Differences between high end ESC's and cheap ones for Lehner motors?

[dmitry100]

aren't the bus tracks the wires are soldered to made from brass?

anyway, i guess it'd be pointless to try to solder the 2 conductor wires to 1-2 inches of the original 8 gauge if i was to cut them off instead of soldering them off completely... since solder doesn't pass current well? was thinking to maybe connect the strand into each other rand then wrap thin copper wire around it

[dmitry100]

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jeez Look what I found on my LMT 1950 :/ green oxidization on at least 1 of them and the rest look like they're just about to get just as bad

They were all heatshrinked - is this because of flux residue? it hasn't touched water

[CraigP]

Need to put silicone sealant under the heat shrink... heating and cooling cycles pulls water in from the air.

[dmitry100]

But would the flux residue contribute or make it worse though? I think I forgot to clean it after soldering

btw, What kind of silicone sealant would be best to use for something like this.... something like this? https://www.amazon.com/Clear-Electro.../dp/B0063U2RT8

[TRUCKPULL]

[ATTACH=CONFIG]157704[/ATTACH][ATTACH=CONFIG]157705[/ATTACH]

jeez Look what I found on my LMT 1950 :/ green oxidization on at least 1 of them and the rest look like they're just about to get just as bad

They were all heatshrinked - is this because of flux residue? it hasn't touched water

This would never happen with tined wire.

Larry

[jim82]

Try some marine heat shrink

[dmitry100]

Tyler, any idea where I can get props similar to abc's? it appears even propshop has closed down

Or can octura props be modified to 19* or 23* rake?

[StevenBryant]

Tyler, any idea where I can get props similar to abc's? it appears even propshop has closed down

Or can octura props be modified to 19* or 23* rake?

Prop shop are still in business but under a different name Protean Design, you can find them on Facebook.


Sent from my iPhone using Tapatalk

[dmitry100]

Tyler, is it worth replacing the 2x 1200uf caps near the power leads from my Castle edge 200 with 3 smaller ZL caps? Was thinking to keep it and just use an additional 5-6k ZL cap bank

They also have 2x 560uf caps on the opposite end. It's best to have all of them match the cap bank? kind of figured the front ones wouldn't matter that much

[RaceMechaniX]

I think the stock caps are 680uF on the battery wire side and 560uF on the center of the board.
I believe it is worth replacing at minimum all four caps with the appropriate Rubycon ZL caps even if it's just the same rating. For the 8S ICE and EDGE ESC's I would recommend bumping the cap voltage up to 50V if you plan on running them on 8S. If you only plan on 6S and below use the 35V rated caps.

If you are pushing the current limits, I add two additional caps for a total of 6.

You can mix and match brands, but it's best to use all the same voltage.

[ray schrauwen]

Thanks Tyler.

[dmitry100]

It seems they changed the newest Edge 200 8s to 2 caps of 1200uf 35v on battery side. Probably better off with 2 of the 470uf ZL in their place. Thought 3 could fit but seems not.
I could put 2 more on top of them but I figured having long cap leads would defeat the purpose.

For pushing current limits ... is it a good idea to add an additional 5k cap bank on top of the 4 already on board? or are these Castle controllers designed well enough that they don't need that much

[RaceMechaniX]

Castles need good caps, not necessarily a ton of them as long as they are on the board. Using external cap banks reduces the effectiveness considerably compared to the equal amount on board.

[dmitry100]

Btw, I read somewhere about spark resistors can cause problems with castle esc's... Potentially even damage them in some way. Something about it messing with the auto lipo detection. But that seems like something from a long time ago.

I have a bunch of 11k ohm resistors on hand. Think they can still cause issues with the ice/edge 200 8s?

[CraigP]

Btw, I read somewhere about spark resistors can cause problems with castle esc's... Potentially even damage them in some way. Something about it messing with the auto lipo detection. But that seems like something from a long time ago.

I have a bunch of 11k ohm resistors on hand. Think they can still cause issues with the ice/edge 200 8s?

That is way too high! That can definitely cause voltage detection issues, on any ESC. Should be 10-20 Ohm range, 1/2W. Put heat shrink on the resistor. Keep a finger on it when pre-charging. If it gets hots, you got a short or other problem. Should be a very small spark, showing caps are still lively...