I wanted rearrange my VESC and cap wiring because I found out on my other builds that short connections and good ESR can keep your ESC cooler and improve your reliability. To keep wires short, I had to stack the PCBs and the caps and just filled the remaining space with more caps…
No matter how many caps you add, they won’t help you with voltage sag, but can compensate for the inductance of long battery wires, which would induce high voltage spikes when switching at high currents.
Haha this board is the absolutely awesome Madmax Killer Vehicle… watching the video and seeing myself strapped to the monster brings a big fat grin to my face… pulling this 11KW was incredible … also whats amazing is the damping properties of this FAT tires, compared to my 8inch racer it feels so much comfortable even on super rough terrain
Thanks for the reply and very detailed responce. Sweet approach you have taken… how much rsnge are you getting out of 30 ah? Also did you choose tour capacitence baced on any math or just kind of as many as you could get to fit ?
@Duffman. I am in the process of building my cap bsnk for my vesc… what capacitors did you end up going with could you maybe supply a link it sounds like youve found some good ones… also when deciding how many to use and what uf did you calculate in amperage or did you run with the 220 uf per vesc oer 4 inch rule?
For my other board which is also running VESCs on 120A with 50cm battery wires I just replaced the 2x3 stock caps. On this build I simply had the space so I went with 4x7 caps.
Range depends highly on terrain. When driving and drifting on grass I should get around 20km with 12s30Ah. In loose sand or snow I can burn down the same battery on less than 10km.
I always forgot to show you one little detail, which imo is a big improvement over the stock MBS spring truck system.
Instead of using a spring and an egg shock (dampa), I’m using an elastomer compression spring to get better / softer steering capabilities and better dampening of speed wobbles.
This is a comparison of the usual spring/damper combination and elastomer springs:
I’m running these in my Monster an in a Trampa/Next crossover board of a friend for more than a year and am totally satisfied with the feeling of the ride.
What a 4WD monster build, wicked man!
Just a question according the elastomer spring. Are the thread inserts included and how’s the feel compared to trampa springs with yellow dampas? Looks very interesting
No, the thread inserts are selfmade, but you don’t have to own a lathe to make some. Just cut a piece of metal to lenght, drill a hole and round the edge…
The hardest part would be to get the elastomer springs, as I don’t know if they sell to private persons…
Each time this thread is commented on I re-look at this pic…
cool build, really tight, from the wiring around the batteries, the seamless integration of the front light, the tire tread, to size, the deck… very slick!
less is more…
This beast may be anything but not lightweight. I tried to build it as light as possible but it weights around 30kg naked and around 40kg with 3 stacks of batteries.
@Cobber: This was just evolution. We started with a MBS Pro 90, a MBS Core 94 a Next Redux and a Trampa Deck, mixed everything up and got my Raceboard, my Monster and my friends Trampenstein (in the picture above)…
Im jealous of the big one
Can you explain how you arranged and connected the cells in your pack?
Makes my vertical configuration with balance connectors look like childs play…
As I’m lazy, I’m just linking to my other buildthread:
I have the same battery ‘dock connector’ on all of my builds which offers the possibility to simply switch batteries quick and easy from board to board or to stack them to the desired capacity.
aha those stackable packs are nifty, I figured you had 18650s under the hood! no wonder the little one rips so much you got some serious amps your workn with
cool build, really tight, from the wiring around the batteries, the seamless integration of the front light, the tire tread, to size, the deck… very slick!
less is more…
