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Old Nov 12, 2012, 10:45 AM
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I've tested the MJX props the first time last weekend.
Wow I'm very impressed. They are more silent (maybe better balanced) than the UDI and have much lifting power.
I will go on testing in real life situations when flying outdoors.

For now the MJX and the LB props are my favorites!
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Old Nov 12, 2012, 11:08 AM
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MJX blades are bigger than Walkera's.What is the difference in flight time between those two?
I also ordered MJX blades and waiting for them.
I'm searching and trying now to fit some new light canopies.I have these light polystyrene spheres from Crystmas tree ornaments.Anybody have an ideea how to paint polystyrene(light paint)?I tried something but it disolves it.EPS is easy to carve using a soldering iron easier than cutting soft butter.
My v939 hybrid.I'm very pleased about it.Atm it plays nice and stable.I've installed some plastic props/motor guards(an ideea I found on some rcgroups posts) to prevent motor shaft/brushes being damaged when crashes occur.
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Last edited by midelic; Nov 12, 2012 at 02:50 PM.
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Old Nov 12, 2012, 12:19 PM
I think I'm inverted. Maybe.
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Airbrushing works, you can also use rattle cans of Krylon H20. Anything that you read works with Depron or FFF will work on EPS.
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Old Nov 12, 2012, 02:32 PM
We can rebuild it!
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One thing on my list to try for colouring foam is spraying on Sharpie......

What am i on about? Well back when I was a kid I had this thing call a "getset air spray", it was a cheap plastic footpump like you would get with a air bed, a length of rubber tube and a thing that looked like an airbrush, it held a felt tip pen and hen you pumped it would spray the ink off the tip of the pen, I'm gonna try and mount a Sharpie to my airbrush and have a go at spraying with it.†
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Old Nov 12, 2012, 02:35 PM
I think I'm inverted. Maybe.
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Warning: SHARPIE WILL MELT EPS. It works fine on EPP but it'll melt styrene-based products.

But a sharpie airbrush would be pretty cool
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Old Nov 12, 2012, 05:08 PM
We can rebuild it!
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Would that be Sharpie specific or permanent markers in general, I used a permanent marker on my XPS foam frame and it was fine, or is XPS different from EPS?

As soon as I finish my DIY mini compressor I'll start SharpieSpray experimenting.
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Old Nov 12, 2012, 05:52 PM
I think I'm inverted. Maybe.
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It's both PS, polystyrene.

I don't know if it's sharpie specifically, but I've tested both black and silver sharpie on some depron, and it melted it. Just try on some scraps and see.
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Old Nov 12, 2012, 07:35 PM
We can rebuild it!
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I thought E and X both meant EXpanded, the piece of XPS I coloured a week back using a Brand X CD marker pen is till fine, I wonder if CD marker pens have a different chemical makeup so that they don't damage CDs (or PS foam).
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Old Nov 12, 2012, 07:40 PM
I think I'm inverted. Maybe.
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Probably.
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Old Nov 13, 2012, 04:08 AM
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Quote:
Originally Posted by midelic View Post
Raj,
How do you stick the canopy to the wooden arms?It is not clear from the photo.
midelic
please see these pictures - I think they are self explanatory....
Hope this helps....

And AUW = 30gms
Yes motors are 7x16 aliexpress
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Last edited by Raj Quest; Nov 13, 2012 at 04:21 AM.
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Old Nov 13, 2012, 04:18 AM
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Quote:
Originally Posted by djdavies83 View Post
Looking good Raj!

I've had another idea for frame and/or motor mounting....
............ I'm thinking about also making a PCB as a frame.
dj....
I thought of the fuse holder too, but couldn't figure out how to fix it to the boom ... and also wasn't sure of the weight.
Do post a pic when you try it out. I'd certainly would like that detail.
I'm not a frequent flyer, so some day I don't wan't to pull out my quad and find that all elastic bands have gone soggy!!

PCB Frame would be a fantastic think to do...
Hope you get it done soon.

Thanks
R
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Old Nov 13, 2012, 04:24 AM
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Raj,
I'm impressed.Interesting ideea.
I get it.I have 7x20 mm motors.It weighs more than 7x16 motors.
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Old Nov 13, 2012, 04:29 AM
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Quote:
Originally Posted by midelic View Post
Raj,
I'm impressed.Interesting ideea.
I get it.I have 7x20 mm motors.It weighs more than 7x16 motors.
But they also have more power for lifting.
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Old Nov 13, 2012, 04:30 AM
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Just For Records::::

1) All 4 motors together produce a static thrust = 34gms with a freshly charged Lipo
2) Each 7x16 (The one I got from Aliexpress) Motor Draws about 0.75A current at full throttle
3) Each Motor (My Aliexpress) Weighs = 2.45gms
4) With a 300mAh battery, run time is around 10 mins (simple flying)
5) Each Ladybird prop is 55mm dia & weighs 0.26gms
6) Take off is at approx 60% of throttle
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Last edited by Raj Quest; Nov 13, 2012 at 04:36 AM.
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Old Nov 13, 2012, 04:36 AM
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has anyone noted the weight of a hollow cup 7x20 motor?
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