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Ghettostation Antenna Tracker Case

by IdefixRC, published

Ghettostation Antenna Tracker Case by IdefixRC Nov 16, 2014

Summary

My case design for the excellent Ghettostation Antenna Tracker from KipK.
The case was inspired by the EZ Antenna Tracker / Ground Station, EZtracker Immersion RC by RcHobbysUK here on Thingiverse.
The case features:


  • 0-135 degree Tilt Head
  • 360 degree Pan mount (ball bearing supported)
  • Antenna quick change/release to allow use of multiple different antennas
  • ImmersionRC Duo 5800 V3, V4, Uno5800 V2 and Uno2400 Video RX mount (single mini DIN connection, lever for frequency selection)
  • Lawmate 2.4Ghz mount
  • 3DR Radio Telemetry Module (900Mhz or 433 Mhz) mount on the tracking plate
  • Easy access Battery compartment for up to 3700mAh 4S LiPo Pack
  • LCD mount and holes for the 3 selection buttons
  • Arduino Mega 2560 Rev 3 Mounting tabs including USB connector cut out
  • Mounts for Battery Voltage Alarm, Power On/Off, Ground OSD Power On/Off, 4x Video out, 1x T-Style/Deans Power connector
  • Tripod Quickmount and additional feet for table top/car roof top positioning
    Please refer to the instructions for details on the used components and links to the Software and Forum.

Updates:

21/11/2014:

  • updated rear case with more servo clearance to accommodate taller servos such as the GWS S125-1T/2BB Winch Servo and nut slots added for reach cover mount (the plastic wears out quite quickly if the case is opened and closed multiple times. Adding a nut solves this).
  • Servo spacer for GWS S125 added

31/12/2014:

  • ImmersionRC Duo5800 mount renamed to DUO5800_V3 in preparation for release of a mount suitable for the DUO5800 V4

4/1/2014:

  • Happy 2015 everyone. Mounting plate for DUO5800 V4 added. You will need to print 2 of the Duo5800_push.stl and Duo5800_lever.stl for the V4 of the DUO5800 as it has both Band and Frequency selection buttons. As I'm not the proud owner of a V4 and the design is based on drawings received from ImmersionRC, please do let me know in case changes are required once you tested it out (and also drop a note in case it works fine as is). Thanks

27/1/2015:

Turnplate updated to allow removal of the top without the need to pull the cables through before.
29/1/2015:
Added RX mounts for ImmersionRC Uno5800 V2 and Uno2400 (same mount as Uno5800) receiver and Lawmate 2.4Ghz receiver

16/2/2015:

After receiving feedback that a large part of the files failed to print in Slic3r and Cura, I believe I found an error in the scaling method I used to export the files. All files are updated and check out in 3 slicers I have tested so far. Please report back in case there are still issues.
Other changes:

  • Added spacers for the bearings as, depending on servo and filament used there is a gap between bearing and turnplate. Print the required thickness and insert it between the bearing mount and the rear top cover
  • updated the rear case to allow the use of a M4 nut for the battery door as the plastic wears out after some time.
  • 2 versions of the rear case are not available. 1 version comes with 4 video connectors and 1 Deans connector, the other with 2 video connectors, one deans and one XT60 connector.

01/03/2015:

  • Added mirror version of the Uno5800 Mount in case you want to install it on the left side or have one Uno5800 on one and a Uno2400 on the other side.

29/03/2015:

  • Corrected Uno2400 mount added (left and right side)

11/04/2015:

  • added modular Antenna mounts. Allows quick change of the following Antenna types:
    1) ImmersionRC 5.8 Patch (IMRC5.8_Lock.stl)
    2) ImmersionRC 2.4 Patch (IMRC2.4_Lock.stl)
    3) Circular Wireless 5.8 Helix (CW5.8_Lock.stl)

You will need to replace the tilt head plate with the new lock plate (Head_Lock.stl).

Instructions

Print with 30% infill except for the pin which should be printed with 100% infill for added strength.

Some parts need supports:

  • Case front
  • Cover front
  • Case rear
  • 5800 Mounts (both Duo and the Uno versions)
  • 3DR Case
  • Antenna Plate

The case is designed for a Ghettostation Antenna Tracker based on a Arduino Mega 2560 (Teensy is also possible but not used in my design).

