Tried to vote for you but it wouldn’t let me select a worst esk8 brand so I couldn’t submit the form. I suspect Potter is sabotaging.
Voted for ya where I could.
Also cant belive Carvons still on the list.
Thanks mate
Are you looking to buy an Electric Skateboard in 2019?
Yes Jay Boston. I am looking to buy an esk8 in the next 4 days.
I said yes
Guess I gotta get a board now
Sorry, would rather vote for Enertion. They fulfilled about 0 raptor orders in 2019. And the other nonexistent company, Inboard. Too bad there is no Mboards option.
Check out Jay Boston review of Thorium X4
Lovely but there is no way he was gonna get anywhere close to hitting top speed on that road
Great Job Markus!
AT version:
Trucks:
Precision cnc baseplates with 7075-T6 Aluminium made with 0,005 mm tolerance
Precision cns hangers with titanium shaft
Bushings and pivot made by the best bushing manufactory in the world: @RipTideSports
Wide amount of options of durometer of bushings for the perfect stability and carve for your weight
43° rear baseplate and 49° front baseplate for ultimate stability on high speed
Super wide hangers which gives you confidence and stability at high speeds
Gears:
Precision made gear drives with extremely high quality
No belt that can snap, no belt that can jump over cogs under heavy braking and heavy acceleration for safer and better acceleration and braking
Very low maintenance need, only need to add new grease a few times a year to keep the sound low
Helical gears for lower sound
Angular contact ball bearings to sustain the axial loads
Longer range and better freeroll thanks to lower resistant in gears compared to belt
Motors:
Huge 4500W! 6396 140KV motors for insane acceleration and performance
Big ass ball bearings inside motor for longer lifetime and less vibrations
Wheels:
Big 200mm Tyres to ride over most things – You can worry less of road cracks
Precision CNC machined rims from two pieces of aluminium
Solid Core hubs are produced using CNC milling machine from a solid hunk of extruded aluminium that has been T651 Heat treated (Aerospace-grade quality) all of which is constructed & connected together using marine grade stainless steel nuts & bolts which lets to provide absolute precision and rigidness for those bumpy roads.
OH LORDY, gimme gimme gimme
Those TB110 arctic blues are moneyyyyy.
You guys should think about a single drive budget version perhaps. The gear drives always come in pairs, so there’s no way really to get a cheap single drive gear drive DIY part build atm. I’m just thinking – a single 6396 motor is already more powerful than most dual drive prebuilts, surely there’s an untapped market between an exway and a tank
Edit: single drive is more efficient, so you can get the same range with a smaller (cheaper) battery. You could really cut down on overall cost.
Is single drive actually more efficient? I think it depends on ride conditions and ride style. I guess its how much you heat up the motor vs the extra weight/resistance of a second drive, because if you’re constantly pushing 90 amps and heating everything up when you could be pushing 40-45 on each without high temps which actually loses more energy
100% there is a fat market gap around $1500. Nothing really exists bar maybe like a single drive trampa or something weird like that (Or boosted but lmao)
Can’t find the source anymore, but on the old forum there was a thread where people discussed this, and it ended up being something related to the physics of driving 1 motor vs 2, blah blah blah too difficult for me to understand (I think it might have been @professor_shartsis or @linsus who were arguing about it)
Calculators like calc.3dservisas.eu divide your range by 2 if you switch from 1WD to 2WD, although in practice people report it just being around a 30% loss. (Of course, for the same power you need a larger motor to decrease heat.) If you look at the people who get the most range, they’re usually single drive builds.
I think it would be a great idea to re-open the discussion to find out why dual drive is less efficient. Maybe someone who understands it well could explain it at a level that everyone understands
The problem with a general 30% figure I’d guess is if someone goes from pulling 70 amps on a single setup to 55 amps on each on dual its not exactly half (I think most people switch over to dual to get more performance so they’d probably use it), I think it would be interesting to see if you set max amps to 35 and see how it goes.
But yea, 100% release a single drive imo
Motor and electric control theory are big subjects to cover and not that easy to just lay down. I’d say reading dem books would give you a good foundation but you still wouldn’t be an expert.
Thing is that an electrical motor has to work under a good amount of load to be in its top efficiency levels, it’s meant to get hot, if it its not then its outside of its operating span and a smaller motor would be beneficial. The load of a esk8 is far from linear. If we push 50amps+ its for relativly short peroids of time. adding a second motor to share the load there will get you to place B quicker but there are very few scenarios where a dual motor setup is more efficient than a single.
The extra static consumption/drag that one extra motor adds simply outweighs the efficiency it brings to the table. (make note that efficiency and power are two very different things)
Gearing plays a big part of course here of course…
Only exmaple I can bring from experience is a board I ran on 12/34 gearing with a 5050(?) sk3 motor. On relativly flat ground I had great milage. Sadly datalogging wasnt really present then unless you brought a laptop with a USB cable. So I cant swear on a wh/km, but I had trouble draining my 10S3P empty on my ventures. It didint like bigger climbs tho, small hills were fine but it got way to hot on anything big.
No the limiting factor is stoping power need 2 wheels braking 1 just has not got the friction needed to stop quick enough with out skiding.
If there was a way of 1 motor runing 2 wheels like a go cart then it would be eg 2 gear boxes and a extended axel then it would be practical. untill then 1WD is just not practical but this would only save a VESC and motor so €300 ish and a good option for a little pocket rocket of a light commuter build IMO