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Since I'm very sure there is only a couple of these limited edition kits available at this point and I'm sure there are a ton of other X3 Build logs out there already. I decided not to do a detailed build log of this helicopter. Before deciding this I already edited the photos and added some notes and warnings to them. I might add some descriptions to some of the photos at some point. But for now, they say a photo is worth 1000 words. 
In the photos below you will some some of my little custom changes like adding a cooling fan up front for my Castle Talon 35. Since the Scorpion 2520-1880kv motor is rated for 38A continuous and 50A peaking. I figured adding a fan to the Talon 35 which has a beefy BEC at 5.5v is better than getting a Edge 50 which weighs twice as much and I might just end up needing a separate BEC for my servos too. The fan screams and moves plenty of air. It seems to blow air around my motor pretty well too. So that might help keep it cooler as well.
I didn't like the stock skids because I've heard enough people complain about them. But more than anything they don't match my X5 and X7 swept back skids and they are a little tall for my liking. So I rebranded some Align skids and moved on.
I really didn't like how the torque tube ends were supposed to be attached in the manual. I just don't care for the glue and locking collar compression method. So i went ahead and installed a 1.5mm dowel pin that I cut to length and drilled a hole for on each...Continue Reading
In the photos below you will some some of my little custom changes like adding a cooling fan up front for my Castle Talon 35. Since the Scorpion 2520-1880kv motor is rated for 38A continuous and 50A peaking. I figured adding a fan to the Talon 35 which has a beefy BEC at 5.5v is better than getting a Edge 50 which weighs twice as much and I might just end up needing a separate BEC for my servos too. The fan screams and moves plenty of air. It seems to blow air around my motor pretty well too. So that might help keep it cooler as well.
I didn't like the stock skids because I've heard enough people complain about them. But more than anything they don't match my X5 and X7 swept back skids and they are a little tall for my liking. So I rebranded some Align skids and moved on.
I really didn't like how the torque tube ends were supposed to be attached in the manual. I just don't care for the glue and locking collar compression method. So i went ahead and installed a 1.5mm dowel pin that I cut to length and drilled a hole for on each...Continue Reading
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After removing the heat sink it turns out there was only one FET that needs thermal compound. The rest use thermal transfer tape. Which seems reusable to me. Some of the tape is still stuck on the heat sink. -
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Here are the balance transistors for the #1 port! The ones for the #2 port are still covered by tape. -
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I cut the contacts here with a sharp razor knife. Side snips would probably have been good too. Unfortunately I cut the wrong transistor because I was rushing. But here is the photo so you can see how i cut them. -
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After removing the transistor you can see that I almost cut the contacts off flush with the casing. -
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I cut the two long posts on the new transistor to match the length of the middle one. Then I tinned all contacts. -
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This is actually the side I was supposed to be working on all along. You can see the burn mark on the piece of board that was under the chip. You can also see the little burn spot on the face of the chip laying on top of its neighbor to the right. -
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After soldering.
Gaui X6 FES Custom ( X5 stretch to 610mm )
As the title states. This build is a Gaui X5 stretched to 610mm, making it a X6. I had two X5s and my main one has been so reliable that i never needed to bring the backup one to the field. So I decided to put in some custom work to make the "backup X5" into something bigger and running on 12S packs. During the first couple of flights I decided to stress test the collective on the heli quite a bit to make sure things would hold up. As it turned out, even the black main gears can strip easily if you run too high a pitch range. I stripped 3 main gears on the first day. After about 6 flights i settled on running about 10.5° +/- pitch range and using my max governed head speed of 2350 RPM. That has worked out well from flight 7 till my final flight today, which was flight 16.
The maiden flight went smoothly.
After the maiden flight is when i started getting heavier on the collective and went through trying to solve the main gear stripping issue. But before that boring mess. You might as well watch one of the better 3D flights first.
...Continue Reading
As the title states. This build is a Gaui X5 stretched to 610mm, making it a X6. I had two X5s and my main one has been so reliable that i never needed to bring the backup one to the field. So I decided to put in some custom work to make the "backup X5" into something bigger and running on 12S packs. During the first couple of flights I decided to stress test the collective on the heli quite a bit to make sure things would hold up. As it turned out, even the black main gears can strip easily if you run too high a pitch range. I stripped 3 main gears on the first day. After about 6 flights i settled on running about 10.5° +/- pitch range and using my max governed head speed of 2350 RPM. That has worked out well from flight 7 till my final flight today, which was flight 16.
The maiden flight went smoothly.
| Gaui X6 - Maiden Flight (custom build) (5 min 42 sec) |
After the maiden flight is when i started getting heavier on the collective and went through trying to solve the main gear stripping issue. But before that boring mess. You might as well watch one of the better 3D flights first.
| Gaui X6 - 3D Flight 07 - 10.5° +/- Pitch Range (4 min 22 sec) |
Gaui X7 FBL Build log, Mods and Repairs
Here we go the first post for my Gaui X7 Build Log. This is a very nice looking heli and i like it's design characteristics very much. I have not found much to complain about, so far its nothing but Gaui Grin
. I am very excited and hope to see the same quality I have come to know with my X5. I will update this post as well as the rest of this thread as i go.
