorted though
I went to grab my calliper to measure the total width of my battery without the packaging on it and holding it up i went "wait a second.. I'm stupid but not THIS stupid"
That would be 400 cells directly shorted lol.
Well, actually 399 at the time. Mr. 0v is still sitting in my kitchen
This is why I’m worried about you doing the battery repair lol
It's trev. He is the evolved version of naz. He will be fine... Probobly
@Trenavix Well, 20 cells, assuming 20S/20P pack
the whole end part with the double walls is both terminal cell groups üòÇ
Oh, joy üôÇ
so, you'd need some new calipers üòõ
and face.
I gotta get explode the remaining cells of my upp battery
22LR or axe?
axe is dangerous
that puts you in the blast radius
not if u make a drop rig
Then that’s what I’ll use
I’ll be sure to record it in 4k60 and 1080p240
Nah I suggest a Guillotine. Rig up a piece of 1/4in plate with a sharp point and sharpened to a knifes edge. Then make sure the area around the battery has gasoline and magnesium and titanium shaving. Drop and let the fun begin
Better idea: use the battery normally until it blows up naturally
I prefer the natural UPP explosion
The battery was a 14s8p but now it’s 10s8p. I’ll axe and brick the loose cells and just wrap the welded cells in alum foil
uh...
so 100% of it up in smoke?
That’s the plan
slow-mo recording encouraged
“I’ll be sure to record it in 4k60 and 1080p240”
@void loop ( ) I would short it, myself
cause then you get the cool shorting spark too
@void loop ( ) fully charge it first
More energy that way
Then preheat with a hot air gun
Get it nice and toasty
Rip it open, and short the whole thing before the BMS
Don’t have a hot air gun but I got a propane torch
I love how if it where someone else y’all wouldn’t be encouraging it but with me y’all are like “record slo mo” and giving suggestions on how to blow it up and I love that
lol
well we assume you at least have enough brains to realize its going to go badly, and to stand back.. and do it somewhere non combustable for 20'+
Rule 6 doesn’t apply to Tess and Naz