Search found 1914 matches

by ridethelightning
May 15 2021 6:17am
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

Regarding tire size, it sounds like you have MidMonsters, not HubMonsters. HubMonsters are slightly larger and come only with a 13" rim, though they may have made some with smaller for other companies im pretty sure i have the full size hubmonster, it came in a pressed steel 10" rim. i th...
by ridethelightning
May 14 2021 3:12am
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

awesome wheel build! Where did you get the wheels please? i have done something similar with cast 5 spoke 12"wheels, but i had to make a stainless ring adapter to get it to match up with the existing holes in the motor flange. i did see the little cast 12" wheels with holes in them, but i ...
by ridethelightning
May 14 2021 2:59am
Forum: Battery Technology
Topic: "Copper/nickel sandwich" buses for series connections
Replies: 61
Views: 4531

Re: "Copper/nickel sandwich" buses for series connections

id be keen to see if you manage to weld the nickel plated copper. i tried plating my own but the power of the weld pulse for copper just flashed off the nickel when i tried to weld it. if i can find some tin it may prove to be better. i dont know how the power tool packs are done, many use plated co...
by ridethelightning
May 13 2021 1:13am
Forum: Battery Technology
Topic: "Copper/nickel sandwich" buses for series connections
Replies: 61
Views: 4531

Re: "Copper/nickel sandwich" buses for series connections

ace man! that looks like good stuff. how did you get .3mm,? link is 0.15mm i saw
by ridethelightning
May 13 2021 1:06am
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

john in cr is the one who called the motors hubmonsters, he reported having a "dealership" or at least importing them by pallet from the only factory that made them. afaik, hes the only one who knows where/who they are on es, but one could dig around to find it by contacting rmartin or eri...
by ridethelightning
May 13 2021 1:02am
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

correct. qs 205 50H v3 means 205mm stator DIA, 50mm magnet width(height) not sure why they say height...v3 means it has the max copper fill.
by ridethelightning
May 12 2021 7:20am
Forum: Battery Technology
Topic: ULtra Compact 1800W charger + Eltek programming
Replies: 294
Views: 59914

Re: ULtra Compact 1800W charger + Eltek programming

Is this of any use to anyone? Seems like you guys do this for free but it might be useful if you want something a bit more simple. DSC7370_900.jpg https://vk4ghz.com/product/eltek-flatpack-2-controller/ ok so i ordered one of these to program a few flatpacks. they discontinued the 48v model, now th...
by ridethelightning
May 12 2021 7:07am
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

I might be delusional but this is why I spent so long looking for a hubmonster- The hubmoster family is reported to have been manufactured in Japan, materials etc, but assembled in China. the critical things in these motors I think are the quality of magnets, steel in lams, perhaps copper purity, po...
by ridethelightning
May 11 2021 6:26am
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

those are huge motors. so true about qs under rating their stuff.

it would be great to see some specs on those motors, 6x4 gage phases is a promising start :)
by ridethelightning
May 10 2021 7:40pm
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

great tips about consolidating halls/phases sets, i think i got the info from J. in cr and others just a few pages back, at least they knew the plugs i had and told me which sets were paired.
by ridethelightning
May 10 2021 7:37pm
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

its ok. i get deja vu every time i open up another motor :D If you do take your motor apart and I recommend you do, you will need a 3 jaw puller yep iv got one ready, but i know how those magnets like to skew and grind on their way in and out even with the puller so im probably going to (if i even b...
by ridethelightning
May 10 2021 3:57am
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

yeah, iv almost half grown up now :D
by ridethelightning
May 09 2021 11:58pm
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

yeah i was tempted not to open mine just to keep the original seal, but ill probably do it some time just from curiosity. guese i can always seal it back up too. i think ill try dual max e to start off as i have a few kicking about... :| id love the nuc 24s but thats serious doe, and more controller...
by ridethelightning
May 09 2021 9:17pm
Forum: Battery Technology
Topic: "Copper/nickel sandwich" buses for series connections
Replies: 61
Views: 4531

