Nice. How about the rest of my post, was my aerodynamics thinking reasonable there? Did I defy physics there too? Are you really trying to show the faults of my design to help me out or are you doing it so that you can sell something differently, but still based, from it?
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I’m no longer going to give feedback on your design. Good luck with it 
Is that really what this is about? I wouldn’t be selling anything if your adapters had fit the wheels they were supposed to fit from the get go. I would’ve tried to reach out but after not receiving replies from you for months at a time when I reached out regarding other things, do you really blame me for not trying?
I did not intend to make a single cent from the parts I sold. I will send you a PM with extensive details of the group buy, the quotes I gathered from machine shops and how much people paid me. Anyone who wants details on what parts cost me and how much I charged my “customers” can reach out to me. I have nothing to hide. I do not think these details are relevant to this thread or I’d post them here.
I would honestly rather not sell a single thing. I have a full time job. This is just a hobby for me. You left me with no option though as you can barely keep up with the orders you’ve gathered over the past 2 years.
Sorry for derailing your thread. Good luck with it.
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You need an inlet near the center of rotation for air to be supplied. I don’t see where the air can enter. Sure it will try to leave the cutouts because it is being spun around at high speeds (because of centrifugal force, like how a balls wants to fly out when you spin it around wiht a string attached), but doesn’t have a constant supply to replenish the lost air.
This is a screenshot from a journal paper to make things a bit clear about how the air would flow. Your cutout would act like the fan style on the left.
The image on the left is not very clear so here’s another similar fan.
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Again you guys have no idea how things are in relationship with my design. The motors do not have an opening so air really does not get in it.
What it has are heatsinks that are suppose to help radiate out the heat. If I would have fully covered them, then they would be useless. That’s why I invented a Wheel Adapter that still makes use of them. It’s really that simple!
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Okay. You will surely have better cooling(both due to radiation + convection) because of increased surface area due to the adapter, but do understand that the cutout in the adapter doesn’t help in trapping air and cooling your motor.
Also the internal fins doesn’t increase cooling by “radiation” because the net surface area remains the same(heat radiated from one fin enters the other). The fins would help a lot if there was some air flowing over it, which is again not the case.
A different design of the adapter that has a lot more surface area with air flowing across the surface is what is needed for improved cooling. It is okay to be defensive about ones design, especially when the internet stranger could well be just pulling things out of his/her ass, but I had the chance to formally study all of this in the past.
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Damn, I don’t have time for this.
First off, your photo is wrong:
Here’s my very unprofessional MS Paint of the inflow in my design:
And I’m not being defensive, inventing new physics or anything. I’m just explaining how my design works in relationship to eskating.
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Sorry, that inflow wouldn’t happen, not while the motor is spinning. Two ways to think about it:
- Inflow needs an outflow(otherwise it would be storing air in that space)
- When the motor is spinning, it would rotate any air in that space along with it and that would have the tendency to fly out(instead of in)
Since this is not going anywhere, I guess this is the last I’ll talk about it. What you have is probably already enough (given that so many people are already riding them). Good luck.
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Well, considering you totally got my design wrong and didn’t even acknowledge it, I’ll just take my chances then. Good day to you too sir.
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The first pic above with the big red “W”… does represent the part . The centrifugal force will overpower the air coming from the front. And it’s the same shape ur covering and on the other side of the motor.
Good days to all the good sirs!! Hhaaaaa.
You’ve physically threatened people on here me included. Maybe the web is not for u.
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What do aero engineers know!? It’s not like we studied this stuff for 4+ years!
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Wow, the troll brigade is in full force. @Hummie, I only snap back at people that post libelous stuffs about me. Yeah, I met your “partner” Luke in Vegas and guess what, he didn’t bring up to me what he posted here, we we’re actually very cordial, so what was that all about? You guys just wanna stir up stuffs in the forum…like right now…because you see me as a competitor?
Yeah the web is not for me with theory stuffs that don’t relate to my work, I’m an esk8 builder–in real life. I build, test, repeat. And based on what I’ve done, it does work, cause for fuck’s sake…somebody is copying and selling the same thing and people are buying it!
There are things you guys have wrongly assumed here and are still not considering:
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You wrongly assumed that the wind is going towards the face. Like I said, it’s from the side and there’s a big wheel blocking the wind from coming towards the face. That little error could give me pause in believing what you guys say after.
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You base examples on static parts. You guys need to realize that the whole truck is moving, the hanger is moving left and right when carving, speed is not constant, there’s a big wheel there that directs the incoming air, etc. All of this can affect, even for just a little, what all you guys are saying.
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You guys have to realize where this design evolved from. It evolved from motors that are fully wrapped in urethane with no chance of heat leaving from the side:
To one that has a chance for the heat to come out from the side AND side-front:
So, with that said, I’m an moving forward with my design regardless of what you guys say. You guys may have studied stuffs for 4+ years but I have been at this design for a while also. I think I know more about it than any of you guys. Oh by the way @PXSS, I would be wary about your very long wheel adapter, cause we’ve tried that and it broke off easily. What’s my basis…years also of real life prototyping
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These guys are probably not even backers, thats the worst of it all.
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Yes. Definitely not a backer.
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Haha, this thing has veered way off course! 
Okay guys, here’s the plan. These are all info that I know all of you guys are asking about CARVON:
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We are going to produce in-house around 20 sets of CARVON ExoDrives (we’re calling it ExoDrives now to avoid confusion) per week starting right now. This is aside from the 10 sets that we have already produced for this Group Buy.
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10 sets of those 20 sets will go towards building 10 EXO Pros for the Indiegogo Backers per week. The rest will go towards current retail sales of either the drive by itself or the complete board.
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If you guys want to get on the Direct Drive bandwagon now, you can buy the ExoDrive now and you will get it after a week if you live in the continental USA. That is 100% guaranteed. I know it doesn’t mean much considering all the delays, but this time, I’m the manufacturer and we’re doing mass production.
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This current GB will ship Monday. I want to anodize the new Wheel Adapters to black. I hate shiny things. The ExoDrive is also being offered for a limited time only, so you guys better get it before we really start concentrating on completes.
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If you notice at our exoboards website, we also have the regular EXO which, as you may have noticed, is based on Meepo, Wowgo, etc. design. This will be our entry-level board that is meant to compete with those brands and will be made in China.
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Stay tuned for update on EVOs, which is a bit harder board to finish.
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Yeah you really need to get on those EVO update, those people feel so left out. Have Dave contact me if anything else needs to be transported on weekends. See you Sunday 9am at Philz?
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The EXO PRO is with the new wheel adapter or it’s in option?
I know, VESC-based board for the mass market is hard. I’m designing to make it more user-friendly. See you Sunday!
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It’s an option. Really don’t need the new adapters if you’re going to use current esc of EXO Pro. But if you’re thinking you want to connect the motors to VESC or Focbox in the future, I’d advice to opt for the new wheel adapters.