On this build I want to send a special thanks to Anythingheli.com. The owner Dave is very knowledgeable. He has been very helpful with my helicopter selection this time around. Now that i am moving up to a 700 class model i had some questions and Dave had answers. He made a very good case for the SAB 700 or 770. However in the end, for a few of my own reasons, I ended up choosing the Gaui X7. It was mostly because i already own a X5 and am familiar with Gaui and really like what they have been doing lately. All i know for sure is that whether i choose a Gaui or a SAB. Dave over at AnythingHeli.com will be working hard to keep the parts i need in stock on a regular basis. Thanks Dave!
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Index:
#1 - Index (this post)
#2 - Gaui X7 FBL Unboxing
#3 - Gaui X7 Build - Part 1 - The Main Airframe
#4 - Gaui X7 Build - Part 2 - The Tail Section
#5 - Gaui X7 Build - Part 3 - Rotor Head & Misc. Parts
#6 - Gaui X7 Build - Part 4 - Servo Installation using RJX HV servos
#7 - Gaui X7 Build - Part 5 - Electronics...Continue Reading
Here we go the first post for my Gaui X7 Build Log. This is a very nice looking heli and i like it's design characteristics very much. I have not found much to complain about, so far its nothing but Gaui Grin
. I am very excited and hope to see the same quality I have come to know with my X5. I will update this post as well as the rest of this thread as i go. On this build I want to send a special thanks to Anythingheli.com. The owner Dave is very knowledgeable. He has been very helpful with my helicopter selection this time around. Now that i am moving up to a 700 class model i had some questions and Dave had answers. He made a very good case for the SAB 700 or 770. However in the end, for a few of my own reasons, I ended up choosing the Gaui X7. It was mostly because i already own a X5 and am familiar with Gaui and really like what they have been doing lately. All i know for sure is that whether i choose a Gaui or a SAB. Dave over at AnythingHeli.com will be working hard to keep the parts i need in stock on a regular basis. Thanks Dave!
Click Here To Subscribe to this thread!
Index:
#1 - Index (this post)
#2 - Gaui X7 FBL Unboxing
#3 - Gaui X7 Build - Part 1 - The Main Airframe
#4 - Gaui X7 Build - Part 2 - The Tail Section
#5 - Gaui X7 Build - Part 3 - Rotor Head & Misc. Parts
#6 - Gaui X7 Build - Part 4 - Servo Installation using RJX HV servos
#7 - Gaui X7 Build - Part 5 - Electronics...Continue Reading
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The old broken frame pieces. -
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It is a good idea to use one of the new frame pieces or the old frame piece after you remove one as a way to organize your screws as you remove them. They are all different lengths and it is easy to get them confused. -
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Once the frame is all open you can use this time to clean the gunk out from old belts and gears as well as sand and grime. Maintenance the bearings or anything else that needs to be done like replace the belt. -
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This sheered gear cap allowed for play in the shaft. It moved up and down till the bottom black gear cap slid down exposing an edge side of the gear where the belt could wrap around. As it spun it wore the belt teeth away. It was pretty bad. -
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It's sheered down pretty bad! Probably almost 1mm missing.The shaft was able to move up and down while spinning and eventually knocked the other cap loose. I will cover how i repaired this later in this build log.
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I had to open it up. 6 screws in the back to get it open. -
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Carefully!! unplug the leads to the back panel. -
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Getting the throttle hold switch out is no easy task. From what i can tell, you might even have to unsolder the pots for the sticks. I decided i don't want to disassemble anything else. -
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Instead of using the more civilized method of logical progression. I went brute force on this sucker. I removed the outside nut holding the toggle in and lifted till the frame cracked. oops! But it gave me just enough clearance to force the switch out.... -
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The new replacement switch on the left with it's tag shown in the back. The red one still has the board that I'll be using on the new switch. -
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New switch with PCB installed. -
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Stuck it in with a little force, but it's in there. The stock TX nut to hold it in fit also. -
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Don't forget to plug everything back in the way it came out and screw the transmitter back together. I had no issues and have been flying fine since!
Well. I've been holding back on releasing pictures or video of this very nice, very cool little project I've been working on. The helicopter has evolved past what i am currently releasing. But, none the less. Here is where i started:
The "4F200SD5"
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The "4F200SD5"
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IHW Bell 222 - 5 Blade rotor, fiberglass fuselage
...Continue Reading
| IHW Bell 222 - Test Flight #1 (3 min 33 sec) |
| IHW Bell 222 - Parking lot Test Flight #2 (3 min 30 sec) |
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Okay, so i broke the RX shelf and had to replace the air frame. -
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So I had to strip down the old frame starting with the servos and servo mounts. -
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The guide wheels and motor need to come out also. -
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The new stock unmodified air frame. -
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Bottom side. -
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Notice how nice and flush the bearing is with the frame. You want to try and get it as close to this as possible. -
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Changing the belt guide wheels over to the new frame. -
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My RX circuit board came loose inside this jacket. So I had to break it open and put a new piece of foam mounting tape inside to secure it. Then i taped the RX jacket back up.