Download the full Ghettostation Code here (check forum below for latest fixes):
https://github.com/KipK/Ghettostation
Ghettostation Wiki and setup guide:
https://github.com/KipK/Ghettostation/wiki
Ghettostation Forum:
http://forums.openpilot.org/topic/20823-ghettostation-antenna-tracker-ground-osd/
Shopping list:
===
Main Tracker:


1x Mega 2560 R3 ATmega2560-16AU Board plus USB Cable (http://hobbyking.com/hobbyking/store/__46904__Mega_2560_R3_ATmega2560_16AU_Board_plus_USB_Cable.html)
1x IIC/I2C/TWI Serial 2004 20x4 LCD Module Shield For Arduino UNO MEGA R3 (http://hobbyking.com/hobbyking/store/__26852__IIC_I2C_TWI_Serial_2004_20x4_LCD_Module_Shield_For_Arduino_UNO_MEGA_R3.html)
1x FrSky Battery Voltage Sensor (http://hobbyking.com/hobbyking/store/__16671__FrSky_Battery_Voltage_Sensor_FrSky_Telemetry_System_.html)
1x 5V BEC (http://hobbyking.com/hobbyking/store/__10312__Turnigy_5A_8_26v_SBEC_for_Lipo.html)
1x Standard Analogue Servo (I used a Hitec HS-325HB) for the tilt head
1x GWS Digital Servo Sail Winch S125 1T 2BB 360-degree (http://www.goodluckbuy.com/gws-digital-servo-sail-winch-s125-1t-2bb-360-degree-7-6kg-106oz-in-1-28sec.html - I tried the HK analogue type as well but it does not work very well)
1x Ball Bearing 8x22x7mm (http://shop.rotor.com.sg/show-detail.asp?prodid={0CF678C9-B488-4739-9638-BA12492E7EF7}&pn=1)
8x Ball Bearing 3x10x4mm (2x http://hobbyking.com/hobbyking/store/__11726__HK600GT_Ball_Bearings_Pack_3x10x4mm_4pcs_bag.html)
3x Push Button (12mm installation diameter)
1x Piezo Buzzer
1x 100Ohm Resistor
4x Video Composite connectors
1x Deans/T-Style female power connector
1x Main Power Switch (see case front left side for dimensions)
1x OSD Power Switch (optional - see case front right side for dimensions)
1x 6Pin DIN cable to connect the DUO receiver to Video out (Audio modem for telemetry if used)
3x 43mm Nylon or metal spacers with M3 inside thread

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Is it posible to order one completed?

Sure. Send me a PM with your email and we discuss what you need.

Feb 23, 2016 - Modified Feb 23, 2016

Hi. I've started printing these parts for my ZMR250, which doesn't have GPS. Does this work based solely on tracking the video signal or does it require telemetry and/or GPS? Thanks.

Yes, you need GPS and a telemetry down link. The Ghettostation SW is not able to track based on receiving side RSSI signal.

which bearing spacer should I print?

Depends on the pan servo and servo arm/disk you use. You can eitger assemble first, measure the gap between bearings and case and print the right spacer afterwards or print all and select the one which gives the best results.

using GWS 360 servo, I guess I print the bearing holder first then

Yes, you want to install the spacer which allows the bearing to run freely on the case. To thick and they will bind, to loose and the tracking head will be able to swing/wobble

I opted to use 3d printed roller with the same size to replace the bearing crude but works :), save some time ordering those bearing work just fine with roller

I have a 200x200mm build plate will i be able to print all these parts for this tracker? Thanks

yes, it should work.

can any one provide me with all the setting for the v1 im having problems with it tracking im using everything that they requested even the antenna that's from fat shark and yes i have updated to the controller.
it just wont track it very accurate and how fare away do u have to get it to work ?

Sorry, what V1 are you referring, too? The ImmersionRC tracker?

yes the immersion RC tracker im hopping that s someone can give me all to setting that they are using with theGhettostation Antenna Tracker Case it ill help me get it to work better it just wont stay with my quad

Although I made the case for the ImmersionRC tracker i yet have to test (lack of time). Did you contact IMRC support yet? I assume there must be an issue with either the servos (binding or positioning issues) or the way the home location is stored.

Hello, the HS-325HB servo is discontinued. I tried another hitec servo (hs-625) and it doesn't fit. Could you suggest another servo ?

