AliExpress battery pack unboxing

Batteries, Chargers, and Battery Management Systems.
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flippy   100 kW

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Re: AliExpress battery pack unboxing

Post by flippy » May 15 2019 6:06pm

yes, they are original plates.
i noticed that QS does not have a really thight fit on the torque plates. i have had to put shims in mine and others to prevent the axle from turning on the plates so the flat sides had no play in them. in some plates the space was well over 1mm.

i plan on getting a few laser cut when i get my 13" motor that fit really thight on the flat sides.

does QS say anyhting about their V4 motors on what is different?
Lithium beats liquid dinosaurs.

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MJSfoto1956   1 kW

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Re: AliExpress battery pack unboxing

Post by MJSfoto1956 » May 15 2019 6:41pm

flippy wrote:
May 15 2019 6:06pm
i plan on getting a few laser cut when i get my 13" motor that fit really thight [sic] on the flat sides.
Where will you send your files for laser cutting?
flippy wrote:
May 15 2019 6:06pm
does QS say anyhting [sic] about their V4 motors on what is different?
Nope, the photo I posted is what they shipped with the motor.
I'll look into perhaps using some shims if there is any play at all.

Do you think using strips of aluminum foil tape might work as a super-thin shim?

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flippy   100 kW

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Re: AliExpress battery pack unboxing

Post by flippy » May 15 2019 7:08pm

i have a local company that has a 2kW laser and i know the owner. it should be able to cut 10mm steel

alu foil wont work, its too soft. for the 205 motor i used steel washers and cut them if they were too big and tapped them in with a hammer. now i have a welder so i will probably just try and weld it up and file it back down again.
Lithium beats liquid dinosaurs.

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MJSfoto1956   1 kW

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Re: AliExpress battery pack unboxing

Post by MJSfoto1956 » May 15 2019 7:47pm

flippy wrote:
May 15 2019 7:08pm
i have a local company that has a 2kW laser and i know the owner. it should be able to cut 10mm steel
What do you think it might cost to have them fabricate two of these @ 8mm thick (shown in red below)?

IMG_7964.1280.v2.jpg

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flippy   100 kW

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Re: AliExpress battery pack unboxing

Post by flippy » May 16 2019 10:31am

i'll ask, but shipping a couple steel plates to the US will be "prohibitive" in cost.

might want to find a job shop near you with a cnc mill. they can crank a few out in no time. if you give them a complete CAD then it should ne easy for them if they only have to generate the gcode.
Lithium beats liquid dinosaurs.

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MJSfoto1956   1 kW

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Re: AliExpress battery pack unboxing

Post by MJSfoto1956 » May 16 2019 12:38pm

Finally some sun! What the brake-side of the motor+swingarm looks like:

IMG_7968.1280.jpg

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flippy   100 kW

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Re: AliExpress battery pack unboxing

Post by flippy » May 16 2019 1:32pm

i still find it hillarious that it only going to to scooter speeds. with a matching controller and battery it can do insane accelerations.
Lithium beats liquid dinosaurs.

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MJSfoto1956   1 kW

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Re: AliExpress battery pack unboxing

Post by MJSfoto1956 » May 16 2019 1:41pm

flippy wrote:
May 16 2019 1:32pm
i still find it hillarious [sic] that it only going to to [sic] scooter speeds. with a matching controller and battery it can do insane accelerations.
Baby steps, flippy. Baby steps.

Besides, what's wrong with taking pride in your work? :P

M

P.S. I just ordered some 0.2mm 316 stainless steel shims for the dropout which should be good enough for the time being

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