HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Aug 22, 2012, 07:53 PM
Registered User
kensp's Avatar
Darwin Australia
Joined May 2002
6,960 Posts
Quote:
Originally Posted by phoxache View Post
Me again.
The Hobby King ones don't specify anything other than 10mm. They do say they weight 29g, so that's 2.9g each... making them more like these 10x4mm
I have just measured my Hobby King magnets and they are 2 mm thick.10 magnets weigh 11 grams on my digital kitchen scales. The 29 grams in the Hobby King web page is the shipping weight and this includes packaging.

Ken
kensp is offline Find More Posts by kensp
Last edited by kensp; Aug 23, 2012 at 12:13 AM.
Reply With Quote
Sign up now
to remove ads between posts
Old Aug 23, 2012, 03:43 AM
.--troll-o-copter--.
phoxache's Avatar
United Kingdom, Warks
Joined Jun 2012
214 Posts
Quote:
Originally Posted by kensp View Post
I have just measured my Hobby King magnets and they are 2 mm thick.10 magnets weigh 11 grams on my digital kitchen scales. The 29 grams in the Hobby King web page is the shipping weight and this includes packaging.

Ken
Cheers, Ken. That makes sense!
phoxache is offline Find More Posts by phoxache
Reply With Quote
Old Aug 23, 2012, 01:07 PM
Foam Wrecker
BillBlair's Avatar
3710'36.54"N, 116 2'46.08"W
Joined Jun 2002
186 Posts
Quote:
Originally Posted by kensp View Post
I have just measured my Hobby King magnets and they are 2 mm thick.10 magnets weigh 11 grams on my digital kitchen scales. The 29 grams in the Hobby King web page is the shipping weight and this includes packaging.

Ken
That's a measurement which makes me think that HK simply ships whatever thickness of 10mm diameter rare earth magnets they can cheaply get their hands on since a commenter on the HK web page for those magnets claims he measured 1.52mm. That's probably why HK doesn't specify a thickness.

10mm x 1mm versions are extremely common and available on sites such as dealextreme.com. The thickness will affect the attractive force, but as long as there's enough headroom in that figure for it's intended use, it won't matter. The thinner ones are also more likely to crack when snapped together, but the sliding mating action in this case should prevent that as would a continuous epoxy backing in other uses. And it's certainly better than nothing no matter what the thickness.
BillBlair is offline Find More Posts by BillBlair
Reply With Quote
Old Aug 23, 2012, 02:35 PM
Si Vis Pacem Para Bellum!
Doubletap's Avatar
PRC (People's Republic of Commiefornia)
Joined Jul 2005
9,602 Posts
Anyone receive their B2 yet? mine is still sitting in Hong Kong! Placed my order on August 7th It's been more than 2 weeks and my package has yet to leave from that island. This has to be the all time slowest order I've had with Hobby King. typically, most of my orders are received within 10-11 days from date placed.
Doubletap is offline Find More Posts by Doubletap
Reply With Quote
Old Aug 23, 2012, 03:04 PM
Tricopters Rule
United States, NC, Goldsboro
Joined Mar 2012
534 Posts
Mine showed up and the prop adapter was drilled by a drunk, shaft is also bent.......shame because all the rest of it is okay.
Panzlflyer is offline Find More Posts by Panzlflyer
Reply With Quote
Old Aug 23, 2012, 03:04 PM
SemperFi!
BriGuy82's Avatar
United States, TX, Texarkana
Joined May 2012
331 Posts
I have my B2, taking my time with the build. Installed 1/2" magnets from HobbyLobby but they are somewhat big. Definitely holds tight though! I am planning to use my B2 for FPV, thus I already know I want a bigger motor. I'm looking at this, what do you all think?

http://www.hobbypartz.com/86ma67-2215-1500kv.html
BriGuy82 is offline Find More Posts by BriGuy82
Reply With Quote
Old Aug 23, 2012, 03:06 PM
SemperFi!
BriGuy82's Avatar
United States, TX, Texarkana
Joined May 2012
331 Posts
Dang Doubletap!! I saw you posted you had ordered yours before me! I received mine like 3 days ago... Sorry your having so much trouble man..

Quote:
Originally Posted by Doubletap View Post
Anyone receive their B2 yet? mine is still sitting in Hong Kong! Placed my order on August 7th It's been more than 2 weeks and my package has yet to leave from that island. This has to be the all time slowest order I've had with Hobby King. typically, most of my orders are received within 10-11 days from date placed.
BriGuy82 is offline Find More Posts by BriGuy82
Reply With Quote
Old Aug 23, 2012, 03:08 PM
Registered User
Joined Mar 2012
44 Posts
If it makes you feel any better, I ordered mine on the 5th, and I don't think it has left the island either. It says "processing at sorting center" in the tracking information.

Quote:
Originally Posted by Doubletap View Post
Anyone receive their B2 yet? mine is still sitting in Hong Kong! Placed my order on August 7th It's been more than 2 weeks and my package has yet to leave from that island. This has to be the all time slowest order I've had with Hobby King. typically, most of my orders are received within 10-11 days from date placed.
SpidarX is offline Find More Posts by SpidarX
Reply With Quote
Old Aug 23, 2012, 03:18 PM
Si Vis Pacem Para Bellum!
Doubletap's Avatar
PRC (People's Republic of Commiefornia)
Joined Jul 2005
9,602 Posts
Quote:
Originally Posted by BriGuy82 View Post
Dang Doubletap!! I saw you posted you had ordered yours before me! I received mine like 3 days ago... Sorry your having so much trouble man..

