GOMspace NanoStructure 6U User manual

NanoStructure
6U
Manual
6U structure for nano-satellites

2
Manual for NanoStructure 6U
2 November 2017
gs-man-nanostructure-6u-1.0
© 2017 GomSpace A/S
1Table of Contents
1TABLE OF CONTENTS................................................................................................................2
2CHANGELOG ...............................................................................................................................3
3INTRODUCTION...........................................................................................................................4
4STRUCTURE PARTS ...................................................................................................................4
4.1 STRUCTURE FRAME ............................................................................................................4
4.2 CORNER BRACKETS ............................................................................................................5
4.3 MOUNTING RINGS ...............................................................................................................5
4.4 KILL SWITCH.......................................................................................................................5
5HOLES AND SCREWS.................................................................................................................6
6ASSEMBLY ..................................................................................................................................7
6.1 STANDARD TIGHTENING TORQUE FOR SCREWS ....................................................................7
6.2 PC104 STACK ....................................................................................................................7
6.2.1 Step 1........................................................................................................................... 7
6.2.2 Step 2........................................................................................................................... 8
6.2.3 Step 3........................................................................................................................... 9
6.2.4 Step 4......................................................................................................................... 10
6.3 ASSEMBLING THE 6U STRUCTURE......................................................................................11
6.3.1 Step 1......................................................................................................................... 11
6.4 STEP 2 .............................................................................................................................12
6.4.1 Step 3......................................................................................................................... 12

3
Manual for NanoStructure 6U
2 November 2017
gs-man-nanostructure-6u-1.0
© 2017 GomSpace A/S
2Changelog
Date
Revision
Author
Description
2-11-2017
1.0
KLK
First release

4
Manual for NanoStructure 6U
2 November 2017
gs-man-nanostructure-6u-1.0
© 2017 GomSpace A/S
3Introduction
This manual provides on overview of the use, properties and assembly of the GomSpace
NanoStructure 6U. Each part of the structure is described in detail and it is shown how to assemble the
structure around your satellite hardware. The structure arrives assembled.
4Structure Parts
4.1 Structure Frame
Material: Aluminum alloy 7075-T7351
Size: 340.5 x 226.3 x 15.2 mm (not including plunger top)
Mass: 313 g

5
Manual for NanoStructure 6U
2 November 2017
gs-man-nanostructure-6u-1.0
© 2017 GomSpace A/S
4.2 Corner Brackets
Material: Aluminum alloy 7075-T7351
Size: 93.0 x 16.8 x 13.2 mm
Mass: 14 g
4.3 Mounting Rings
A and B (one ring) YA and YB (one ring)
Material: Aluminum alloy 7075-T6 (SN) Aluminum alloy 7075-T6 (SN)
Size: 95.0 x 95.0 x 6.0 mm 95.0 x 95.0 x 8.6 mm
Mass: ~14.4 g ~24.9 g
Rod
Material: Steel AISI 304
Size: 3.0 mm diameter x varying length
Mass: 0.0495 g/mm
4.4 Kill Switch
The structure arrives pre-mounted with a harness for each kill switch. The housing is glued to the
frame. Do not attempt to open it.

6
Manual for NanoStructure 6U
2 November 2017
gs-man-nanostructure-6u-1.0
© 2017 GomSpace A/S
5Holes and Screws
All threaded holes have screw lock helicoils. They are used for grounding and for preventing the screws
from getting loose. Do not use Loctite.
6U
side
3U side
2U side

7
Manual for NanoStructure 6U
2 November 2017
gs-man-nanostructure-6u-1.0
© 2017 GomSpace A/S
6Assembly
6.1 Standard Tightening Torque for Screws
Below is a table for suggested tightening torque for screws.
Screw Diameter [mm]
Torque [Nm]
2
0.315
2.5
0.65
3
1.14
6.2 PC104 Stack
The PC104 Stack is assembled prior to installing it inside the structure.
6.2.1 Step 1
Start with the B-ring, view the orientation in the illustration below. Insert four rods through the ring holes
and screw on four slotted nuts from the bottom. As an option 3 mm nuts can be used from the top side
to fasten the rods to the ring. In that case it is suggested to put a washer under the nut. Make sure the
end of the rods are at level with the bottom of the B-ring.

8
Manual for NanoStructure 6U
2 November 2017
gs-man-nanostructure-6u-1.0
© 2017 GomSpace A/S
6.2.2 Step 2
Start with a spacer and then alternate between a PCB and a spacer, and end with a spacer at the top.
Make sure the stack connectors between the PCB have a connection.

9
Manual for NanoStructure 6U
2 November 2017
gs-man-nanostructure-6u-1.0
© 2017 GomSpace A/S
6.2.3 Step 3
Place the A ring on top and fasten it with four slotted nuts.

10
Manual for NanoStructure 6U
2 November 2017
gs-man-nanostructure-6u-1.0
© 2017 GomSpace A/S
6.2.4 Step 4
Tighten all eight slotted nuts with 1 Nm torque. Measure the height of each corner to make sure the
rings are parallel and that the holes in the rings fit into the holes in the structure (multiples of 11.1 mm).
Adjust height with shims.
Do notice that the nuts from step 1 and the spacers in step 2 are not included.
The stack is now ready to be installed in the structure.

11
Manual for NanoStructure 6U
2 November 2017
gs-man-nanostructure-6u-1.0
© 2017 GomSpace A/S
6.3 Assembling the 6U Structure
6.3.1 Step 1
Place the mounting rings, PC104 stacks and other units on top the structure frame. Fasten them from
the bottom using the correct screws. Do not tighten the screws yet.
Insert the corner brackets. Each corner is fastened with two screws. Insert the screws, but do not
tighten them.

12
Manual for NanoStructure 6U
2 November 2017
gs-man-nanostructure-6u-1.0
© 2017 GomSpace A/S
6.4 Step 2
Place the remaining structure frame as shown below and fasten them with screws. Do not tighten them
yet. Make sure the kill switches are in the same end.
6.4.1 Step 3
Now all the screws must be tightened. One by one tighten the screws in the corner brackets with a
quarter turn, then start over with another quarter turn, repeat until torque limit has been reach. After
that, tighten the remaining screws one after another with a quarter turn each until torque limit of all
screws is reached.
The 6U structure is now fully assembled.