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Old 12-29-2016, 02:08 PM   #1 (permalink)
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Default Compass EXO 500 Build Thread

This is a place holder for a Compass EXO Build Thread. Tomorrow, I will have my servos so we'll start there.

Scott
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Old 12-30-2016, 09:25 AM   #2 (permalink)
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Just a quick update. My kit should be in my hands either today or tomorrow. We'll likely start up Sunday due to family commitments. It's going to be fun! Stay tuned!

Scott
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Old 12-30-2016, 10:55 AM   #3 (permalink)
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OUTSTANDING SCOTT!

I have really been looking forward to your eXo Build Thread!
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Old 12-30-2016, 01:56 PM   #4 (permalink)
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I think you should include a good BBQ wings recipe video too! lol I did reply/ got your friend request Dunk... I missed it earlier sorry

I am excited to see how it looks and goes.

I did the 120 hobbywing v4
MKS servos tail too
Vbar Neo Vlink for my Vcontrol

Red Exo

Now Bats could be a issue - I did the pulse 4100's 6's I hope they fit ok size wise they should based on that optipower but I want to see how it will fit.
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Old 12-30-2016, 03:11 PM   #5 (permalink)
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Those Pulse should fit fine. I have tested up to common 6s 5000mah size packs in the computer model.
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Old 12-30-2016, 04:58 PM   #6 (permalink)
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Please, I'd like to know what size bullets the motor has, or if it has bullets. Thanks, Dan
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Old 12-30-2016, 05:41 PM   #7 (permalink)
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I might be coming back to compass....
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Old 12-30-2016, 06:53 PM   #8 (permalink)
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Quote:
Originally Posted by dogbreath View Post
Please, I'd like to know what size bullets the motor has, or if it has bullets. Thanks, Dan
Dan,

I really don't know. We didn't use the bullets which came with the eXo test kit because we used a Talon 90 ESC. The Talon 90 comes with bullets which plug into the ESC. I would recommend using the bullets that come with your ESC or motor if you ordered the kit that doesn't include the motor. In the case you ordered the kit with the motor, use those bullets.

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Old 12-31-2016, 04:10 AM   #9 (permalink)
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Scott,
I ordered the kit with motor. ESC is a Mezon 90, and it has bare wires. I was just wanting to get ahead of the curve when I finish setting up servos a few days from now. No big deal. My kit hasn't shipped yet, and before I build I have to finish the winter maintenance on the TRex 550 so I can sell it. By waiting a bit, I'll get the benefit of reading your build and others' comments anyway.

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Old 12-31-2016, 09:28 AM   #10 (permalink)
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Dan,

When your kit arrives, if you have questions, please be sure to ask! All of us on the team will be happy to help.

Happy New Year!

Scott
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Old 12-31-2016, 02:19 PM   #11 (permalink)
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Default The Compass EXO 500 Build Thread Starts Here!!

Okay folks, here we go with my Compass EXO 500 Build Thread.

First, a little background information.

Many of you know that I was involved in testing (not because I'm a great pilot or anything like that, I just live close to Steve McFall of Experience RC) the "zero" build of the Compass EXO 500. I learned a lot of things about the model during that build. I'm going to pass every tip I have to you during this build.

I hope you find this thread useful. I will be very thorough as I have in other builds here on HeliFreak. Having the experience of building an EXO before, I do not expect this thread to be as long as that as the Chronos 700.

So, with that out of the way, let's get going!



From time to time, I'll be taking pictures of the manual to better illustrate what is going on with a particular step.



These are the electronics I'm going to be using for my Compass EXO 500. From bottom left to bottom right they are:

Hobbywing programming box;
MKS 9780 High Voltage Tail Servo;
MKS 9767 High Voltage Cyclic Servos (three, each);
Scorpion HKIII 4025-1100 Brushless Motor;
Hobbywing Platinum 100 V3 ESC; and
Spartan Vortex VX1e

From my experience building the test model, I recommend setting servo centers first. This is because installing the post screw will be very difficult if you wait to do this step later. Plus, if you do it now, all you have to do is attach the balls to the arms when your kit arrives. As of right now, my kit is in the Pontiac, MI post office.

NOTE: This part assumes you have programmed correct servo frequencies into your FBL unit, basic ESC setup, and assumes you have performed basic transmitter setup for your model. If you haven't done that yet, please do it now.

So now, we start centering the servos!



Here, I have my servos out of the packaging and the arms/fastening screws laid out.



Because I'm using a Spartan Vortex, the connectors on the unit are numbered. So, starting with the elevator servo, I number each servo to its corresponding location in the Vortex and swash location.



If you look down on the helicopter with the tail pointed toward you, this is the left front cyclic servo position. I numbered it accordingly.



This is the right front servo connector, numbered.



Next, I laid out the servos in their proper positions with the output spline properly oriented. Visualize tipping the three cyclic servos to the left and rotating the elevator servo to the right. I taped the two front cyclic servos together so this process can be seen better.