Yeah, I don't know WTH is going on over there, but this poor performance is actually not typical in my experience.
Doubletap is offline Find More Posts by Doubletap
Reply With Quote
Old Aug 23, 2012, 03:20 PM
Si Vis Pacem Para Bellum!
Doubletap's Avatar
PRC (People's Republic of Commiefornia)
Joined Jul 2005
9,602 Posts
Quote:
Originally Posted by SpidarX View Post
If it makes you feel any better, I ordered mine on the 5th, and I don't think it has left the island either. It says "processing at sorting center" in the tracking information.

OK! it's strange, I don't think there is any kind of holiday going on over there currently, it's not like they are having their Asian New Years celebration, which won't be until February next year, so I don't know what is the hold up.
Doubletap is offline Find More Posts by Doubletap
Reply With Quote
Old Aug 23, 2012, 03:31 PM
SemperFi!
BriGuy82's Avatar
United States, TX, Texarkana
Joined May 2012
331 Posts
Quote:
Originally Posted by Doubletap View Post
OK! it's strange, I don't think there is any kind of holiday going on over there currently, it's not like they are having their Asian New Years celebration, which won't be until February next year, so I don't know what is the hold up.
Hey Doubletap, i'm in a bind here. And kinda want to order this but from what you've seen so far how do you think this will hold up for FPV?

http://www.hobbypartz.com/86ma67-2215-1500kv.html

Its a 1500kv...
BriGuy82 is offline Find More Posts by BriGuy82
Reply With Quote
Old Aug 23, 2012, 03:47 PM
Si Vis Pacem Para Bellum!
Doubletap's Avatar
PRC (People's Republic of Commiefornia)
Joined Jul 2005
9,602 Posts
Quote:
Originally Posted by BriGuy82 View Post
Hey Doubletap, i'm in a bind here. And kinda want to order this but from what you've seen so far how do you think this will hold up for FPV?

http://www.hobbypartz.com/86ma67-2215-1500kv.html

Its a 1500kv...

You would have to prop down to use that higher KV motor, otherwise you may end up burning up the motor and/or the ESC, for an FPV setup, you definitely want to swing the biggest prop you can to maximize efficiency and thrust to overcome the added drag and weight. if you want to swing the stock 7" prop, you really shouldn't go higher than around 1300 kv to keep the current draw within reason. Another option is to use the stock motor with a larger diameter prop, perhaps an 8x4e would work better than the stock 7x5e. You may have to clearance the tail boom slightly.
Doubletap is offline Find More Posts by Doubletap
Reply With Quote
Old Aug 23, 2012, 04:01 PM
SemperFi!
BriGuy82's Avatar
United States, TX, Texarkana
Joined May 2012
331 Posts
Quote:
Originally Posted by Doubletap View Post
You would have to prop down to use that higher KV motor, otherwise you may end up burning up the motor and/or the ESC, for an FPV setup, you definitely want to swing the biggest prop you can to maximize efficiency and thrust to overcome the added drag and weight. if you want to swing the stock 7" prop, you really shouldn't go higher than around 1300 kv to keep the current draw within reason. Another option is to use the stock motor with a larger diameter prop, perhaps an 8x4e would work better than the stock 7x5e. You may have to clearance the tail boom slightly.
Cool thanks for the input, i'll do some testing then with a few prop sizes on the stock motor..
BriGuy82 is offline Find More Posts by BriGuy82
Reply With Quote
Old Aug 23, 2012, 04:41 PM
Registered User
cliffkot's Avatar
Joined Jun 2010
713 Posts
Quote:
Originally Posted by BriGuy82 View Post
I have my B2, taking my time with the build. Installed 1/2" magnets from HobbyLobby but they are somewhat big. Definitely holds tight though! I am planning to use my B2 for FPV, thus I already know I want a bigger motor. I'm looking at this, what do you all think?

http://www.hobbypartz.com/86ma67-2215-1500kv.html
They also have a 1700 kv motor which works very well.
cliffkot is offline Find More Posts by cliffkot
Reply With Quote
Old Aug 24, 2012, 04:02 AM
Registered User
Joined Jun 2012
26 Posts
Hey guys, my B2 arrived today.

Just in case anyone is interested the servos are HK15178. I personally am not trusting them with FPV gear, but I reckon they'd be fine for line of sight flying.

They are kind of tricky to get out, but if you are patient they come out real clean without damage to the foam. Long nose pliers are essential for getting them out.
vonbraun_ is offline Find More Posts by vonbraun_
Last edited by vonbraun_; Aug 25, 2012 at 01:41 AM.
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Hobby King USA Warehouse wait time for bixler and 9x? elcid79 HobbyKing 13 Jun 09, 2014 09:13 AM
Discussion Hobby King Bixler motor? wehrwolfzug Power Systems 6 Mar 01, 2014 12:33 PM
Discussion Hobby King Buddy codes for Bixler FPV Build xxdixonxx Hot Online Deals 0 Jun 19, 2012 01:51 AM
Discussion Hobby king Bixler Buddy Code aaluu Foamies (Kits) 1 Feb 23, 2012 01:06 PM