Search found 271 matches

by garolittle
Jun 09 2019 9:29am
Forum: Large EV General Discussion
Topic: Go Kart Update
Replies: 66
Views: 4746

Re: Go Kart Update

Dude you are going to get a job offer from Tesla at some point. :-). Awesome project!
by garolittle
Jun 06 2019 11:24pm
Forum: Large EV General Discussion
Topic: Error Code I can not clear - Curtis Controller 1236
Replies: 15
Views: 306

Re: Error Code I can not clear - Curtis Controller 1236

Got it. Thanks for the quick response. It makes sense now. Thanks
by garolittle
Jun 06 2019 8:32pm
Forum: Large EV General Discussion
Topic: Error Code I can not clear - Curtis Controller 1236
Replies: 15
Views: 306

Re: Error Code I can not clear - Curtis Controller 1236

Yes, the reverse switch wiring doesn't look like the diagram. The middle wire on the switch goes to pack voltage (J1-1) in the diagram. I appreciate all of the great responses. I want to make sure I do this right so please see photo below. Currently, J1-25 (Red/Blue wire) is connected to the the mi...
by garolittle
Jun 06 2019 7:25pm
Forum: Large EV General Discussion
Topic: Error Code I can not clear - Curtis Controller 1236
Replies: 15
Views: 306

Re: Error Code I can not clear - Curtis Controller 1236

fechter wrote:
Jun 06 2019 8:27am
Yes, the reverse switch wiring doesn't look like the diagram. The middle wire on the switch goes to pack voltage (J1-1) in the diagram.

Where does the orange wire go?
Thanks for all the great responses. :D The orange wire goes to the throttle (Curtis PB-6 "Pot Box" Throttle).
by garolittle
Jun 05 2019 6:31pm
Forum: Large EV General Discussion
Topic: Error Code I can not clear - Curtis Controller 1236
Replies: 15
Views: 306

Re: Error Code I can not clear - Curtis Controller 1236

major wrote:
Jun 04 2019 6:28pm
Looks like J1-1 needs to be wired to center of SPDT switch, not 12V.
Hey sir. Thanks for your response. What does SPDT mean? Thanks
by garolittle
Jun 04 2019 11:47pm
Forum: Large EV General Discussion
Topic: Error Code I can not clear - Curtis Controller 1236
Replies: 15
Views: 306

Re: Error Code I can not clear - Curtis Controller 1236

I appreciate all the great responses so far. I’m going to try a few things to see what happens. I will post the results as soon as I know the answer. Thanks again for all the help. This form is great. Gary.
by garolittle
Jun 04 2019 6:10pm
Forum: Large EV General Discussion
Topic: Error Code I can not clear - Curtis Controller 1236
Replies: 15
Views: 306

Re: Error Code I can not clear - Curtis Controller 1236

Where do the other wires go? My take on the error is the 12v supply is getting loaded down too much from something. Can you post a wiring diagram? Ok. Voltage when connected = .08V Voltage when disconnected = 12.67V The orange wire is connected to the Curtis Throttle Box (PB-6). The yellow wire is ...
by garolittle
Jun 04 2019 11:58am
Forum: Battery Technology
Topic: Spot Welding Copper Strips to 18650 Battery Cells
Replies: 213
Views: 32458

Re: Spot Welding Copper Strips to 18650 Battery Cells

Great discussion. Very interesting ideas. I am still trying to convince my wife that the $10k spot welder would be a great Fathers Day gift. No luck yet. :-)
by garolittle
Jun 04 2019 10:55am
Forum: Large EV General Discussion
Topic: Error Code I can not clear - Curtis Controller 1236
Replies: 15
Views: 306

Re: Error Code I can not clear - Curtis Controller 1236

My apologies. I should have measured the voltage using “B-“ on the controller. I will do so tonight and post the results. Thanks.
by garolittle
Jun 04 2019 6:25am
Forum: Large EV General Discussion
Topic: Error Code I can not clear - Curtis Controller 1236
Replies: 15
Views: 306

Re: Error Code I can not clear - Curtis Controller 1236

What's the voltage at the pin, with and without it connected? Thanks. Really appreciate the response. The voltage is essentially 0 when connected and just over 12 1/2 Volts when disconnected. Any ideas you can offer a much appreciated. Thanks again. E3219600-D7B6-47CB-8C8E-67D371861214.jpeg EB87D55...
by garolittle
Jun 03 2019 8:48pm
Forum: Large EV General Discussion
Topic: Error Code I can not clear - Curtis Controller 1236
Replies: 15
Views: 306

Error Code I can not clear - Curtis Controller 1236

Hello. I am using the Curtis Controller 1236 on my electric go kart along with a 48V AC-9 from HPEVS.com. All was working will until a few days ago. There are 35 wire ("Pin") slots which connect to the curtis controller. I have normally have Pin #25 (Red/Blue wire) connected to the “forward/reverse ...
by garolittle
Jun 01 2019 1:16pm
Forum: Battery Technology
Topic: Spot Welding Copper Strips to 18650 Battery Cells
Replies: 213
Views: 32458

