Do It for Science | Metasurf Drives | Hummie Deck | 12s4p | Foccers

First off, thank you @sofu for carrying these heavy ass things in person all the way from Asia.

Got these today, the box was a bit beat up but the good bits inside arrived safe and sound.

A little surgery will be needed for the motor phase connectors. Replace whatever this is with bullets:

aaa

I thought these drives would be the perfect fit for my road board, should be a pretty simple swap.

Good initial impressions, appears to be well built, way more rolling resistance in the motor than Carvons. I bet itā€™ll be barely noticeable once itā€™s weighted and rolling.

Theyā€™re not much wider than SRz rkp, maybe another 10mm?

May get started on it after the game tonight, updates to followā€¦


Sat night edit:

Swapped the drives on, super easy, setup went off without any issues using BLDC Tool. Setup to run FOC.

Settings:

https://i.imgur.com/Z5jJsjy.jpg

In progress:

https://i.imgur.com/g1QVE6b.jpg

Took it out for a quick test ride, impressions are great.

1mph to 15mph (or so) feels nice and progressive, similar to the pull you get on a R2. But for some reason, to me, the speed from 10mph to 20mph (or so) is super strong and really punchy.

I bet this feel will improve when I recharge the battery, at time of this first ride it was hitting soft cutoff (39v).

Didnā€™t do any hill tests since it was hitting soft cutoff but will charge it up tonight and take it up some hills tomorrow.

I did not get this impression at all. I have my batt min -20 and it brakes HARD. Nearly flew off braking at speed. Need to also mess with full brake erpm to lock the wheels at a higher rpm. Will also have to tone down batt min to ease up braking a bit.

Swapped out the awful, rock hard black bushing the trucks had on. Put on blood orange insert bushings in a cupped washer.

Now, I wish I could assure everyone the axles are good and tested. Iā€™m about 150lb and I think itā€™ll take some serious shakeouts to decide if the axles will hold up with a heavier rider, on less than ideal roads.

But so far Iā€™m super stoked about these. Might be replacing the rear mounted hk sk8 6354 satellite setup if additional testing turns out ok.

Some more pics:

https://i.imgur.com/MO4OLc1.jpg

https://i.imgur.com/OteTfh8.jpg

https://i.imgur.com/yM2UgjN.jpg

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Ahhh ya, this is going to be dope :smiley:

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Iā€™m hovering over the add to cart button until you run this thing. I want these on my light weight shopping trolley.

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Waiting to see what happens with the narrower truck thatā€™s rumoured to be coming

Does look a bit on the skinny long side tbh. Iā€™m kind of like DD and hubs for short boards and silly big arse motors for long boards.

Updates on original post.

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Above Deck motor end pic pleaseā€¦

I think Iā€™m gonna end up putting these on my Hummie deck as wellā€¦ Do you think drop through would work? It seems a little bit close

not sure, was going to try that last.

low riders are cool until u scrape the enclosure on an ant hill.

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I love my low rider hummie deckā€¦ but youā€™re right about scraping lol, my poor psychotiller enclosure has seen more road rash than I have lol

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Thanks for the post.

Do the motors get hot? Howā€™s braking at 25mph+? (for comparison, R2 brakes well at low speed but not so much at high speed)

motors were no warmer than satellites. but then again, didnā€™t run them at full voltage.

braking, IMHO, is better at speed than low speed. your results may vary.

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any new updates? I just stumbled across their website and nice to know they just started out!

Felt the same thing todayā€¦ weirdā€¦ brake seems to cut out when you are at near stop. Probably the lack of sensors.

not much, did take it out on a full charge and it rides great.

but axles are weak af, itā€™s been bent already:

Thatā€™s not how they should behave. I have unsensored motors and at near stop, they should full short and give you very strong braking.

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are you unsensored motors in a satellite config? is so, not the same thing as direct drives.

with pulleys the reduction should multiply braking force. does not apply with DD.

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Hypothesis: considering motor needs to know position to brakeā€¦ and motor doesnā€™t know position at low speed cause no sensorā€¦ motor canā€™t really brakeā€¦ only one way to find outā€¦ iā€™ll go run one of my builds uncensored and see if it does the same thingā€¦ :stuck_out_tongue:

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Oops, keep forgetting about that.

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And? Whatā€™s the verdict?