Re: "Copper/nickel sandwich" buses for series connections

ok this thread is COOL! ill post any more...."experiments" i do here soon :D
by ridethelightning
May 09 2021 8:51pm
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

yeah i was tempted not to open mine just to keep the original seal, but ill probably do it some time just from curiosity. guese i can always seal it back up too. i think ill try dual max e to start off as i have a few kicking about... :| id love the nuc 24s but thats serious doe, and more controller...
by ridethelightning
May 09 2021 7:19pm
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

Voltron wrote:
May 09 2021 12:30am
KIMG0192-800x450.JPG
classic pic. it looks like the outer shaft has seen some corrosive forces, but looks like the inside is still clean as a whistle, these motors have a rep for being well waterproofed.
by ridethelightning
May 09 2021 5:36am
Forum: Battery Technology
Topic: Spot Welding Copper Strips to 18650 Battery Cells
Replies: 534
Views: 88481

Re: Spot Welding Copper Strips to 18650 Battery Cells

anyone able to recommend a good source of tin for plating copper?
id like to try it as i suspect it may work better than nickel when it comes to welding
by ridethelightning
May 08 2021 8:32pm
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

would be great to have a look at that. the thing with the hubmonsters as i understand is the quality of the materials in the motor, big fat motors are not so hard to find but they may not have the efficiency.
by ridethelightning
May 08 2021 8:40am
Forum: Battery Technology
Topic: Spot Welding Copper Strips to 18650 Battery Cells
Replies: 534
Views: 88481

Re: Spot Welding Copper Strips to 18650 Battery Cells

"debbie downer" :lol:

what you say is so true. some cells from old necro power tool packs from the dump, reweld with copper , charge and let loose..
by ridethelightning
May 08 2021 8:08am
Forum: Motor Technology
Topic: Hubmonster teardown
Replies: 174
Views: 9884

Re: Hubmonster teardown

Lets call these what they are...6 phase hub motors. No idea what a "hubmonster" is! That's totally non-descriptive. I have one with the attached cast 10" rim and that's got a 60mm tall stator in it. I have 2 with the bolt flange and they have 65mm tall stators in them. I have 2 more ...
by ridethelightning
May 08 2021 7:08am
Forum: Battery Technology
Topic: Spot Welding Copper Strips to 18650 Battery Cells
Replies: 534
Views: 88481

Re: Spot Welding Copper Strips to 18650 Battery Cells

i havnt done testing, but if you have say 120mm wide pack that fits in a frame and can't be wider, and you want to pull say 250 or 300A from that pack, i think it would be tricky to get enough nickel in there.

provided you have the right welder, its really not much work
by ridethelightning
May 08 2021 2:05am
Forum: Battery Technology
Topic: Spot Welding Copper Strips to 18650 Battery Cells
Replies: 534
Views: 88481

Re: Spot Welding Copper Strips to 18650 Battery Cells

very nice! the other advantage of using thicker copper is that i find the 0.1 is so thin that it has very little mechanical strength at the weld points. I like to use 0.2 with a sandwich, and i can recommend the great welder i bought from diy dude in china, https://www.youtube.com/channel/UC9_O7fpvf...
by ridethelightning
Oct 05 2020 8:26am
Forum: Battery Technology
Topic: Copper strips instead of nickel?
Replies: 41
Views: 5980

Re: Copper strips instead of nickel?

want to build wrote:
Oct 04 2020 1:25am
apart from resistance increase is there a risk of fire starting if using non coated copper to solder on 18650??
or other things to consider?
id say resistance decrease if anything if using copper, but best not to solder anything directly to 18650. there are very good reasons not to
by ridethelightning
Oct 05 2020 3:44am
Forum: Battery Technology
Topic: Spot Welding Copper Strips to 18650 Battery Cells
Replies: 534
Views: 88481

Re: Spot Welding Copper Strips to 18650 Battery Cells

I saw they are still selling the massive FET switch. I can't quite read the part number on the FETs, do you know what FETs they're using? I'm so tempted to just order one, but they're using TO220 FETs, and I couldn't find any with really high peak current rating indeed, but what you cant see is tha...