The Step Bro - A Largely 3d Printed Build - COMPLETE!

@BenjaminF you should do a side by side comparison using your dyno

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you could just tag me next time :kissing_closed_eyes:


It wasn’t temps or shfi. It was a fucking rock or some other foreign object. Fucking unlucky. Looks like a big chunk taken out, no idea how something could fit through the gap in the motor to do that much damage.

On aseperate note, there is fuck all holding that sensor pcb in position. Could really use a bit of extra epoxy on/around those.

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Good stator design and steel with high peak flux.

Also windings are not just windings. The initial enamel reacher had was cheap junk and 180C rated. A few people including myself fried those coils. So I upgraded them to 220C high quality polyester enamel.

For the performance and reliability of the V5 reacher the price is amazing. And you don’t even have to pay for all the R&D I put into developing them

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Those are some serious buzz words!

My good friends at @ApexBoards have sorted me out with a replacement motor and its due to arrive this afternoon :partying_face:

I was thinking about getting the Saites, but I didn’t wanna leave the single good flipsky motor to rot, and also money is kinda tight right now, so just replacing the one motor was a good option.

I think moving forward, i’m gonna save up enough for a whole new drive train so that if something like this happens again, i can stay on the road.

I reckon i’m gonna go for matrix iii with newbee drives and radium motors, and gear it for a bit more top speed on 8 inch. That way i’ll have a street machine option as well as the current off road option. Expensive spare parts tho… may take a while to save for :rofl:

In any case, the board should be back on the road this weekend, i’m excited, i’ve missed it!

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Got the board back together today and did a few little back and forths in the shed. Noticed something interesting.

Now that my puck has been upgraded with the new fw, i’m seemingly getting more jitters on the sensorless startup.

What was even more interesting was that the upgraded puck in reverse STILL seems to deliver a punchier start than going forward, as well as less jitters :thinking:

I will be experimenting more over the coming days, but I managed to improve the jitters a little bit by just running the non-silent mode of the 45deg rather than the silent one. Tried all of the modes except plain hfi, the non-silent 45deg was the best, vss was the worst.

What a joyous day!! Its great to have it back on the road!

Not entirely stoked with the hfi launch. There is an inconsistent delay a lot of the time which makes it difficult to brace for/ride the launch. I need to dedicate some time to redoing the stomp pads, sensor extensions and motor connection covers so that I can run sensored again.

BUT, the new puck fw is a hell of a lot of fun, super stoked with that! I can see my consumption going up tho :rofl:

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Haha gave it a good squirt today and consumption is definitely up… 26 from 21 :sweat_smile: i didn’t get that much fatter in the last 3 weeks :sweat_smile:

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Not much to report here really except that the new puck fw is fucking awesome, really enjoying the punchiness, trying to dial in my wheelies now :partying_face:

Ordered some 90A APS barrels to replace all my boardside 87A krank fatcones. Just swapped them out, on the charge now then i’ll pop out in a bit to give them a run.

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So definitely worth updating the ouch firmware then?

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Puck :joy:

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Yeah i think so. If you don’t like it, you can tune it back to the way it was. Or like i’ve done, kept a couple OG and just updated one

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The bushing swap was great.

Turning is easier to initiate, more fluid and has a little less center.

But i haven’t really gained any turn :expressionless:

And the occurrence of heel and toe bite has steeply increased.

Next steps: add an extra 5 degrees at the front for a 40/30 split and push the front and back trucks out a little to stop the bite. Will push the front a little more than the back to compensate for the extra 5.

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For real dude, I didn’t expect such a noticeable difference but it’s definitely much more lively

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OK

so this one is a long overdue post but I been busy with non esk8 stuff. Finally got myself a laptop so that I can do computer things from my van.

step bro.step (1.8 MB)
step bro.f3d (38.4 MB)

here they are in step and f3d files, everything you need to make all of my cad parts from this project. Enjoy! and don’t ask me to break out any parts from the project, learn some CAD skillz and DIY!

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Those files will come in handy for more people than just me hopefully!

I’ll start by saying that as the new caretaker of the Step Bro, I’ll continue it’s evolution here, just to keep the history all together really… so lets start where it changed feet.

Step Bro

Deck: DIY split angle 35/30 MTB deck - hoop pine, iron bark, basalt, carbon and fibreglass
Enclosures: DIY 3d printed PETG with aluminium lids
Drivetrain: Apex Air trucks with Apex Jump Drives running 140kv 6384 Apex motors. MBS Fivestars and 9 inch tires
Battery: 16s6p P42a, split in two. 16s4p below deck, 16s2p on top. Sharing the same JBD smart bms in the top box.

ESC: SKP Solos with built in metr module for telemetry

Remote: Currently running Hoyt puck with +20% expo, but have a thumbwheel z-mote on order

Accessories: DIY 3d printed TPU stomp pads with MBS F5 bindings and heel straps.
Big Beems headlights and C8 tail light from PEV Components
DIY 3d printed PETG handles front and back

Power settings per motor:
Current mode
Motor Amps: 100A
Motor Brakes: -70A
Battery Amps: 60
Battery Regen: -50

Evolution
Drivetrain: Apex Air trucks with Apex Jump Drives running 140kv 6384 Apex motors. MBS Fivestars and 9 inch tires -
This cannot be, I smoked one of the Apex motors and being a Flipsky brand, well… it has no place on any board I own so they are being replaced with Radium/Reacher 151kv 6485, will also be upgrading to MBS Rockstar II Pro and for now sticking with the 9 inch.
I love the feel of the Airs on the move, they are stable as a rock and predictable through loose soil and gravel… but you have to notify them last Tuesday if you want to turn at low speeds and I cant have that so I’m going to try a Combo of Airs at the rear as per original and a Newbee RTKP truck at the front to see if that can get me around a corner.
Accessories: Guuuna have to change the Bindings setup for now, I cant make myself commit to the F5 bindings completely, probably mostly skill issues and Im hopeful I can progress… anyway, I tend to move about on the board, so Tomiboi hooks are the best option for me. I have them on 2 other boards and am very comfortable with them.

All of this is just tuning an already fantastic machine to suit my own style (or lack of) and current skill… or lack of…

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Glad you got this board and will continue to update!

I think the F5 bindings are something that take a little getting used to but offer so much more control over the hook style for offroad. I’m personally trying to get used to being fully adhered to board with the heel straps as well. That’s another level of control but then you’re now as one which means no bailing off board at all haha

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Part of the issue is that I have a reconstructed left foot/ankle and strapping that foot in always killed me in wakeboarding/snowboarding… not that it stopped me from doing it, fact is, I took it all up after the reconstruction haha… I just love hurtie things and hate being told I’ll never do something I didnt do before haha… Having that liability on the foot/ankle in the back of the mind makes it even harder to commit to locking it in, movement range is severely limited on that foot so moving it about to position myself is needed and TBH having it locked in frightens the shit out of me and this isn’t a game of hesitations, not committing %100 seems to be a more dangerous/painful option.

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I’m intrigued by this idea. This could be really fun. man… now you’re making me want to do this on my 9" tire 4wd mtb lol

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