Lubrication, Bearings, Motors

ranst4038

Iargan Ambassador
I was surprised how few & old threads when lubrication searched so I started a new one.
Read a big discussion somewhere on Dry Lube for the 4 x 7 x 2 mm ball bearings you replace the stock bronze bushings with on toy class quads. Found the cheapest Liquid Wrench Dry Lubricant ($4.19 +Free Ship) that everyone was touting. Ordered 17th arrived 23rd from Grainger, the packaging must have cost $2.

Dry_Lube.jpg
 

Bartman

Welcome to MultiRotorForums.com!!
interesting, i didn't realize the smaller rtf quads were using bushings or that people were swapping them out with bearings. are the new bearings sealed?
 

ranst4038

Iargan Ambassador
No that would cause way too much drag. There just shield on one side, you install them shield out on top & bottom.
http://www.ebay.com/itm/272006472425

Then apply dry lube, it helps the micro brush 6v max motors they all use @ 8.4v last a little longer.
http://www.cerflon.com

This latest fascist crap isn't going to stand! F Nancy Polouseski ! Send toy quads raining on the *****!
But throwing money at heavy quads isn't the only way to have fun.
Sub 300 gram microlites using as little $ possible is fun too & doesn't apply to this new fascist crap!
Here are a few examples that you should be promoted or researched.
http://www.ebay.com/itm/171232903507 & http://www.ebay.com/itm/151842052639
The manufacturers or sellers state these are compatible with a lot of toy class, the JJRC H8D is one.
But how do you do it? Especially the Missile Launcher that has 4 wires.

And micro FPV moved inside to leave capacity for micro payloads.
http://www.banggood.com/FPV-5_8G-200mW-Wireless-Audio-Video-Transmitter-Module-TX5823-p-84780.html
http://www.banggood.com/600TVL-8_0M...-Wide-Anlge-Lens-Camera-PALNTSC-p-984345.html
The 190 reviews on these two items alone are a treasure trove. Example Quote
(I weighed this transmitter and it comes in at around 2.2 grams, For my 250 quad, I added a SMA direct to the board, (banggood PCB mount SMA) and had to trim one ground pin and the centre pin length to clear the shielding can. After soldering, inspect it under a magnifier, as the tracks and pads are incredibly small and easily shorted. The transmitter only likes 3.3-4.8 volt max, so i power mine from a 5v bec with a 1n4002 diode in series to drop 0.6 volts, as the bec as usual was outputting 5.25v. this gave around 4.6v. Follow up with a small capacitor across supply pads, 0.47-10uF and you'll have supply sorted. I hard wired a channel to the one I use most, but a dip switch can be fitted and switched to the shielding case for ground if required. Great value featherweight transmitter, with low price. I am also using this to make an ultra micro fpv plane (Banggood WLtoys Cessna 182) using a 3 gram camera, 2 gram transmitter, and 1 gram home made antenna, with a whopping 8 gram lithium cell. 15 gram fpv system, not bad.
(Im using this on a v212,i was able to keep the weight at 10g which made for an awsome tiny fpv.could have made lighter but i added a heatsink cause it gets quite warm without,even with an external3.3 voltage regulator.am able to fly to 239meter before v212 radio reaches its limits.
(I have 6 of these transmitters and they work flawlessly. Couple them with a 3.3V Pololu step-down regulator and a homemade cloverleaf and you'll get the lightest AND cheapest 200mW transmitter. I have flown out 2.2km with a 5 turn helical on the RX and still had clear image.)

I've never done any of that but it sounds fun. How do you make that cloverleaf?
What's a 5 turn helical? RTF cheapskates want to know!
 

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