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better components too |
more mosfets, better quality mosfets, thicker copper etc |
for not much more money |
Yep unless u go stupid nice lol |
Always use a torque arm |
The axles |
Now with torque arm (integrated) |
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 |
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. |
üòçüòçüòç |
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 |
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