macribs
10 MW
- Joined
- Jul 22, 2014
- Messages
- 3,702
Yeah I like it all but the fairing, fairing kind of got me thinking 
28,000 watt Motoped with 3kwh of nano-tech
- Thread starter recumpence
- Start date
recumpence
1 GW
Well, it looked freaking UGLY without any kind of fairing. Believe it or not, this was the best looking one I found (so far).
Matt
Matt
litespeed
100 kW
That looks perfect with the fairing....keep it!
Tom
Tom
did you had it already on a scale?
recumpence
1 GW
Nope, I haven't weighted it yet. It will be heavy, though. The Motoped is heavy and I have 2kwh of lipo on board......
Matt
Matt
macribs
10 MW
- Joined
- Jul 22, 2014
- Messages
- 3,702
You must be sure to do a serious speed test as soon as you start riding. This is a bad ass monster motoped.
I wonder what kind of acceleration you get, possible for you to do acceleration test via GPS?
Then we could see 0-30mph, 0-50mph, and 0-60mph.
Are we talking sport bike 600 cc fast acceleration?
I wonder what kind of acceleration you get, possible for you to do acceleration test via GPS?
Then we could see 0-30mph, 0-50mph, and 0-60mph.
Are we talking sport bike 600 cc fast acceleration?
recumpence
1 GW
If I can somehow keep the front end down.......
Matt
Matt
oatnet
1 MW
recumpence said:
Looks great, Matt!
recumpence
1 GW
Pedalling will only be good for about 10mph or so.
Matt
Matt
madm3chanic
100 W
personally i really like the front fender- i think it makes this beast look like one of those dakar enduro bikes. this project is really starting to look fantastic!
recumpence
1 GW
Sorry I have been side tracked on my black bike lately.
Today I put a few hours into the Motoped. I finished all welding and plasma cutting. I completely disassembled the bike and all parts are at the powder coater. I also purchased a couple large carbon fiber panels for battery box covers.
Side note, whoever speced the jack shaft to be a press fit into the bearings should be shot in the head! What moron press fits a shaft through a carrier that has two sprockets (that will need replacing at some point)? I mean, SERIOUSLY! I spent a HUGE amount of time removing that freaking shaft so the swing arm could be coated. Once I got the shaft out I spun it in the lathe and held fine grit sand paper to it to shine off a tiny amount of material. Now the shaft is a smooth fit through the bearings and carrier.
Motoped owners beware (if you ever want to remove the jackshaft)......
Matt
Today I put a few hours into the Motoped. I finished all welding and plasma cutting. I completely disassembled the bike and all parts are at the powder coater. I also purchased a couple large carbon fiber panels for battery box covers.
Side note, whoever speced the jack shaft to be a press fit into the bearings should be shot in the head! What moron press fits a shaft through a carrier that has two sprockets (that will need replacing at some point)? I mean, SERIOUSLY! I spent a HUGE amount of time removing that freaking shaft so the swing arm could be coated. Once I got the shaft out I spun it in the lathe and held fine grit sand paper to it to shine off a tiny amount of material. Now the shaft is a smooth fit through the bearings and carrier.
Motoped owners beware (if you ever want to remove the jackshaft)......
Matt
Perhaps I have misunderstood your description, but if the bearings have an inner race then they should be an interference fit (or otherwise locked) on a rotating shaft in order to prevent bearing failure. Design-for-manufacture greatly prioritises speed of initial assembly with servicing being a relatively minor concern. For that there is probably a dedicated pusher or puller tool that makes the task a doddle for a well-equipped service centre, but not so for the average DIY mechanic.
recumpence
1 GW
Understood.Punx0r said:
This is an extremely tight interference fit! Too tight.
recumpence
1 GW
Here is the finished battery pack.
It consists of a TIG welded 1/8 inch thick (3mm) 6061 box with carbon fiber side panels and is powder coated white. It has 12S-64ah of Nano-Tech Lipo. This is the biggest pack I have ever made. It is nearly 3kwh (roughly 2.4kwh of useable capacity). Odds are I will be using 2kwh for most rides. The pack will see the occasional [very short] burst of 400 amps [maybe 1/2 second burst]. There are 8 runs of 10 gauge positive and 8 runs of 10 gauge negative inside the box running to each terminal. I will use 4 gauge from the terminals to the controllers in the "Tank" that will be mounted above this box.
