old4570's blog View Details
Posted by old4570 | Jun 19, 2016 @ 07:10 PM | 692 Views


From United States, CA, RC Groups member "stevster"

Thank you Steve , You put a smile on this old dial ...

Matt
Posted by old4570 | Jun 09, 2016 @ 07:07 PM | 844 Views
Xiaomi Z15 aa-aaa USB Charger

Product page @ Gearbest = http://goo.gl/8DYSz1








Pictured is my test set up . I used two ( Three actually ) USB wall adapters , the one in the picture being advertised as being a 1A model . The other USB adapter was advertised as being 2A , interesting little tidbit , each adapter is capable of supplying half the advertised current . Also I am using a Charge Doctor to monitor the current going to the charger . So with the 1A adapter that equals around half an amp , and with the 2A adapter about one amp of current . So that means I have a way of limiting current going to the USB charger .

2A adapter ( 1A actual ) Here we have all of 5watt to play with . Depending on the voltage state of the battery being charged , you could very well pump 5Watt into the charger ( less any losses ) . If you do your math , that is a potential charge rate of around 4+ Amps ( depending on how much power is absorbed by the charger ) and the actual voltage state of the battery . ( Yikes ! ) I did have a battery ( old ) that had a resting voltage of 0.6v , and I did use the 2A adapter and it did hit 0.97A on the Charge Doctor ... Single battery charge ( Yes it did charge quickly )



1A adapter ( 0.5A actual ) This is much better in my humble opinion as we have some 2.5Watt to play with . Even with half as many watt's to play with the potential is there to charge a single AA at potentially over 2A .. Charging 2 to 4 AA would...Continue Reading
Posted by old4570 | May 30, 2016 @ 11:25 PM | 1,462 Views
From Gearbest :http://www.gearbest.com/chargers/pp_359772.html (link is external)
$34.37 received
Use coupon: ESYBE4GB For a further price reduction



● App control: Check and adjust its charging status at any time
● 2.1 inches LCD screen display charging mode and battery status
● 5V 1A USB output: Can be used as power bank to charge your devices
● Compatible with Li-ion, LiFePO4, Ni-MH and NiCd batteries
● Charges 4 batteries simultaneously, each of the 4 slots monitors and charges independently
● 4 buttons to set the charging current and battery type conveniently
● CC and CV two charging modes
● Automatically stops charging when battery is fully charged
● Activation function for Li-ion batteries with protection board
● Reversed polarity / short-circuit / over-current / over-charge protection

Input: AC 100 240V 50 / 60Hz 1A (max)
Output voltage: 4.2V + / 1pct, 3.6V + / 1pct, 1.48V + / 1pct
USB output: 5.0V + / 5pct, 1A
Output current: Li-ion, LiFePO4: 0.25A / 0.5A / 1A / 2A; Ni-MH, NiCd: 0.25A

E.SYB Website = http://www.e-syb.com/ (link is external)



...Continue Reading
Posted by old4570 | May 25, 2016 @ 08:26 PM | 1,482 Views
http://www.rcgroups.com/forums/showp...postcount=2042

I tested some receivers with my Turnigy i10
Posted by old4570 | Aug 23, 2013 @ 03:10 AM | 2,934 Views
Wow - Seems I havent posted on the forums for a while ..

Lets see :

Weather blows hard ATM , we have had some seriously bad weather this winter and lots of wind , an awful lot of wind ...

Went to school again to do my cert 4 in training and assessment ...

Was it 3 weeks ago we had a nice day , and I flew 3 of my 450's ...

I have been slack , lazy if you will , must be the bad weather , I have 2 heli projects and I should start to do some thing with them ... Like thread locking to begin with .
Its a chore , but needs to be done

Other than that , either or both projects should move rather quickly , and playing with the orange RX ( 3 axis ) can be done indoors ( to see if its capable of holding the tail at least )

Im such a slacker ATM ..
Posted by old4570 | May 21, 2013 @ 01:46 AM | 2,935 Views
I saw another 450 body on ebay , all of $17 shipped ...

Yeah I had to have it ...