I think I answered myself to the question. In the EZ antenna tracker instructions, they suggest HS-322HD and it doen't seem to be discontinued. At least ebay have some.

You can get the HS-325HB here: http://www.rc-warbirds.com/product_info.php/cPath/94/products_id/333
Or you can use other standard size servos such as the HS-311.
The HS-325HB dimensions are 40 x 20 x 37mm so any similar size servo should work.

Hi, Where did you get the power switch ? I cannot find it on ebay or my local automotive store..

I picked them at one of the many electronic shops here and unfortunately do not have a part number. I will try and see whether I can find a similar one online and will post it here. Alternatively get a round switch with similar diameter (the face plate is not that important)

What are the 4 big holes under the case for ? What we are supposed to put there ?

Mar 21, 2015 - Modified Mar 21, 2015
IdefixRC - in reply to fantasiiio

They are for the feet. Print 4 of them and glue/screw them in place (you can see them in the picture above as well - the black parts). You can add furniture felt pads into the recess on the feet to protect the surface (e.g. car roof) on which you place the tracker. The feet are high enough to still allow the tripod mount adapter to remain in place in the middle of the tracker.

ooohhh... I see. I did not notice them. Thanks.

Firstly let me say what an awesome piece of work this is, I can wait to get printing it, however I'm falling on the first part. Trying to print bearing.stl & Slicer is won slice because of the following errors any once have any ideas? Thanks

22:48:12: Thread 3 terminated abnormally: Argument "" isn't numeric in numeric gt (>) at /Applications/Repetier-Host Mac.app/Contents/Resources/Slic3r.app/Contents/Resources/lib/std/Slic3r/Layer/Region.pm line 426.

22:48:20: Argument "" isn't numeric in numeric gt (>) at /Applications/Repetier-Host Mac.app/Contents/Resources/Slic3r.app/Contents/Resources/lib/std/Slic3r/Print.pm line 639.

Thanks for the report. It looks like that the design files have issues with Slic3r and Cura :-( I need to get to the bottom of this.
I send you a PM so we can get in touch directly and I can send a few versions over for you to test before I refresh all the files here. Thanks

Feb 16, 2015 - Modified Feb 16, 2015
IdefixRC - in reply to IdefixRC

I did upload a new version 2 of the bearing. Can you give it a try please?
Update of the update: I think I found the issue. All files are now updated. Please give it a try and let me know

I actually reinstalled Repetier & Slic3r before i seen your reply, very odd as the original file now slices fine. Its currently printing so will let you know what how it comes out

Please use the new files. The old ones had some strange behaviors and even though they printed ok for me they might cause you issues/waste filament.

Would be great if you would share a picture of you finished print here :-)

Hello,
This is a fantastic adaptation for the ghetto station. I prefer this design rather than the original because the receiver rotate with the antenna.

I have a question, do you have an idea where I can find a 43mm spacer ?

I used a 35mm and 8mm spacer together. Alternatively buy 35mm or 40mm nylon spacers (the type with screw holes on both sides) and cut one spacer to the correct length so it comes up to 43mm combined. A longer screw on one side will keep the cut, the full length and one side of the tracker arm in place (I did this with the 2nd one I printed for the EzTracker from ImmersionRC).

Nice build. I'm glad to see some peoples now use Ghettostation. ;)

All this is possible because you wrote the code for it. Thanks a lot for that !

This comment has been deleted.

Dude,

can you upload a picture of the PAN servo installation, or perhap what it look like inside the casing?

Thanks!

Nov 18, 2014 - Modified Nov 19, 2014
IdefixRC - in reply to skelator

In a nutshell: The case has a mount for the pan servo. Simply slot it and and fix it with 4 screws. The bearing ring requires the addition of 8 3x10x4mm ball bearings and is afterwards screwed to the top plate (holes line up). Finally the pan servo disc (supplied with the servo) is screwed to the bottom of the antenna plate. The plate rests on top of the bearing ring and slots into the servo (servo arm/disc mounted to the bottom of the plate). A hole in the middle of the turn assembly allows you to secure the disc with the supplied servo screw to the pan servo.
I will try and add some picture of the 3D rending tomorrow to illustrate the process.

Update: Drawing added.

Hey Eric could you please contact me trough email i have a problem with a design and hoped you could help me out
[email protected]

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