I just built a test rig out of velcro and a 40" brad edwards gravity

ESK8 Builds
9

i should try and burn up that single too.

i need a BT logger for this rig.

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This is your best build yet

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I use heavy duty Velcro on lots of my projects, its an underrated tool and seriously tough. It held my enclosure to my mountain board with ease and as a bonus isolates vibration.

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It should be dry enough when i get home to run this board down the road. Setup was really easy using VESC tool with this ESC. I was expecting it to complain about firmware or some stupid shit, but it just worked. We were trying to do burnouts on the dusty garage floor yesterday while it was raining.

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Bookmarked, I will be back hourly until either that flipsky vesc is immolated or you are.

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My report on the FlipSky is as follows:

THE GOOD:

  • its running the latest firmware, 3.40, which is excellent.
  • Works with VESC-Tool right out of the box with no issues.
  • can be flashed back to 2.18 easily to work with BLDC-Tool if you prefer the older stuff
  • integrated can bus connection is really nice and saves time
  • works well in both FOC and BLDC mode when it does work
  • supports multiple control schemes and has all the needed ports to take advantage of them
  • small, almost perfect form factor. I really, really like the size.

THE BAD:

  • there is a hardware issue that leads to complete power loss during hard acceleration and hard braking. There is little that can be done in the settings to mitigate this.
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15

on the other hand… we have the Unity which is what i’m testing now. Its kind of fucking amazing. Everything is… well… dreamy and perfect. I don’t know how else to describe it.

For example, i ran motor detection on a shorted fucked up motor:

The Unity is perfectly fine, in fact i ran it around the block a half dozen times, hitting the accelerator hard and braking hard too. Then for more fun, i unplugged one phase lead and rode it some more. Sounded like shit and went all quirky but nothing bad happened.

Next we’re going to light it on fire and beat it with hammers.

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16

Which flipsky vesc r you talking about? 6.6 or the 4.20

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Sorry, i should have been specific. Its the one i mentioned earlier in the thread, the FSESC4.20 Dual 100A

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Hoping these won’t be happening with the 6.6 flipskys. I read that @mmaner was also testing these fsescs but not sure which of them he’s testing on

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This one. He’s noticing the same problems.

We also tested the 6.6 and found it to have a shitty power switch.

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20

Ah the old lightitonfireandbeatitwithhammers Test

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21

Does it run into the sudden shut offs as well on the 6.6? I plan on using the DieBieMS with them and power switch connected to the BMS shouldn’t be a an issue I hope

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Id like to see a video of this :rofl:

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no not at all. The only issues were with the power switches themselves. Jakes’ running the 6.6s right now at 12S and they’re fine. We lack a 13S pack at the moment or they would be on that.

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Awesome. Thanks @longhairedboy! Good to know they’ve been thoroughly torture tested. Gives me some peace of mind.

Have you done said, lightonfirebeatwithhammers test? Id be afraid to try that with my dual 6.6s lol

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I sent FlipSky a full report on the FSESC4.20 100Amp and after telling them everything they got right i told them about the cutouts.

I let them know that i’m pretty sure the issue is the hardware and even when using much lower settings than we do on focboxes and other VESCs we were still getting cutouts. they immediately blamed my battery pack and said it was probably too weak. I LOLed so hard and sent them a pick of the test rig AGAIN.

weak batteries my ass… These Tattus ain’t whistlin’ Dixie, motherfuckers. I don’t have anything at all between them and the ESC either because the whole point is to know what the ESC is doing, not the eswitch or BMS or whatever.

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26

So unity > focboxes ?

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Keep in mind that while you’re semi sound of mind and reasonably smart (I’m working hard here) they do deal with a whole whack of really stupid people on a daily basis, not helped further by the Xenophobia, which is similar to how we feel about them.

They probably have canned responses for people and 80% of the time the end user is actually trying to run these things on 102 watch batteries in series.

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Some******