Sweetenough
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Post by Sweetenough on Dec 2, 2020 4:20:16 GMT -5
Feel a little bit sorry for the horses though. Our cat does not like my jet hobby either... or my girlfriend for that matter. Maybe you should ask for the sheep to be returned!! Hahaha The sheeps will most probably return next spring But I guess the horses will stay as well I need more land....
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Sweetenough
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Post by Sweetenough on Dec 2, 2020 4:39:45 GMT -5
Its a good point Thomas, I have not tried it yet but will be doing something similar with the Kart Oil Pump. For single pump control it could be a great way of doing it, but for controlling multiple pumps I think a custom PCB is a neater solution. Look forward to seeing your results! Cheers Scott Your PCB's is always a neater solution Scott, my PCB's is not Was actually thinking about making a "modular" PWM control unit and the just add one when ever needed. Then it occurred to my that a RC ESC probably is that modular solution, pre-engineered Waiting for delivery from China, will update when tested. Kind Regards Thomas
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Sweetenough
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Posts: 121
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Post by Sweetenough on Dec 15, 2020 10:07:34 GMT -5
Hi Guys, A couple of RC ESC controllers has arrived. First tests performed with a servo tester and against 2pc 100W light bulbs in series. Was looking promising so next step was to connect the ESC an Arduino to control the ESC. Then... I accidently made short circuit and burned the first ESC. Then.... a test against a bosch 044 pump was made. Seemed to work fine, the pump screamed really good at 18VDC. Then finally a test against my AB pump (AEM400) was made. Then the other ESC went faulty without any obvious reasson and delivered 24VDC to the pump. And since I a have no more ESC to burn the tests was stopped. Give up? Or continue? Ordered an other model of ESC today so for now it is just wait for more components to burn :-) Kind Regards Thomas
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slittlewing
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Posts: 458
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Post by slittlewing on Dec 15, 2020 14:56:46 GMT -5
Well done for trying at least, what current and voltage were they rated for? I think itโs part and parcel of the development process, I have been through the same loop trying out various Chinese spark/ignition modules!
Cheers Scott
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Sweetenough
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Posts: 121
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Post by Sweetenough on Dec 16, 2020 8:34:26 GMT -5
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Post by wannabebuilderuk on Dec 16, 2020 10:46:48 GMT -5
Well done for trying at least, what current and voltage were they rated for? I think itโs part and parcel of the development process, I have been through the same loop trying out various Chinese spark/ignition modules! Cheers Scott Scott you referring to a reliable wet fuel ignition setup?
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slittlewing
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Post by slittlewing on Dec 16, 2020 14:33:14 GMT -5
100A continuous, surely should be fine with 10amp 044 haha!!
Thatโs right Ben, I was referring to lots of experiments with Chinese spark units, spark gaps, capacitors diodes etc.
Cheers
Scott
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Post by wannabebuilderuk on Dec 16, 2020 18:31:47 GMT -5
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Sweetenough
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Post by Sweetenough on Dec 21, 2020 7:18:48 GMT -5
Haha, missed the spark part when I read it
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Sweetenough
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Posts: 121
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Post by Sweetenough on Jan 25, 2021 7:57:30 GMT -5
Finally my new Chinese RC ESC arrived! Ordered one HC480A and one HC960A but only the HC480 was delivered after really loooong time. Connected it to the Arduino and managed to get control over it. Tested first agains 100W lightbulbs, worked fine. Then tested against my AEM400 AB fuel pump, nothing happens when trying to run it. No output to the pump no matter what control signal I give. So I guess the ESC does somekind of check of what is connected and is not happy with the AEM400 pump motor. Then I made a test against a bosch 044 pump and that worked fine, pump is really screaming at 18VDC. With no back pressure, just circulating fuel the current draw to the pump was about 10-11A and the ESC was not generating any heat. So the concept is obviously working but unfortnuattly not for the intended pump. For now I think I give up further attempts with RC ESC. So I think it is time to take the first baby steps in PCB design and design a small PCB for a PWM power module to connect to an Arduino. Scott, if you read this. Do you have any updates on the design of the mosfet/scotty diodes on your V2 board that you could share? Kind Regards Thomas
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slittlewing
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Posts: 458
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Post by slittlewing on Jan 27, 2021 16:20:41 GMT -5
I look forward to your new PCB progress as we discussed Thomas!!
๐๐๐
Itโs good that you were able to control your pump with the ESC also, this provides a nice easy method for many people.
Cheers Scott
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Sweetenough
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Post by Sweetenough on Feb 3, 2021 3:59:18 GMT -5
Did some further testing and found a relay that I forgott about :-) So the ESC is now able to run the AEM400 pump as well, sorry for the confusion. But inspired by Scotts beautiful PCBs I am now also taking my first baby steps in PCB design. Got good help from a local friend as well, working on a design for a "PWM module" that is going to be controlled by arduino. Thanks for the support Scott!
Kind Regards Thomas
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Sweetenough
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Post by Sweetenough on Feb 23, 2021 4:12:21 GMT -5
Planing to go to the speedweekend substitut next weekend, if the ice is ok. Fingers crossed. landracing.se/vi-har-en-plan/Have finished the new lube oil control box, PWM control of pressure pump, cooler circulation pump and cooler fans. Also include a on/off heater control for the tank. Still need to tidy up the installation with some cable ties. To little "billet" on the jetoped so I spent some time in the mill making a casing for the display of the control box. Filling up to cockpit nicely. Also got a logo made by a friends daugther, hope that STP wont sue me With the sticker in place I hope to reach 100km/h on the ice. Got help from friends to build a GPS unit with 40mm LED to be able to monitor the speed while running, include a memory card for post race analyse. Have experimented with PCB design of a PWM module to be controlled by arduino, same friend that helped me with the GPS unit is "all in" to PCB design now. Something to continue with after the test & tune event. Kind Regards Thomas
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Post by wannabebuilderuk on Feb 23, 2021 11:32:34 GMT -5
I love the professional looking instrument cluster with the pen marks for 0-100 ๐
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Post by Johansson on Feb 23, 2021 14:24:32 GMT -5
Awesome work Thomas!
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