Here, I have powered up the Vortex, bound the receiver, and entered the menu on the DataPod for servo trim. Starting with the elevator servo, I placed the servo arm on the splines as close to perpendicular to the case (90) as possible. Don't worry that it's a little off center at this point. Note that when the elevator servo is installed, its arm faces to the rear of the helicopter. We'll also install the balls on the servo arms in a later step.



Here, the servo is centered and the arm is perpendicular to the servo case, in its proper position. I used the servo trim function in the swash setup of the Vortex to adjust the position. I had intended to use the RDLohr servo centering indicator for this step, but it did not arrive in time. I highly recommend using this tool as it give you a better visual representation of center. Later, before installing the servos, I'll use this tool to recheck servo centers.




Next, we clean all the fastening screws in solvent. I use 99 percent isopropyl alcohol for this purpose.



Using blue thread locker...



... install the fastening screw to the servo arm and spline shaft.



Here, I've placed the front cyclic servo arms onto the servo splines and oriented the arm in the proper position as close to perpendicular (90) to the sides of the servo. It looks like it will require only minor trimming.



Here, I've made trim adjustments to the servos center and the arms are now perpendicular to the cases of the servos. Using the steps above, clean, thread lock and install the fastening screw to each arm/spline shaft.



Next, we start on the tail servo. Here I'm holding the tail servo so you can see the orientation of the output spline shaft --this assumes the tail boom of the helicopter is to the left. So, the output spline shaft is to the rear of the helicopter.



This is how the servo will be positioned inside the helicopter. The output splines are to the rear. In this orientation, the servo arm will point to the top of the picture.



I've placed the servo arm on the spline output shaft as close as possible to center in this picture. Next...



... I've used trimming in the Vortex to make sure the arm is pointed perpendicular to the side of the servo case. At this point, install the fastening screw to the arm and servo output splines as shown earlier.



When the tail servo is installed, this will be its orientation in the inner frame.



In order to protect the servo leads I installed heat shrink tubing over the leads for the front two cyclic servos.



I cut the heat shrink tubing so its length is approximately 55 mm from the start of the servo connector.

I'll be installing heat shrink on the elevator servo lead as well, but not until later when I know the exact length the lead needs to be--it will be bundled to that length.

I wasn't happy with the way I routed the tail servo lead in the test model, so I will be investigating that as well as heat shrinking that lead if necessary in a later step.

Next up, we'll start showing you what's included in the kit and then we'll start building! That will likely be Monday or Tuesday this week, depending on mail delivery.

Scott
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Old 12-31-2016, 02:39 PM   #12 (permalink)
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Excellent Scott! If I were to build an eXo I would probably be choosing almost the same components including the Scorpion 4025-1100 KV.

Initially I was looking at the Scorpion 4020-1100KV but noticed the exposed shaft is not long enough. The 4025-1100KV's exposed shaft length is almost the same that of the Compass Rage.

BTW the 4025-1100KV is a BEAST... Very easily hauls my 550U around.
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Old 12-31-2016, 04:52 PM   #13 (permalink)
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Thank you, sir! I have been using Scorpion 1100kv motors for a long time, too. They are powerful and great workhorses!

Scott
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Old 12-31-2016, 05:18 PM   #14 (permalink)
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Quote:
Originally Posted by dunkonu23 View Post
I have been using Scorpion 1100kv motors for a long time, too. They are powerful and great workhorses!
Scott
I have not seen the Rage specs. Can anyone provide a comparison? It looks like the Rage cost if bought as kit is on $75, vs. $170 for the Scorpion. Just curious how big a difference.
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Old 12-31-2016, 06:27 PM   #15 (permalink)
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Quote:
Originally Posted by Wargamer View Post
I have not seen the Rage specs. Can anyone provide a comparison? It looks like the Rage cost if bought as kit is on $75, vs. $170 for the Scorpion. Just curious how big a difference.
Here you go... Got it from the German forum:



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Old 01-01-2017, 06:30 AM   #16 (permalink)
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Happy New Year Guys!

Scott Thank you for your awesome work!
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Old 01-01-2017, 10:05 AM   #17 (permalink)
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Happy New Year, Sebastian! Happy New Year family and everyone! I hope everyone has the best year ever!

And thanks to you, Sebastian for designing all the awesome models we've been privileged to represent! As I told you at IRCHA and especially after testing, I think the EXO is going to be THE model to have!

Scott
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Old 01-01-2017, 12:23 PM   #18 (permalink)
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Looks like Monday is a Federal holiday so no mail, no EXO. Oh, well. We'll continue soon!

Scott
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Old 01-03-2017, 03:56 PM   #19 (permalink)
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Default It's HERE!!!!!

Here are some quick box and inside the box shots of the new Compass EXO 500 helicopter!



The shipping box! Excuse my feet, I'm excited!



The box in the box! No feet!



Boxes in side the boxes and the boom and tail control rod!



The beautiful Red EXO 500 canopy, wrapped for it's protection!



Top foam layer of the "guts" box!



The beautiful EXO 500 monocoque chassic and inner frame!

We'll get started building this beauty ASAP! In the meantime, have fun with yours!

Scott
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Old 01-03-2017, 04:47 PM   #20 (permalink)
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Beautiful! Worth the wait.

Look forward to hearing the flight report.
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