Re: Spot Welding Copper Strips to 18650 Battery Cells

I remember that post. Very interesting concept.
by garolittle
Jun 01 2019 11:01am
Forum: Battery Technology
Topic: Spot Welding Copper Strips to 18650 Battery Cells
Replies: 213
Views: 32458

Re: Spot Welding Copper Strips to 18650 Battery Cells

Possible “game changer”. Really cool concept.
by garolittle
May 30 2019 10:23pm
Forum: E-Bike General Discussion
Topic: Pictures of 70 mph E Kart
Replies: 12
Views: 576

Re: Pictures of 70 mph E Kart

Some light testing at a local track last Sunday. Will push the limits soon and post the data.

https://youtu.be/pyun2y1ikN4
by garolittle
May 30 2019 10:09pm
Forum: E-Bike General Discussion
Topic: Pictures of 70 mph E Kart
Replies: 12
Views: 576

Re: Pictures of 70 mph E Kart

I really like those displays. Let us know how it works for you. Also, another way I have decided to save weight is by eating fewer hamburgers. : - ) Not exactly and "engineering solution" but it is guaranteed to work if I stick to my plan. :o
by garolittle
May 27 2019 10:06pm
Forum: E-Bike General Discussion
Topic: Pictures of 70 mph E Kart
Replies: 12
Views: 576

Re: Pictures of 70 mph E Kart

Vikingimike01 wrote:
May 23 2019 4:14am
Nice
Thanks sir. Really appreciate the comment.
by garolittle
May 26 2019 10:38pm
Forum: E-Bike General Discussion
Topic: Pictures of 70 mph E Kart
Replies: 12
Views: 576

Re: Pictures of 70 mph E Kart

Thanks sir. The estimated weight is 240 pounds (109 kg) without a driver. I purchased the gauge from Amazon.com using the following link:

Battery Capacity Fuel Gauge Meter... https://www.amazon.com/dp/B07KRSL5F7?re ... b_ap_share
by garolittle
May 25 2019 12:55am
Forum: E-Bike General Discussion
Topic: Pictures of 70 mph E Kart
Replies: 12
Views: 576

Re: Pictures of 70 mph E Kart

Vikingimike01 wrote:
May 23 2019 4:14am
Nice
Thanks fun but challenging project.
by garolittle
May 25 2019 12:55am
Forum: E-Bike General Discussion
Topic: Pictures of 70 mph E Kart
Replies: 12
Views: 576

Re: Pictures of 70 mph E Kart

999zip999 wrote:
May 23 2019 2:52pm
One problem. Those tires look new ???
Ha! Not for long. Track testing day is Sunday. They will not be new after that. LOL :o
by garolittle
May 20 2019 9:38am
Forum: E-Bike General Discussion
Topic: Pictures of 70 mph E Kart
Replies: 12
Views: 576

Pictures of 70 mph E Kart

No body panels yet but “ATRON” is almost ready to roll. Special thanks to all of my ES friends who have offered support and ideas. Check us out on Facebook.... @VenomKarts Specs: 48-V HPEV A/C motor 600 Amp Curtis Controller 18650 battery pack Custom frame from Robertskartshop.com 25,000 maximum wat...
by garolittle
May 07 2019 7:31pm
Forum: Large EV General Discussion
Topic: Go Kart Update
Replies: 66
Views: 4746

Re: Go Kart Update

Also, what gear ratio were you using on those track runs? What is the diameter or the rear tires? Really great project and thanks for sharing it with us. Gary
by garolittle
May 07 2019 7:30pm
Forum: Large EV General Discussion
Topic: Go Kart Update
Replies: 66
Views: 4746

Re: Go Kart Update

AWESOME. That thing is a rocket. Sorry I have been out of touch lately. How did the motor and battery pack hold up? Any heat issues? More video please. :bigthumb: Really cool. Gary
by garolittle
Apr 23 2019 9:38pm
Forum: Large EV General Discussion
Topic: Go Kart Update
Replies: 66
Views: 4746

Re: Go Kart Update

Upperfoot wrote:
Apr 23 2019 9:13am
garolittle wrote:
Apr 22 2019 7:25pm
Really looks awesome. Keep sending pictures. I can not get enough!
Thanks mate, haven't even taken it out of the shed yet, can't wait for its first test run on the 4th
Awesome. Keep us posted on your progress!
by garolittle
Apr 22 2019 7:25pm
Forum: Large EV General Discussion
Topic: Go Kart Update
Replies: 66
Views: 4746

Re: Go Kart Update

Really looks awesome. Keep sending pictures. I can not get enough!
by garolittle
Apr 21 2019 10:44pm
Forum: Battery Technology
Topic: Spot Welding Copper Strips to 18650 Battery Cells
Replies: 213
Views: 32458

Re: Spot Welding Copper Strips to 18650 Battery Cells

So what would happen if you put a hole in the copper so that one probe goes directly to the battery and the other probe on the copper tab... Interesting idea. I suspect "spinningmagnets" is your best bet for an accurate answer to this question. My suspicion is that the copper will still disperse th...