BRUSHLESS CASTERBOARD: Twin alien 6.4 kw and single 3.2 kw

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Oct 26, 2013
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Hello:) This is my first build thread ever. I think maybe some people would like the idea of a brushless casterboard, especially since it might not have been done before.
I didnt dare posting anything before I had tested that the timberwolf casterboard really worked with big 125 mm skike wheels, but it worked very good:) Its only 1 cm taller than an original timberwolf. Looking forward to hook up the two 63 mm alien motors and see what it can do. The ezsurfer casterboard is for my girlfriend and other friends so we can ride together. Here are some pics and more is coming....
 

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interesting,
seems like a small hubmotor is ideal here.

I am not a big fan of casterboards, (i think people would define them as having casters front and rear)
they seem pretty sketchy (tried them briefly long time ago)
hopefully they ride better with those skike wheels.


I think a fixed rear wheel might be a better platform,
http://wackyboards.blogspot.com/2009/07/roadsurf.html

or this 2 wheeler called Tierney Board. (i own one, not a big fan of it though)
http://wackyboards.blogspot.com/2009/07/tierneyboard.html

btw, did u see the e-skatecycle and e-orbitwheels i posted?
and the e-wheelman?
those are pretty funky also.
 
sk8norcal: Yes hub motor was my initial plan and I built a board earlier with that in mind. Picture down under. Big power brushless hub motor which is small in size I searched for a long time. But couldn’t find it. So I compromised and was planning to use a 6-7 kw motorcycle hub motor weighing over 10 kilo and 10 inches diameter. I built a fibreglassboard for it but didn’t succeed. It was too big and heavy and only went straight forward downhill. Luckily didn’t buy any motor or esc for it. I know there is a new scooter out now with a 150 mm hub motor but it will end in more height from the ground and therefore more instability. And certainly low power. Now I have 6.4 kw with only 1.5 kg motor weight.
This board here: http://www.actionisle.com/the-new-all-terrain-s-board/ is similar to a casterboard and could maybe work with hub motors.
Yes first time on a casterboard feels a bit sketchy but if you give it 15 minutes with hard try you start to feel free from the ground because you can go a bit sideways in the turns like a snowboard or wakeboard.
I think with a fixed rear wheel you would lose a bit of that free feeling not being able to slide but haven’t tried it out.
Yes I have drooled over the Tierney boards for a long time. Would love to try one. There is a limited edition in China or Japan that have bigger wheels with both wheels mounted same way. I was planning to motorize it but finally went with timberwolf.
Yes I have seen them orbit boards and was very tempted to buy, especially the wheel-man/bushpig. I search a lot for new toys especially under exam periods :wink:
 

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beetbocks: How will it handle? That’s a big mystery but since it already works perfect without motors I am thinking it must be some BOMB S%/&T!! :D I am very excited but you never quite know before you have tried it.

The skike wheels have some friction since it only has 2 wheels but I hope that will not become a problem since the motors should be very powerful?:) I think getting started without sensors could result in cogging, but I will give it a good push. I can propel it with carving so not too much friction. I will do whatever it takes to make it work. Maybe twin 80 mm alien 7000 watt?:) hehe

Another problem is that the sidewalls on my skike wheels are a “bit” thin so they could break due to motor force; worst case ending in faceplant :D

Yes with the original boards you wiggle your legs in opposite directions to make forward thrust and if you have some training you can go up steep hills without setting your foot down. I used it to school often but got tired of slow ass wiggling and now I will hopefully go airborne to campus with the new board :D I am gonna ride it hard till I get a ticket….or two or three…..or till I run out of money :D

By the way: What is the name of the firmware file that you used on that sick dual alien 63 mm 12S (10S) board? I managed to update mine alien 12S esc to 8S. CarLv_Uart is not the right one.
 
Latest photo: The motors is going to be mounted behind the wheels. Really wanted them in front of the wheels to get a shorter sving radius of the whole motor,but it will not give me enough ground clearance.

Will soon be making motor mounts and battery boxes in aluminium.

Drivetrain: 20# chain with 11/42 gearing to 125 mm wheel.
 

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It has an ordinary transport caster frame that is used to move objects. Original wheel was 100 mm. It is extended backwards to fit wheel and to make a larger pendel from side to side. The 25 degree angle is made with door hangers and m8 bolts.
 