You will notice the panel with the terminals is not carbon. It is made of G10. That is because carbon fiber is conductive. You will also notice the white plastic cap over the positive terminal. That is to prevent shorts when moving the pack around. I will be coating the exposed portions of each terminal with Plasti-Dip.
The bike is about 12 hours of labor away from completion!
Matt
It consists of a TIG welded 1/8 inch thick (3mm) 6061 box with carbon fiber side panels and is powder coated white. It has 12S-64ah of Nano-Tech Lipo. This is the biggest pack I have ever made. It is nearly 3kwh (roughly 2.4kwh of useable capacity). Odds are I will be using 2kwh for most rides. The pack will see the occasional [very short] burst of 400 amps [maybe 1/2 second burst]. There are 8 runs of 10 gauge positive and 8 runs of 10 gauge negative inside the box running to each terminal. I will use 4 gauge from the terminals to the controllers in the "Tank" that will be mounted above this box.
You will notice the panel with the terminals is not carbon. It is made of G10. That is because carbon fiber is conductive. You will also notice the white plastic cap over the positive terminal. That is to prevent shorts when moving the pack around. I will be coating the exposed portions of each terminal with Plasti-Dip.
The bike is about 12 hours of labor away from completion!
Matt
Attachments
kfong
100 kW
Great job. Looks like you added new support to the frame for the pack.
recumpence
1 GW
Yes, I added bosses on the upper frame backbone and a forward protruding lower mount welded to the frame near the bottom bracket. The battery box is a stressed member.kfong said:
Matt
recumpence
1 GW
Final assembly has begun.
Here the bike sits with the battery box mounted, the charger under the seat in the "Muffler" box and the fake tank [controller and electronics housing].
I bought a plastic kit containing rear side panels (much better looking with them than without) and black "Radiator" shrouds. I have to drill and tap holes for the radiator shrouds to make them permanent. I just taped one in place to get an idea of the look before I start drilling and tapping holes.
The bike is turning out far better than I ever thought it would. I know it will be absolutely insane to ride. So, I wanted to make sure the look matched the performance. It is looking so good I am hesitant to get it dirty. :wink:
The work that is left is fabricating the carbon fiber tank top plate, some minor wiring inside the tank, mounting the charger plug receptacle, remounting the motors, and running all wiring and cables. I bought some cool heavy duty cable retainers for this purpose.
Oh, I need to find a car audio shop to pick up some 4 gauge wire. I need a couple feet of red and a foot of black for this bike and a little more for my other bike. All the shops around here are out of business. So, I may have to order some online. If anyone lives in northern illinois and has some to part with, let me know.
Matt
Here the bike sits with the battery box mounted, the charger under the seat in the "Muffler" box and the fake tank [controller and electronics housing].
I bought a plastic kit containing rear side panels (much better looking with them than without) and black "Radiator" shrouds. I have to drill and tap holes for the radiator shrouds to make them permanent. I just taped one in place to get an idea of the look before I start drilling and tapping holes.
The bike is turning out far better than I ever thought it would. I know it will be absolutely insane to ride. So, I wanted to make sure the look matched the performance. It is looking so good I am hesitant to get it dirty. :wink:
The work that is left is fabricating the carbon fiber tank top plate, some minor wiring inside the tank, mounting the charger plug receptacle, remounting the motors, and running all wiring and cables. I bought some cool heavy duty cable retainers for this purpose.
Oh, I need to find a car audio shop to pick up some 4 gauge wire. I need a couple feet of red and a foot of black for this bike and a little more for my other bike. All the shops around here are out of business. So, I may have to order some online. If anyone lives in northern illinois and has some to part with, let me know.
Matt
Attachments
litespeed
100 kW
Looks excellent. Have you tried a welding supply for the 4g?
Tom
Tom
cal3thousand
10 MW
I'm always impressed by your work but this is absolute tits!
Ecobogan
100 W
macribs said:
That would indeed be an interesting drag race, by the sounds of it and under 100m my money would be on the motoped.
Get this weapon running Matt!! I'm 9/10's set on another 4t for mine, Uber keen to see this one up and rocking
recumpence
1 GW
This bike is being built with established "I know this will work" systems and the entire bike is being built with a higher level of durability than I have ever built. The twin motor drive is an established system, the battery pack is familiar but twice the size of anything ever built before. The Motoped itself is more rugged than any bike I have yet built. So, I am confident it will not only be insanely powerful, but very reliable as well.
We shall see.
Matt
We shall see.
Matt
Similar threads
