ARIXTRA Build Thread by ISAAC NAJARY
03-15-2013, 11:58 PM
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RE: ARIXTRA Build Thread by ISAAC NAJARY
Saving 50 gram !!!, see post 224 (78+25-53).
Weights after step 8 = 1,383 gram (1,117+117+123+26).
Step 3-8 = 53 gram (1,383-1,330).
Weights after step 8 = 1,383 gram (1,117+117+123+26).
Step 3-8 = 53 gram (1,383-1,330).
03-19-2013, 06:39 AM
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RE: ARIXTRA Build Thread by ISAAC NAJARY
Step 11 = Preparing the clear coat.
70% thinning.
Adding few drops of metallic silver pigment gives the lacquer sparkling effect.
70% thinning.
Adding few drops of metallic silver pigment gives the lacquer sparkling effect.
03-19-2013, 06:52 AM
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RE: ARIXTRA Build Thread by ISAAC NAJARY
Weights after step 12 = 1,353 gram (869+82+126+125+124+27).
Total weight of the finish process = 1,353-1,246(post 225) = 107 gram.
Step 9 - 12 = 54 gram (107-53).
Total weight of the finish process = 1,353-1,246(post 225) = 107 gram.
Step 9 - 12 = 54 gram (107-53).
03-21-2013, 12:03 AM
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RE: ARIXTRA Build Thread by ISAAC NAJARY
Congratulations Isaac. I've seen all yours. Thank you for these wonderful assembly details and photos. I'm learning so many things from you and I think that sooner or later, having built many models lower build kit from a F3A. Too bad we live too far away (<2000 km as the crow flies) because I would like to meet you and maybe see for yourself how to realize several things. (sorry for the English is not perfect because it translated by google. unfortunately I do not speak English).
I wait to see the finished Arixtra and maybe some video in flight.
Greetings from Palermo (Sicily)
Fabio
I wait to see the finished Arixtra and maybe some video in flight.
Greetings from Palermo (Sicily)
Fabio
03-21-2013, 06:36 AM
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RE: ARIXTRA Build Thread by ISAAC NAJARY
Saving 10.1 gram – (Xigris cable 20.9 gram 22 AWG – Arixtra cable 10.8 gram 26 AWG).
My friend Shlomi Chester measured 1.5 Ampere as maximum servos current consumption in his Wind S Pro, and hi is using 26 AWG electric cables for the elevators servos with great success, thank you Shlomi.
I made a little research abut the voltage drop on the elevators servos cables:
I assume that the elevators servos maximum current consumption is 0.5 Ampere, 1 meter cable length and the cable temperature is 40 degrees Celsius.
Here are the results (see files enclosed herewith):
1. For 0.1volt voltage drop we need a 0.09702 square millimeter cable.
2. The voltage drop on a 22 AWG cable (0.33 square millimeter) is 0.0294 volt.
3. The voltage drop on a 26 AWG cable (0.13 square millimeter) is 0.074630769 volt.
Best regards,
Isaac Najary
My friend Shlomi Chester measured 1.5 Ampere as maximum servos current consumption in his Wind S Pro, and hi is using 26 AWG electric cables for the elevators servos with great success, thank you Shlomi.
I made a little research abut the voltage drop on the elevators servos cables:
I assume that the elevators servos maximum current consumption is 0.5 Ampere, 1 meter cable length and the cable temperature is 40 degrees Celsius.
Here are the results (see files enclosed herewith):
1. For 0.1volt voltage drop we need a 0.09702 square millimeter cable.
2. The voltage drop on a 22 AWG cable (0.33 square millimeter) is 0.0294 volt.
3. The voltage drop on a 26 AWG cable (0.13 square millimeter) is 0.074630769 volt.
Best regards,
Isaac Najary
03-23-2013, 07:44 AM
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RE: ARIXTRA Build Thread by ISAAC NAJARY
ORIGINAL: Malcolm H
Isaac,
Why not run S bus servos and save an extra core?
Regards,
Malcolm
Isaac,
Why not run S bus servos and save an extra core?
Regards,
Malcolm
Save an extra core will be about 7 gram including the connectors.
I don’t know how much the 1000mm S.Bus Hub with Cable will weight ?
But in my opinion the disadvantage of the S.Bus is that it is an electronic device which must be firmly attached to the fuselage (see the manual).
http://www3.towerhobbies.com/cgi-bin...?&I=LXZKA5&P=M
http://manuals.hobbico.com/fut/sbd-1-manual.pdf
http://www3.towerhobbies.com/cgi-bin...&I=LXZKA8&P=SM
So regardless the weight saving, I prefer the simplicity.
Best regards,
Isaac Najary