This one arrived slightly worse for wear , a small part of the body broken off and one of the servo retaining arms was rather badly bent ... ( fixed now )

Well , the body had a rough trip , but should still work just fine ... apparently this style of 450 is more stable ( ive heard it said ) hmmm , for $17 im prepared to find out ..

1) Fiberglass body - came with main shaft ,
2) landing gear , main drive cog , and locking collar are from my spare parts
Posted by old4570 | May 07, 2013 @ 02:01 AM | 7,689 Views
Ready for thread locking ..

Its good to have spares handy ...


To many spares ?
Posted by old4570 | May 06, 2013 @ 10:35 PM | 5,239 Views
Well after getting my Orange Rx with 3 axis gyro , I started thinking about what heli to drop the gyro into ? I was on ebay and saw this frame kit , for $15 shipped I figured it was worth a look see ..

Frame came today , and its been bolted together using two sets of left hand frame panels , thats ok , I was planning on doing that myself as one side is cheaper than the other to buy and ship ( Strange but true ) .. + It will make no difference to how the heli works or flies , though a keen eye may pick up on the fact its assembled from 2 sets of left hand panels ..

Came with canopy mounts / servo mount pads / anti rotation bracket and a complete frame ... For $15USD shipped , this will become the X-heli to test the Orange 3 axis gyro Rx ...
Posted by old4570 | Apr 24, 2013 @ 09:37 PM | 5,201 Views
I got myself the Orange 3 axis gyro receiver ( spectrum ) as it really is relatively cheap , and as can be seen , its not overly large for a Rx with a built in Gyro .

Now from what I have seen ( youtube ) these sort of work well , and ver1 and ver2 did show some promise , so when ver3 became available , I thought it time to put my money down and get one ..

Now my main goal is to see if it will work ( receiver ) in a 450 helicopter ..
Since these receiver / gyro's were meant for planks ( RC Aircraft ) I want to test it in a flybar 450 , and see if the 3 axis gyro has anything to offer ..

Certainly be interesting to say the least ..

I will see if the Orange Rx/Gyro can hold the tail first ( looks like it will work with a regular Gyro ) , and then with a regular HH Gyro ..

And then see how much Elev/Ail can be dialed in on the Gyro

Oh well , something interesting to do in anyway ..
Posted by old4570 | Feb 10, 2013 @ 12:10 AM | 3,285 Views
No1 was sold today - goes to a new home !

Hopefully the new owner will get some thing out of it .. Memories !

Oh well ! But why do I have this urge to buy another 450 suddenly ?
Posted by old4570 | Jul 06, 2012 @ 06:36 AM | 3,383 Views
Nothing like a bit of chicken ...

Big risks here :

But why not .. This is my first DIY heli .. Might have to tweak it and make it more responsive ..

100 4534 (2 min 20 sec)

Posted by old4570 | Jun 30, 2012 @ 11:52 PM | 4,425 Views
Well , I tried to write a guide to help new people to the hobby , the guide is for assembling the 450 helicopter .

There is a sample for you to download , its a much smaller lower quality version of the full build guide .

12.5 meg 79pages cover to cover , 133 images , and $Free

Full Guide =
https://hotfile.com/dl/162805261/562...Guide.pdf.html

The guide is primarily for Noobs [ if you are already flying ] you most likely dont need it . And please , this is not a how to fly guide . Simply my attempt to ease any apprehension Noobs may have about the assembly process .

If there is enough interest , the next book might be on Flight Stability :
Setting up the heli to be stable :
Cover such things as the Gyro [ several of them ]
Maybe the 3 axis gyro
Flight stabilizing solutions such as Flymentor
And cheaper options , weighted blades , blade weight , Flybar weights etc, for Noobs of course since experienced pilots dont need help , its us noobs that need all the help we can get .

One of the things I dont understand ?
Why would a beginner set up a heli for 3D ???

Beginners need helicopters to be stable , solid platforms that provide the pilot with as little excitement as possible , once they progress , they can tune the heli to be more exciting [ responsive ]

An overly responsive [ exiting ] helicopter will most likely cause as many crashes as a poorly assembled and set up one [ possibly more ] for those just starting out . And possibly drive the individual away from the hobby , and we cant have that , can we ?

Personally I want to see everyone succeed !