Corner chomped 30mm nickel… Works like a charm
5 Likes
IMO, no sharp points is a good rule for new builders because sharp points can cause unintended damage if not properly considered. That said, a well designed pack can be assembled in such a way that sharp points cannot cause harm or damage.
In the above pack it looks like all sharp edges are long enough that they cant get under the insulator, even when the pack is folded up.
I have seen this before on other topics (such as the use of insulator rings) but IMO sometimes we need to consider the difference between whats recommended for a beginner and what can be done by a professional that knows what they are doing. A professional builder is much more likely to have considered the consequences of their actions and how they affect overall pack safety.
give me a week or 2 and i will satisfy your hunger.
7 Likes
Come on man it’s 2020!
Ha but the smaller corner works pretty well for cell tops and the larger works well for the corners of fishpaper if capping the ends.
It makes the most dangerous of little shavings though lol
We R Memory Keepers We R Memory 1/4 & 1/2" Crop-A-Dile Corner Chomper, 0.25"/0.5", Aqua https://www.amazon.com/dp/B0024M5GH4/ref=cm_sw_r_cp_api_i_mS1DFb6R6T9F6
1 Like
don’t remind me! i’ve suffered enough. lol this year has been shit on a sugar cone.
4 Likes
Between the corner choppers curled up off cuts that garentee to land pointy side up and the risk of a zap blinding and vaporising things. wouldn’t BDSM peopl pay to do the work for you? Maybe @longhairedboy could be a good money spinner and time saver for you
2 Likes
LOL I definitely agree. I probably saved an hour to two hours easily over using a pair of scissors to do all that corner rounding and I also used a multi sheet guillotine paper cutter to chop down the nickel.
Realistically, I think anyone that builds batteries on the regular should look into having laser cut pieces made. Having all of the items pre-cut before hand really let you go after it with the welding and get done quickly. At that point it might actually be welding that slows you down. But the whole experience is so much better.
But if you had a good idea on how you wanted to handle configuration, any nickel stacking, folded regions, balance lead connections etc. you would save a massive amount of time and frustration to have all of those pieces premade
I’d also recommend looking into creating a die to chop them uniformly and with a backstop that allows you to chomp corners or shapes more quickly and to length at the same time, would be much better than these handheld chompers do.
3 Likes
This would be ideal but when you’re doing custom batteries for custom boards, there isn’t much uniformity in pack size/layout. You would have to have square cut and stagger cut (and even maybe hexagonal cut for 7p brick packs) pieces for 2p through to 12p. For 18650 and 21700. Its not really viable.
3 Likes
Iv ask several esk8 supplyeres and most recently @DRI about some 4P 18650 shaped nickle with slots for welding. No one seems intrested in stocking it.
Good find, but still restricts the max draw to 200A. BTW, Hobbyking has a new high discharge lipo. Just placed the order for that.
1 Like
Keep in mind these are not a ‘purchased off the shelf’ item. We design them and pay tooling/setup fees for each design, and then MOQs must be met. Nickel isn’t particularly cheap to import given that it’s a dense raw material and pretty heavy.
The price difference between 18650 and 21700 cells is making it harder to justify investing more into smaller cells.
To back this up- overall demand & sales for our 21700 nickel has been far greater than 18650. We’ve shipped more 21700 style tab nickel in the last 2 weeks than 18650 style tabs in the last 3 months.
9 Likes
I’m down to buy more of your 21700 nickel. But I heard there will be a staggered version soon? If you need beta testers for that… 
1 Like
are there desktop laser cutters out there capable of cutting nickel and not exorbitantly expensive?
edit: as much as I like the corner chompers mine tend to create curled-up burrs and me no likey that.
4 Likes
that is sooooo funny
no
“Soon” as in hopefully by end of the year. 
It’s in queue but no promises on timeline there.
2 Likes
What prevents you from making this sooner (just trying to learn the constraints of production and if there is anything we can do to help)? Granted, we’re talking like 8 weeks left in the year but hahaha im impatient!
Probably the fact DRI has multiple projects in the works all at once.
“ROBOGOTCHI, coming soon to your local DRI stores”
2 Likes
Andrew and the freesk8 team are about to shake the community with ground breaking innovations in the next month or so. They have, what, 6 or 7 products they’re currently developing and I cannot wait
Lmk if this is okay guys so I can continue.
Scratched the fuck out of the nickel, placed a pool o solder, tinned the copper, then melted them together and made sure all the solder melted . Having a 130W iron helps a lot
Should I put some fish paper in here?
I refuse to continue until someone says this method won’t cause issues lol
2 Likes
I would like to see a little bit more of a pool of solder
also…Not that it really matters, but may I ask why you decided to go the X? It dope as hell, but it does use up more copper braid than just doing 2 short series connections.
1 Like
If the braid is too short it gets completely full of solder and stiff. To keep the braid long I crossed it. Also it looks cool
4 Likes