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Search: Posts Made By: PDR
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07-22-2022, 06:51 PM
Replies: 26
Views: 921
Posted By PDR

The first prototype implements, in purpose-built...

The first prototype implements, in purpose-built hardware, essentially the same approach described by ROAR for an oscilloscope. It successfully detected any amount of timing advance across the three...
07-19-2022, 03:22 PM
Replies: 479
Views: 128,076
Posted By PDR

Bezerk RC does a good range of CF parts, eg:...

Bezerk RC does a good range of CF parts, eg: https://bezerk.com.au/shop/product_info.php?products_id=594
06-30-2022, 06:00 PM
Replies: 29
Views: 1,000
Posted By PDR

The power loss differences between different...

The power loss differences between different wires based on quick calcs. Losses go up with the square of current, but linear to wire length. YMMV according to wire composition/materials etc. Good...
06-24-2022, 09:32 PM
Replies: 16,098
Views: 3,896,724
Posted By PDR

The extra pace is required to outrun the drop...

The extra pace is required to outrun the drop bears.
06-14-2022, 10:44 PM
Replies: 7
Views: 568
Posted By PDR

It's a new part, and the part number is 30810004....

It's a new part, and the part number is 30810004. I only found it on a Korean site so far, but a retailer or distributor should be able to find out lead times.
06-11-2022, 06:22 PM
Replies: 4
Views: 194
Posted By PDR

As an example, Apple make a 12W charger with the...

As an example, Apple make a 12W charger with the type A plug, which would give you 2A @ 5V. However, currents higher than the standard spec typically involve some "negotiation" between the charger...
06-10-2022, 04:20 AM
Replies: 4
Views: 194
Posted By PDR

The power capabilities of USB are many and...

The power capabilities of USB are many and varied. If it's the traditional USB-A style connector on the charger, the best the standard can offer is around 7.5W. USB-C, which will always have a...
06-04-2022, 04:15 AM
Replies: 7
Views: 568
Posted By PDR

The product page has a picture of a cable that...

The product page has a picture of a cable that appears to have a standard sensor connector on it. Unclear if it's in the package or available separately....
05-24-2022, 05:01 PM
Replies: 21
Views: 5,439
Posted By PDR

I've done early testing on 3 ESCs at the moment....

I've done early testing on 3 ESCs at the moment. A Tekin RS Pro Black Edition, a HW XR10 Pro Stock Spec and a HW V3 120A. The Tekin and the V3 are almost bang on 0 degrees, the XR10 has a very,...
05-24-2022, 04:30 PM
Replies: 1,108
Views: 222,787
Posted By PDR

Stunning work! Well done, and enjoy!

Stunning work! Well done, and enjoy!
05-24-2022, 03:41 AM
Replies: 21
Views: 5,439
Posted By PDR

I think I've now got a compact, low-cost design...

I think I've now got a compact, low-cost design that is working. Something which is easy to see by a human looking at a screen takes a little bit of work for a microcontroller to come to the same...
05-10-2022, 10:50 PM
Replies: 15
Views: 1,283
Posted By PDR

My top shelf servo ...

My top shelf servo
https://cimg9.ibsrv.net/gimg/www.rctech.net-vbulletin/800x600/img_7866_small_55f20886aad18e05f2be4981e7185b3991e2b45e.jpg
05-10-2022, 02:09 AM
Replies: 25
Views: 847
Posted By PDR

If I get to race at Kambah (ACT) over the cooler...

If I get to race at Kambah (ACT) over the cooler months, I'll try to do a data run at the track. It's often below freezing in the first part of the day.
05-10-2022, 02:05 AM
Replies: 25
Views: 847
Posted By PDR

The vintage I have is designed with a connector...

The vintage I have is designed with a connector (Tamiya plug) for a 6-cell NiMh pack that can fit internally. I've never used that though...

It does seem odd that they would include that when it's...
05-10-2022, 01:11 AM
Replies: 25
Views: 847
Posted By PDR

Using a 2S battery, the warmers struggled to hit...

Using a 2S battery, the warmers struggled to hit target temperature and keep it there:...
05-10-2022, 12:56 AM
Replies: 25
Views: 847
Posted By PDR

Muchmore CTX with the cup warmers. I have some...

Muchmore CTX with the cup warmers. I have some wrap-arounds in the dungeon...
05-09-2022, 11:51 PM
Replies: 25
Views: 847
Posted By PDR

This thread needed more data, so I decided to...

This thread needed more data, so I decided to make some.

15 minute warming cycle chart. You can see pretty easily how many cups are going at any one time ;-). Sampling period is 0.25 seconds
...
05-09-2022, 07:38 PM
Replies: 11
Views: 526
Posted By PDR

FWIW - my transmitter battery (2S 2300mAh)...

FWIW - my transmitter battery (2S 2300mAh) charges faster on my icharger than it does on my imax B6AC when both are set to balance charge at 2.3A (otherwise all other settings are factory default)....
05-04-2022, 05:25 AM
Replies: 3
Views: 288
Posted By PDR

It would be pretty straightforward to use a small...

It would be pretty straightforward to use a small Arduino board to do this. Throttle input goes into the board, based on the throttle value, it outputs a signal to two outputs. One for the ESC and...
04-21-2022, 03:27 AM
Replies: 11
Views: 4,448
Posted By PDR

I sell a set for RC F1 cars that does this (see...

I sell a set for RC F1 cars that does this (see https://www.youtube.com/watch?v=kAX39787ieA), but the idea is pretty simple. To build your own, you can use an Arduino or similar microcontroller to...
04-18-2022, 02:20 AM
Replies: 3
Views: 390
Posted By PDR

This looks super fun, but there's a bit of a...

This looks super fun, but there's a bit of a backlog in my build pipeline to explore this just yet :). The project described in the video doesn't look like it's had an update for 2 years. I fear the...
04-07-2022, 09:58 PM
Replies: 1,419
Views: 302,636
Posted By PDR

<tongue firmly in cheek> wouldn't a subscript for...

<tongue firmly in cheek> wouldn't a subscript for the elements of the sets x & y be more readable?

<pressing even harder> am I gonna need a sin/cos table on my pit table? Given the recent rain, I...
03-13-2022, 01:33 AM
Replies: 2
Views: 230
Posted By PDR

My Muchmore cups are about 7.5 Ohm (nearly an...

My Muchmore cups are about 7.5 Ohm (nearly an order of magnitude less than yours) for the heater circuit (same pins though). The thermistor resistance is very similar.

I bet if you plugged those...
03-13-2022, 01:27 AM
Replies: 9
Views: 535
Posted By PDR

If it doesn't absolutely have to a 540-style...

If it doesn't absolutely have to a 540-style motor, maybe an outrunner would be easier?
02-20-2022, 10:03 PM
Replies: 1,262
Views: 366,896
Posted By PDR

This is what it looks like :-) ...

This is what it looks like :-)
https://cimg4.ibsrv.net/gimg/www.rctech.net-vbulletin/800x552/r1_v21_aecbc287a735d780bac6ae7a4128d55014d5a309.jpg
Showing results 1 to 25 of 500
 


 
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