Hovercraft B/C

[petermai6655]

Looks like it is available on Amazon Prime for slightly more ($14 and change - look under the additional sellers page) - and you could conceivably have it by Tuesday then.

Yes, I saw that, but when I went to the order confirmation page, it says "Usually ships in 2 to 5 weeks." I did see a 10 Ohm potentiometer, but does that work? Or can someone find a potentiometer that ships faster?

What worked really well for me was the proprietary speed controller for the batteries and motors I use. Normally, this resistor is attatched to a arduino, to allow control via a remote control, but I just didn't use the arduino (it's an IC). Just look around on the webpage for your batteries and see if something will work.

Wait. So an ESC is not an IC? I thought it was.

[LittyWap]

Yes, I saw that, but when I went to the order confirmation page, it says "Usually ships in 2 to 5 weeks." I did see a 10 Ohm potentiometer, but does that work? Or can someone find a potentiometer that ships faster?

What worked really well for me was the proprietary speed controller for the batteries and motors I use. Normally, this resistor is attatched to a arduino, to allow control via a remote control, but I just didn't use the arduino (it's an IC). Just look around on the webpage for your batteries and see if something will work.

Wait. So an ESC is not an IC? I thought it was.

My speed controller is completely mechanical, and is not a Electronic Speed Controller. As long as it doesn't contain a micro-controller or microprocessor, it's not illegal.

[petermai6655]

What worked really well for me was the proprietary speed controller for the batteries and motors I use. Normally, this resistor is attatched to a arduino, to allow control via a remote control, but I just didn't use the arduino (it's an IC). Just look around on the webpage for your batteries and see if something will work.

Wait. So an ESC is not an IC? I thought it was.

My speed controller is completely mechanical, and is not a Electronic Speed Controller. As long as it doesn't contain a micro-controller or microprocessor, it's not illegal.

Oh really? I tried unsuccessfully to make my own speed controller out of a resistor and a MOSFET. How do you do it?

[LittyWap]

Wait. So an ESC is not an IC? I thought it was.

My speed controller is completely mechanical, and is not a Electronic Speed Controller. As long as it doesn't contain a micro-controller or microprocessor, it's not illegal.

Oh really? I tried unsuccessfully to make my own speed controller out of a resistor and a MOSFET. How do you do it?

As stated prior, I just looked around on the webpage for the company that makes my batteries, and modified their remote speed controller by detaching the arduino.

[chalker]

My speed controller is completely mechanical, and is not a Electronic Speed Controller. As long as it doesn't contain a micro-controller or microprocessor, it's not illegal.

Oh really? I tried unsuccessfully to make my own speed controller out of a resistor and a MOSFET. How do you do it?

As stated prior, I just looked around on the webpage for the company that makes my batteries, and modified their remote speed controller by detaching the arduino.

Interesting, but note that your original statement isn't quite correct. You can't use micro-controllers or integrated circuits of any type. Just because you 'detached the arduino' doesn't mean there aren't any integrated circuits still embedded in the speed controller - you need to check for any little black boxe that could be very small in size. While it's not impossible to make a purely mechanical one, I'd be really surprised to hear that a commercially available 'remote speed controller' didn't have any integrated circuits in it.

[LittyWap]

Oh really? I tried unsuccessfully to make my own speed controller out of a resistor and a MOSFET. How do you do it?

As stated prior, I just looked around on the webpage for the company that makes my batteries, and modified their remote speed controller by detaching the arduino.

Interesting, but note that your original statement isn't quite correct. You can't use micro-controllers or integrated circuits of any type. Just because you 'detached the arduino' doesn't mean there aren't any integrated circuits still embedded in the speed controller - you need to check for any little black boxe that could be very small in size. While it's not impossible to make a purely mechanical one, I'd be really surprised to hear that a commercially available 'remote speed controller' didn't have any integrated circuits in it.

I disassembled the device in it's entirety to ensure there weren't any microprocessors or micro controllers. The setup was a wireless arduino that actuated to control a mechanical resistor. The arduino was chock full of the little things, but the resistor, just resistive material and contacts, nothing more.

[chalker]

I disassembled the device in it's entirety to ensure there weren't any microprocessors or micro controllers. The setup was a wireless arduino that actuated to control a mechanical resistor. The arduino was chock full of the little things, but the resistor, just resistive material and contacts, nothing more.

There must be something more to it, since the arduino would have to had a motor or actuator to move the 'mechanical resistor'. Regardless, it sounds like you ended up with just a potentiometer like many other people are using, which isn't truly a 'speed controller'.

Note, I just did a search trying to find the device you are talking about. Is it the NRF24L01 Wireless Motor Speed Control System (https://create.arduino.cc/projecthub/ic ... in1-720073)? If so, the motor drive controller module part of that most definitely has integrated circuits on it and would not be allowed (http://www.icstation.com/dual-bridge-st ... -1381.html)

[LittyWap]

I disassembled the device in it's entirety to ensure there weren't any microprocessors or micro controllers. The setup was a wireless arduino that actuated to control a mechanical resistor. The arduino was chock full of the little things, but the resistor, just resistive material and contacts, nothing more.

There must be something more to it, since the arduino would have to had a motor or actuator to move the 'mechanical resistor'. Regardless, it sounds like you ended up with just a potentiometer like many other people are using, which isn't truly a 'speed controller'.

Note, I just did a search trying to find the device you are talking about. Is it the NRF24L01 Wireless Motor Speed Control System (https://create.arduino.cc/projecthub/ic ... in1-720073)? If so, the motor drive controller module part of that most definitely has integrated circuits on it and would not be allowed (http://www.icstation.com/dual-bridge-st ... -1381.html)

Awww nuts! Sorry for all the confusion! What I thought to be a arduino was actually a servo, sorry to mislead you. To be more specific, a potentiometer is a type of resistor. Once again, sorry for muddying the waters.

[chalker]

Awww nuts! Sorry for all the confusion! What I thought to be a arduino was actually a servo, sorry to mislead you. To be more specific, a potentiometer is a type of resistor. Once again, sorry for muddying the waters.

No big deal. That's why we have discussion boards. Thanks for clarifying.

[petermai6655]

I'm looking at this fan for lifthttp://orionfans.com/media/parts/highst ... BXE10A.pdf but I noticed that the fan is going to use about 4 Amps max. Is that too much for a 3000mah 8.4 volt NiMH? Keep in mind that I am also adding a push motor to the same circuit. (Which is also about 4 amps).Will it damage the battery and will it allow for a lot of testing? Right now I'm not worried about wire gauge, but is there anything else that could be a problem?