eLongboard - plastic is fantastic :D

[Idea]

Hi

I would like to present your electric longboard, in which motor mount, battery enclosure and electronic enclosure are printed on a 3D printer.
My English is bad, so I wrote a little (for errors in spelling sorry)

My eLonboard is made up of:
Deck - SantaFe City Cruiser
Trucks - Paris 195
Wheels - Orangatang Kegel
Motor - 2 x Turnigy Aerodrive SK3 - 5055-280kv
Lipo Battery - 2 x Turnigy 5000mAh 3S 20C Lipo Pack (optional 4x) - modular construction
ESC - 2 x FVT-120A
Transmitter - Quanum 2.4Ghz and FlySky FS-GT3C (Alternatively)

Other elements are printed

Conceptual design:

 

[Idea]

Motor mount is also printed, printed are also wheel drive gear.

More details of the project.

Battery box and ESC have a box sliding cover. I want to have quick access to LiPo

 

[RogerD]

Lovely modelling work on Sketchup (or what software is it?).

I can't see 3D printed parts being anywhere near tough enough for motor mounts, or the battery box. I 3D print a fair bit myself, but nothing in PLA or ABS is tough enough for the work that motor mounts have to do.

 

[Idea]

The project was created in Solidworks. The drawing is highly simplified and can not see the details. Box battery box ESC and motor mounts will be printed with the PLA, wheel drive gear with ABS.

 

[Vanarian]

The project was created in Solidworks. The drawing is highly simplified and can not see the details. Box battery box ESC and motor mounts will be printed with the PLA, wheel drive gear with ABS.

Please do yourself a favor, don't use ABS / PLA and use PETG instead! You'll find it to be way more cost effective and just better in any area than both PLA and ABS. eSun PETG is a quality one, that's what I use. Any problems I encountered are due to design only (or printer hazard), not material.

I use solidworks too, can I ask how you do the rendering and apply textures? Assembly is really useful feature.

Edit : To stick PETG to your bed, use washable glue and warm bed to 75-80C that's enough. Print at 240C for consistent object.

 

[Idea]

PETG is so sturdy? I do not know how my 3D printer can handle printing of PETG?I need to test the filament.

If printouts of PETG will be OK, perhaps the final version will use PETG, but a prototype will be the PLA and ABS because I have a lot of it.


I'm not so good at SolidWorks, maybe this tutorial will help you?
https://www.youtube.com/watch?v=BMOL6ZzPS0Y

 

[Idea]

Longboard in parts

The first version, not tested !!!

 

[blasto]

Very nice!

will you release your files?

 

[Vanarian]

Thank you for the link

The board is awesome. Yes PETG is great, I hope to show some videos of it soon so you'll get a practical idea.

Is it a personal project or will you sell complete boards / boards kits? Lovely design.

 

[chuttney1]

With the gap created for the sliding cover in the 3D printed part, did you run into any issues in printing that section? I assume with PLA, the hot filament would droop at the edge unless you had the fan blasting.

 

[nickkapoor]

Post pics of the insides!

 

[Gamma2]

I would LOVE to see your files. I'm getting started on my first build and have access to an Ultimaker 2+ Extended, but my modeling skills aren't nearly good enough to make stuff this good.

 

[Idea]

Very nice!
will you release your files?

Share files after testing on http://www.thingiverse.com/

..... or will you sell complete boards / boards kits? Lovely design.

Perhaps, but not in this version.

Post pics of the insides!

OK but for 2-3 days.

 

[Idea]

Photos with open boxes of batteries and ESC

Updated motor mount.

 

[Vanarian]

Excuse the word but that is frocking awesome. Nice structure, should make even more affordable the DIY.

 

[torqueboards]

Haha well done.. That's awesome!

 

[psychotiller]

Love how clean the design is! Have you tested it yet?

 

[whitepony]

the mount looks really great, wonder how long it keeps up! my roadside stuff takes quite a beating ... probably shouldnt try to jump so many sidewalks :lol:

 

[Idea]

Thanks for the compliments
In a week or two it delivers stl files on http://www.thingiverse.com/ so everyone who has access to the printer 3d will be able to do it.

Long-distance tests have not yet been. Longboard is tested only over short distances at low speeds. I had a knee injury, so tests of measuring temperatures at long distance driving at higher speeds are delayed.

 

[WeeChumlee]

Hi Idea
Really like the clean lines, awesome design.
Looking forward to the endurance tests.
Thanks for being prepared to share the design for others who may want to print and test it, that is the spirit that makes this forum so great.

 

[Idea]

In Poland, the winter and the snow so I still can not do the tests

Yesterday, riding a train out of boredom designed a version with one motor and battery pack 12x26650
This is only a preliminary concept.

 

[Vanarian]

Nice! Hey I do know of a Lithium hydrogen 26650 cell which manages 70A continuous and packs 3500-3600mAh, could be awesome for this 12S setup!

 

[Idea]

Nice! Hey I do know of a Lithium hydrogen 26650 cell which manages 70A continuous and packs 3500-3600mAh, could be awesome for this 12S setup!

Or VAPPOWER IMR 26650 has a higher capacity 4200mAh and lower prices, but smaller discharge current 40A.
In my case, not 12S, but 2x6S so the discharge current will amount to 80A.

 

[viper]

Hello,
wounderful work! its beautiful!
would really love to get your files - and try to remix them to a mountainboard. (credit eill be given)
any chance you can upload the files?
even if you dont wish to share the design, can you please comment on how it holds?
any tips when trying to design such a mount?

 

[alexaus]

Wow, awesome modelling and design work. I will, however, be surprised if everything can actually hold up. Some of the shocks a board experiences when hitting bumps or gaps in the road/path are pretty extreme. If they can crack aluminium and bend steel, ABS is gonna have a hard time I reckon. How are you stopping the motor mount from swinging around the hanger/axle?

I also suspect that the ABS wheel sprocket may wear quickly, since ABS has pretty bad wear characteristics. I have to recommend Taulman 910 nylon for this application, I've used it to successfully print wheel sprockets for my Evolve, where I just cloned and optimised the OEM design for 3D printing, even though the design needs reinforcement with nails because of the narrow bosses which interface with the Kegel wheels. The belt teeth have been exceptionally wear resistant, with seemingly less wear over time than the OEM part, which I believe is molded polyacetyl. I suspect that the nylon belt facing wears very well against the nylon 910. There's also little dust, I think less than before. I've used them for easily 500 km, or about 2 million rotations, with negligible wear on the teeth. Mine have to be replaced because the bearing seat in them widens and the sprocket goes crooked, but that's a consequence of the Evolve design where the sprocket has a bearing and doesn't screw into the wheel (bad idea IMO, the axle has to be really long and it gets bent easily).

My next goal is actually to test spur gears made from 910, so that the wearing parts of the drivetrain can be printed entirely, instead of still having to buy belts. I also don't like how belts can fail catastrophically with little warning, so I'd like to experiment with gears. I know that there are some disadvantages with gears like the possibility of rocks getting wedged in there or maybe increased wear, but they will be so cheap to print and easy to change. I'm also looking forward to the gear whine. The pitch is a nice speedometer, and the loudness lets you know the torque!