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Search: Posts Made By: howardcano
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06-21-2018, 04:21 AM
Replies: 247
Views: 27,303
Posted By howardcano

Fewer turns (or a smaller size with the same...

Fewer turns (or a smaller size with the same number of turns) on the inductor requires more current to generate the same signal level. (It also reduces the Q of the tank.) The devices driving the...
06-15-2018, 12:52 PM
Replies: 133
Views: 9,361
Posted By howardcano

Here's one method: All chargers and batteries...

Here's one method: All chargers and batteries being used for an upcoming race go on a table (or tables) in the tech area. One or more tech inspectors verify that the maximum charge rate is observed....
06-12-2018, 04:13 AM
Replies: 247
Views: 27,303
Posted By howardcano

The jumper positions for the loop amplifier are...

The jumper positions for the loop amplifier are listed here:
https://www.rctech.net/forum/showpost.php?p=12222187&postcount=251
Ceramic capacitors will work fine.
06-11-2018, 02:17 PM
Replies: 12,079
Views: 1,270,425
Posted By howardcano

We've done both on asphalt. The rolling...

We've done both on asphalt.

The rolling starts (for a class using many of the USVTA rules, but with NASTruck bodies) were a kick, and helped prevent pile-ups in the first corner, since a bad start...
06-10-2018, 04:42 AM
Replies: 8
Views: 301
Posted By howardcano

They don't tire out. When they go bad, it's...

They don't tire out. When they go bad, it's nearly always catastrophic.

The problem is almost guaranteed to be something else, just as RC Guy originally said.

FETs don't get "tired".
06-04-2018, 05:22 AM
Replies: 165
Views: 18,489
Posted By howardcano

These lap counting systems use frequencies many...

These lap counting systems use frequencies many orders of magnitude lower than Bluetooth. That's because the reception of the transponder signal is intentionally done in the near field, via...
06-01-2018, 04:31 PM
Replies: 20
Views: 1,016
Posted By howardcano

For ESCs that can have their software changed-...

For ESCs that can have their software changed- which is almost all of them these days- ROAR approves a software version for the ESC. The video states at 1:56 that the version being described is...
06-01-2018, 09:58 AM
Replies: 12,079
Views: 1,270,425
Posted By howardcano

They will rarely be equal, but within a few...

They will rarely be equal, but within a few degrees is good. 7 versus 23 is horrible.
05-30-2018, 09:31 AM
Replies: 117
Views: 22,075
Posted By howardcano

That would explain the two out-of-box failures I...

That would explain the two out-of-box failures I had. But then there's also the one I bought used, and it's on its third year of use.
05-23-2018, 12:31 PM
Replies: 12,079
Views: 1,270,425
Posted By howardcano

Considering that ROAR rules specify a minimum...

Considering that ROAR rules specify a minimum terminal resistance of 101 milliohms at 25C for 25.5T motors, you have either a bunch of naughty motors, or your MMS is very inaccurate. I suspect the...
05-19-2018, 06:31 PM
Replies: 2
Views: 149
Posted By howardcano

That would require re-binding of the receiver to...

That would require re-binding of the receiver to the transmitter whenever the model was changed. It would be easier to just adjust the throttle travel.
05-15-2018, 12:03 PM
Replies: 12,079
Views: 1,270,425
Posted By howardcano

It would be cool if the VXL version were belted!

It would be cool if the VXL version were belted!
05-14-2018, 05:15 PM
Replies: 34
Views: 1,476
Posted By howardcano

Will you need a heat sink, or is this just to...

Will you need a heat sink, or is this just to handle higher-current peaks?
05-14-2018, 05:07 PM
Replies: 12,079
Views: 1,270,425
Posted By howardcano

Can you provide a part number or link?

Can you provide a part number or link?
05-10-2018, 05:16 AM
Replies: 12,079
Views: 1,270,425
Posted By howardcano

Do what makes you happy. However, more of a...

Do what makes you happy. However, more of a quantity that is unknown is still unknown. Regardless of timing setting, current draw, and RPM, there is no way to know if the torque of one motor is...
05-09-2018, 03:55 PM
Replies: 12,079
Views: 1,270,425
Posted By howardcano

There is insufficient information to make that...

There is insufficient information to make that determination. Torque measurements are also required, just like Old Dude said.
05-08-2018, 04:57 PM
Replies: 4,442
Important: Buy/Sell/Trade
Views: 458,760
Posted By howardcano

Miscellaneous For Sale, Cheap!!!

Novak Oval Spec 1s ESC with Booster, $25.

Servos: Futaba FP-S148, missing one mounting ear, (1); Airtronics 94102 (2); and Panda S-188 (2); $5 each.

Spektrum SR300 (2) and SR3000 (1)...
05-04-2018, 11:43 AM
Replies: 247
Views: 27,303
Posted By howardcano

If you are using my loop amplifer design, then...

If you are using my loop amplifer design, then your loop is far too large. The maximum size and appropriate jumper setting are given in the spec post:
...
04-23-2018, 07:23 AM
Replies: 21
Views: 1,096
Posted By howardcano

I can see no advantages, only disadvantages-- the...

I can see no advantages, only disadvantages-- the main one being expense, just as you stated. Every time the weight drops, the wallets open. That's never good.
04-23-2018, 05:34 AM
Replies: 97
Views: 9,831
Posted By howardcano

Can anyone provide a link to the results?

Can anyone provide a link to the results?
04-22-2018, 06:13 AM
Replies: 97
Views: 9,831
Posted By howardcano

GO GET 'EM KC BOYS!!!:tire:

GO GET 'EM KC BOYS!!!:tire:
04-11-2018, 02:49 PM
Replies: 12,079
Views: 1,270,425
Posted By howardcano

A molded mark would require a change to the tool,...

A molded mark would require a change to the tool, which can range from expensive to impossible if it hasn't been allowed for in the initial tool design. Colored lines that are molded-in are even more...
Forum: Chat Lounge
04-07-2018, 07:25 AM
Replies: 10
Views: 683
Posted By howardcano

I'd guess my special super-light fuzzy pink pig...

I'd guess my special super-light fuzzy pink pig head wouldn't cut it then?
Forum: Chat Lounge
04-06-2018, 04:05 AM
Replies: 10
Views: 683
Posted By howardcano

I mounted my HPI driver via a single nylon screw...

I mounted my HPI driver via a single nylon screw through the top of the helmet to the roof of the car. It's never in the way when I'm working on the car, since it comes off with the body.
04-05-2018, 08:44 AM
Replies: 34
Views: 1,476
Posted By howardcano

It sounds like you are well-equipped to tackle...

It sounds like you are well-equipped to tackle the project.

If those items you refer to are internet items, then no, I'm not familiar with them. Curiosity says I need to take a look.
Showing results 1 to 25 of 500
 


 
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