Bindings: Belts from snowboard bindings. I think it will help under acceleration and braking but not when crashing :wink:
 
Jan Christian said:
beetbocks: How will it handle? That’s a big mystery but since it already works perfect without motors

By the way: What is the name of the firmware file that you used on that sick dual alien 63 mm 12S (10S) board? I managed to update mine alien 12S esc to 8S. CarLv_Uart is not the right one.

Well LV stands for low voltage .. I think I used. SkateHV and it was on the old software
 
Jan Christian said:
I built a fibreglassboard for it but didn’t succeed. It was too big and heavy and only went straight forward downhill.

interesting build, why wont it turn?


Yes I have drooled over the Tierney boards for a long time. Would love to try one. There is a limited edition in China or Japan that have bigger wheels with both wheels mounted same way. I was planning to motorize it but finally went with timberwolf.

do you have a link/pic for that China board?

tierney works very different vs the castorboard,
u cant wiggle pump the tierney board.
did u see that gas tierney board in my link?

I search a lot for new toys especially under exam periods :wink:

my blog has the most complete list of alternative boards,
here are most of the 2 wheelers

http://wackyboards.blogspot.com/search/label/swivel%20castor%20action
http://wackyboards.blogspot.com/search/label/surf%20action%202%20wheels
http://wackyboards.blogspot.com/search/label/mountain%20boards%20%282%20wheels%29


btw, i got 2 other weird rides with casters,
pumprockr and xglider
and also used to have a freebord

i think an e-freebord is an interesting idea... :idea:
 
sk8norcal: So you are the maker of wackyboards :D Fantastic site! I`m in there on a regular basis.

The fibreglass board wouldn`t turn because of several reasons. The casters had to much friction in the 360 degrees spinning top mounts. And the arm backwards to the wheel was to short. To wide stance. No torsionbar in the middle. Slippery deck. To many issues so started from scratch again.

The link to the tierney board: http://www.rb2002.com/shop_ts/lineup.htm Modell T-002-42-R
it has 105 mm wheels

Don`t think I have seen a gas Tierney: Can you point me to the link?

How was the free board to ride? Yes an e-free board could be very interesting. It would be an easy fix if we had 50-80 mm diameter real powerful hub motors. They would fit right in on many different boards. casterboards,skateboards,freeboards,inline skates.... There is a guy building them but they are very weak.
 
Jan Christian said:
sk8norcal: So you are the maker of wackyboards :D Fantastic site! I`m in there on a regular basis.

thanks!


The link to the tierney board: http://www.rb2002.com/shop_ts/lineup.htm Modell T-002-42-R
it has 105 mm wheels

that's a Japanese site,
all they did was mount the rear caster backwards.


Don`t think I have seen a gas Tierney: Can you point me to the link?

it's the link I posted before, last video.


How was the free board to ride?

i bought them back in 2000 i think, back then people were riding them without bindings, very sketchy because u cant leverage the board, easy to catch an edge. I gave up on it after catching an edge toeside. Later on, I rode with some of the freebord team riders, (all with bindings) they were very impressive. but i kinda lost interest by then.


i like this idea the best for an inlineboard,
2 supporting wheels on the side..
http://wackyboards.blogspot.com/2009/07/edge-of-creation-motoblade.html
 
If it wasn't so freaking cold I'd try out the pumprocker. I've got one in the garage from a while back. It would be easy to switch out the trucks with the electrics I already have.
product-hotspots.jpg

4c72d880-s.JPG
 
sk8norcal: Ahh just didn`t recognise the gas tierney, but I see it has a label :wink:

i like this idea the best for an inlineboard,
2 supporting wheels on the side..
http://wackyboards.blogspot.com/2009/07 ... blade.html
Yes its cool but would you ride a bicycle with supporting wheels..
 
dirkdiggler: That`s definitely worth a try :) I think you probably would get a shorter sving radius. Maybe if you have backmounted motors on your longboard you could just put the pumprocker front wheel on it.
 
