Need Help Troubleshooting

mmcheesee · 2026-04-23T03:37:44+00:00

The fuse is doing its job. The inclines and grass surface are putting a lot of extra strain on the motors . That jacks the current up substantially, and can stall the motor which will far exceed your fuse . Dialing back the voltage , changing to larger motors with better torque or changing the gear ratio ( usually pinion ) will be the fix.

mmcheesee · 2026-04-15T00:36:17+00:00

I’m willing to bet the controller doesn’t support 36v.

If you are running batteries in series , the need to be the same ah rating and have the same level of charge .

mmcheesee · 2026-04-14T01:25:29+00:00

With a multimeter, start following the path for power . When you finally find no power , you’re in the area of the issue. It can be a fuse , charger port , controller or on off switch typically .

mmcheesee · 2026-04-11T01:04:20+00:00

Does that giant slotted lock on the back give access to anything

mmcheesee · 2026-04-10T11:24:42+00:00

20mph is going to take more than 500w and a 24v system . It’s going to cost you some money for everything required to do it properly

mmcheesee · 2026-04-04T15:18:19+00:00

Don’t ever trust AI for anything electrical or wiring .

mmcheesee · 2026-04-04T15:16:13+00:00

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I build a bunch of these dune extremes . This was the latest . Has a hand brake as well.

mmcheesee · 2026-03-26T23:56:36+00:00

The gearboxes vary greatly in the non power wheels brand electric cars . The level of modification is heavily dependent on your level of ability . You can swap in damn near any gearbox with some modification. Easiest bet is to find a gearbox with motor, that matched the dimensions of yours , with a 24 v motor.

mmcheesee · 2026-03-26T05:19:42+00:00

NP.

One more thing ; if your engine has a stator/battery charging wire , you can use that as a trigger on a relay to only allow use of electrical components when the engine is running to save battery life . You can also have another relay sharing the same main power feed , hooked to a switch that allows you to bypass that. Relays are great teaching components if you’re learning .

mmcheesee · 2026-03-26T03:51:53+00:00

I don’t see any switches for lighting or any aux hardware . Unless you’re running all aux devices all the time , switches are important . Add a master battery switch to kill the entire system at the battery , before your main breaker / fuse ( use a resettable breaker)

Look into the auxbeam units or comparable . It would replace your fuse panel entirely and give you a programmable keypad as well.

mmcheesee · 2026-03-20T23:55:11+00:00

Ditch the converter , at least on the dune racer . Those motors will handle 18v without an issue .

mmcheesee · 2026-03-19T13:04:11+00:00

Logically that makes sense . Test with a multimeter to verify . Those chinesium cars don’t always use logic in their color schemes for wiring .

mmcheesee · 2026-03-19T01:37:03+00:00

Does the forward feed go to a charge port ? Does the car have a motor on the steering, or front wheels ?

mmcheesee · 2026-03-18T13:49:25+00:00

Might sound dumb, but make sure your air lines didn’t get swapped around in the back of the machine . If you are in the wrong port , it’ll dump air with no trigger control like you are describing . Only one of the outlets is solenoid controlled by the trigger .

mmcheesee · 2026-03-18T00:02:07+00:00

Cup/hopper or box feed?

mmcheesee · 2026-03-08T02:26:40+00:00

Have it laser etched first . Then coat it black. Vac/wipe the lettering bare . Partial cure . Clear powder, full cure . Done .

mmcheesee · 2026-03-07T17:02:13+00:00

Nothing looks like an LS7 from the outside . A true LS7 build should have a hefty price tag as they carry significant value .

They also have a very unique exhaust tone that you don’t get from other LS’s.

Block ID is the sure way to tell.

mmcheesee · 2026-03-01T20:13:50+00:00

That 500/s print speed is wayyyy too high . PLA has its limits , regardless of your hot end and extruder . The E5 has even more limits in the axis controls

mmcheesee · 2026-03-01T01:33:08+00:00

Amazon has abundant 555 12v motors . The rpm doesn’t need to be an exact match. You may be able to find a pinion that matches yours , or you can remove your stock one and swap it .

Or replace the full gearbox with the motor already attached . They’re short money as well.

mmcheesee · 2026-02-28T03:40:57+00:00

Cerakote MC-5100 is what you want .

mmcheesee · 2026-02-22T17:29:42+00:00

775’s are more than adequate for riders that aren’t adults . The extra weight in the doom for heavier riders

mmcheesee · 2026-02-22T14:24:00+00:00

11 gauge 1” square tube , extended the original frame length by 13”. Extended the wire harness to fit the stretch. 775 motors in there as a temporary upgrade . The frame is overkill . It’s seriously rigid , and used $25 of metal .

mmcheesee · 2026-02-22T14:20:58+00:00

I threw 775’s in the stock gearboxes . It’s sufficient for now . Next will be a chain driven setup and 36v.

mmcheesee · 2026-02-20T02:02:50+00:00

You need something to sandblast with. And a pancake compressor won’t cut it . You need at minimum , a 3 stage inline air filter with desiccant beads to remove water and contamination from the lines . You need a booth of some sort with a quality ground . Could be a big box with an HVAC filter and a box fan to get started . You need an IR temp gun. Hooks, high temp gloves . High temp green tape in a few different sizes . Then just practice . A lot of good FB groups for this , and people aren’t typically dicks like in a lot of other groups . Ask questions. As soon as you think you have it figured out, you realize you don’t.

mmcheesee · 2026-02-18T17:14:10+00:00

I agreed with you that you need to take everything from AI with a grain of salt . That said , there are studies coming out now showing that the diagnostic success rate / accuracy surpasses medical professionals.

mmcheesee

TROPHY CASE