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02-21-2014, 12:17 PM | #1 (permalink) |
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Join Date: Apr 2012
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Help with grounding (pics would be awesome)
So I am new when it comes to Protos (Accutaly helis in general- Noobie). I love my Protos but got a little upset when it crashed on my maiden flight with the BD3SX! I was in a hover about a 8 feet off the ground and then boom it was in the dirt.
After reading some of the threads I have a feeling that static was the cause. It is nice, cold and dry here in WA and the static is out in full force. I had not done any static fighting measures prior to the crash as I didn't have any when flying this summer with my AR7200BX. Now that I have upgraded to the BD I would like to get some help in grounding this heli. Here is my first step of grounding the motor to the frame. Should I run the wire away from the BD or will this work? I will also be going to Home Depot to get some silicone for the belt. I am looking for some quick pictures on how people are doing it to help me get it right. |
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02-21-2014, 04:08 PM | #2 (permalink) |
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Did you measure ohms between motor mount and frame? It should have been less than 100 ohms. I've never had to ground between motor and frame. Also, if you are using the conductive boom block and a recent tail boom with bare aluminum, you should be ok at that spot.
The only thing I added was a connection from frame to negative battery (lipo) with a 1k ohm 2w resistor. Never had a static problem since then. I connected one end to the screw that holds the landing gear.
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02-21-2014, 04:58 PM | #3 (permalink) |
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Join Date: Jun 2005
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I would definitely apply a small amount of silicone spray to the belt - I use small paintbrush. Spray the paintbrush, then run it along the belt while I turn the rotor blades by hand.
Folk say to use "food grade" silicone spray to be sure that it will not degrade the rubber belt or the plastic parts. I never heard of it, but found it on Amazon and ordered a can that should last a few years. This eliminated the static problems I was having in cold dry Winter NJ with my Mini Protos. Good luck with your new heli. . |
02-21-2014, 05:06 PM | #4 (permalink) | |
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Re: Help with grounding (pics would be awesome)
Quote:
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Dylan ~ www.AstroidDesigns.com |
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02-21-2014, 05:11 PM | #5 (permalink) | ||
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Quote:
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02-22-2014, 12:10 PM | #6 (permalink) |
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The grounding usually comes from the tail boom to the frame or motor. I was having some static issues with my stretch kit (funny, never had static issues with my stock kit), I scraped off some paint on the tail boom where the servo clamps are, put a wire under the clamp and ran it to the motor bracket nut. Solved my problem.
Chief
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RC Chief Hobbies MSH Protos 500 Flybar, Gaui 200 V2 Flybar,V120D01, V120D02S,MCPx (retired) Boating Fleet: Toysport Syncron and Triton Monos, 1/10 scale 1967 Miss Bardahl Shovelnose Hydro, Executone semiscale Hydro, OPC Tunnel, Miss Geico Cat |
02-22-2014, 12:38 PM | #7 (permalink) | |
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Quote:
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02-22-2014, 03:50 PM | #8 (permalink) |
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Join Date: Dec 2010
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+1 on the silicon on the belt. I do that too.
Chief
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RC Chief Hobbies MSH Protos 500 Flybar, Gaui 200 V2 Flybar,V120D01, V120D02S,MCPx (retired) Boating Fleet: Toysport Syncron and Triton Monos, 1/10 scale 1967 Miss Bardahl Shovelnose Hydro, Executone semiscale Hydro, OPC Tunnel, Miss Geico Cat |
02-22-2014, 04:57 PM | #9 (permalink) |
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Here is mine.
Tail to Boom: Boom to Motor:
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Having fun. Slowly learning. Protos Max v1 (800) - 7HV v2 - X7 - Trex 600 ESP - X5 FES - Logo 480 XXtreme - Protos 500 CF Stretched x 2 - Trex, CopterX & Blade 450s - CopterX 250 - MCPX - Nanos - XK 110. MD500 (Funkey / Align 600). |
02-22-2014, 05:25 PM | #10 (permalink) |
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Join Date: Apr 2012
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Thanks this will give me a place to start
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02-24-2014, 11:51 AM | #11 (permalink) |
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Join Date: Sep 2012
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Quik Q) i have a Protos 500 but i have the plasyic frame do i need to ground it at all, i see in the pics you all have the carbon frame
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MSH USA Team pilot (Lozki) Protos Maxx V2,Protos 380, jeti DS-14
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02-24-2014, 02:15 PM | #12 (permalink) |
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Join Date: Apr 2012
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From what I have read, yes. The belt is what's creating the static and the plastic frame is still conductive.
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02-24-2014, 09:41 PM | #13 (permalink) |
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Join Date: Dec 2010
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Check out the Finless Bob build videos,
The second to last video "Final Build Thoughts and Stuff" covers grounding (to the plastic frame) https://www.helifreak.com/showthread.php?t=105493 Chief
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RC Chief Hobbies MSH Protos 500 Flybar, Gaui 200 V2 Flybar,V120D01, V120D02S,MCPx (retired) Boating Fleet: Toysport Syncron and Triton Monos, 1/10 scale 1967 Miss Bardahl Shovelnose Hydro, Executone semiscale Hydro, OPC Tunnel, Miss Geico Cat |
02-25-2014, 08:03 AM | #14 (permalink) |
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Join Date: Sep 2012
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sweet BH that video helped alot
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MSH USA Team pilot (Lozki) Protos Maxx V2,Protos 380, jeti DS-14
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03-01-2014, 01:01 AM | #15 (permalink) |
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Detailed pictures of mine are here:
https://www.helifreak.com/showpost.p...5&postcount=21
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CopterX 450 Black Angel FBL "Night Rig" | ZYX v4.0 PRÔTOS 500 FBL "Sky Whip" | Robird G31 Audacity P6 FBL "Phoenix" | MSH Brain | 12s Goblin Speed | iKon |
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