Jan Christian said:
i like this idea the best for an inlineboard,
2 supporting wheels on the side..
http://wackyboards.blogspot.com/2009/07 ... blade.html
Yes its cool but would you ride a bicycle with supporting wheels..

actually, I would if i cant 'steer' it.
(which makes me wonder how a dirtsurfer bicycle would ride)
and its not exactly a fair comparison,
a bicycle with 2 skate trucks would probably ride horrible.... :lol:

this ride is kinda similar,
check the second pic,
caster front, tilting wheels rear
http://wackyboards.blogspot.com/2010/02/dirtdog-kiteboard-by-rockville.html

and this flexscoot experiment
http://www.youtube.com/watch?v=y786KVHNIDk
 
sk8norcal wrote:
actually, I would if i cant 'steer' it.
Good point :wink: I would like to try dirtsurfer bicycle...maybe hard to shift weight from one turn to another but don`t know.

sk8norcal wrote:
this ride is kinda similar,
check the second pic,
caster front, tilting wheels rear
http://wackyboards.blogspot.com/2010/02 ... ville.html
Why not also have a caster at the rear? It would probably get good sving radius and freedom.

sk8norcal wrote:
and this flexscoot experiment
http://www.youtube.com/watch?v=y786KVHNIDk
Hmmm the tilting rear makes it very stable and that probably answers the question above.
 
sk8norcal: Seen them both, but not the two videos in the second link. I would like to get my hands on a similar board like in the first link, but caster at the rear as well and torsionbar in the middle. Kind of like a mountain casterboard. The only on I have seen I can`t find where to buy: http://wackyboards.blogspot.no/2009/07/s-board-all-terrain.html I would like to have that with twin 80 mm 7000 watt alien motors and go to the trails :D
There is someone thinking the same: http://grabcad.com/library/off-road-electric-casterboard but this one I think has too much ground clearance and would be unstable.maybe
 
sk8norcal: By the way the link: www.sboard.com/S-Board/All_Terrain.html is not going to the right place anymore. Was this s-board able to be purchased when you found it?
 
did you notice in the 2nd audax video, one guy was riding without the side wheels?

the Audax is interesting, not sure exactly how their casters function. Looks like the fork is linked to a flex tube acting like return springs (which makes them function more like a tierney)

sicnomen_audax+3.jpg



By the way the link: http://www.sboard.com/S-Board/All_Terrain.html is not going to the right place anymore

there is lots of dead link on my site, lots of these hybrid board companies fail to survive.

I leave the links so one can use the "wayback machine" to check out the site.
http://web.archive.org/web/20080424100827/http://sboard.com/S-Board/News.html

regarding that S-board, I remember seeing the video on their site, not very impressive, some guy going slow on a grass slope.
I don't think it ever made to market.


also, have you experiment with a casterboard with no torsion bar?
seems better actually...
ie, the Axis casterboard

check this out,
weird tierney hybrid,
both boards have a carver truck front
he also got a home made ripstik with rear brake.
tierney hybrid.JPG
http://www.youtube.com/user/Moondaka89/videos

maybe i should try pumprockr caster front and tierney rear combo
or tierney/skate truck mix
http://wackyboards.blogspot.com/search/label/surf%20action%203%20wheels
 
sk8norcal:
did you notice in the 2nd audax video, one guy was riding without the side wheels?
didn`t see that, even when I looked for it tvice :)

Looks like the fork is linked to a flex tube acting like return springs (which makes them function more like a tierney)
Jepp, I think you are right.

Hah didn`t know about wayback machine. Cool

regarding that S-board, I remember seeing the video on their site, not very impressive, some guy going slow on a grass slope.
I don't think it ever made to market.
hmm maybe the rider didnt`t know how to beat it properly or maybe it needs some changings to work perfect. I would like to see that video! Do you hear what I say s-board company?! :) I need it! It would probably be my future build.

also, have you experiment with a casterboard with no torsion bar?
seems better actually...
Yes the torsionbar needs to be very stiff or not to be there. If its to loose (no resistance) it will ruin the "feeling" and make a sloppy unstable ride.
On the timberwolf its quite stiff and you can choose when to use it. I like the ability to make sharp turns with no effort, maybe a u-turn on a tight path, thats were the torsionbar come in handy. Its a bit stiffer on the ezsurfer as well, and it has spring back casters which help a tiny bit in the turns.

weird tierney hybrid,
both boards have a carver truck front
he also got a home made ripstik with rear brake.
I`d like to try the E-board with a carver up front. Don`t think the freeboard tierney he has works to good, but need to see it ride. Maybe like steering a train.

maybe i should try pumprockr caster front and tierney rear combo
or tierney/skate truck mix
Yes you should absolutely try both! :D Maybe caster front, carver rear...and two rear mounted motors...
 
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