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© 2016 www.pemnet.com 1

PennEngineering®

Samsung Gear VR April 26, 2016

by XiaoMing Chen & Larry Zhang

http://www.pemnet.com/

© 2016 www.pemnet.com

Samsung Gear VR Overview

2



Samsung Gear VR

Details & Findings

Pictures and Description of the

Samsung Gear VR and the

Disassembly Process.

3



Sealing Rubber Plugs Removal

Six screws in total behind the five

rubber plugs, with the plugs

removed from the plastic front

cover all of the fasteners appeared.

Screws

4



Self-Tapping Screws Removal

Six self-tapping screws with 00#

Phillips driver are removed from the

front cover of the VR. The screws

The screw characteristics:

• Pan head

• DELTA PT16x4.5 mm overall length

• 2.4 mm head diameter

• 0.7 mm head thickness

• 00# Phillips Recess

• Self-tapping threads

• No locking patch used

• Nickel plating

Screw engagement:

5



Screws Removal

6

Eight self-tapping screws with 00#


front cover of the VR.

•The screw characteristics:

• Pan head







• Nickel plating

Screw engagement:



Screws Removal

Four self-tapping screws with 00#




• Pan head







• Nickel plating

Screw engagement:

7



Screws Removal

8

Six self-tapping screws with 00#




• Pan head







• Nickel plating

Screw engagement:



Screws Removal

9

Three self-tapping screws with 00# Phillips

driver are removed from the plastic frame

inside the VR.


• Pan head







• Nickel plating

Screw engagement:



PC Board Removal

One piece of PCB is removed

from the plastic frame inside the

VR.

No fastener found in the

disassembly process.

10



Plastic Frame Removal

11

The plastic frame is removed from

the VR.

No fastener found in the

disassembly process and

four bevel gear driving couples

engaged in the frame .



Bevel Gear Driving Couple Removal

12

The plastic frame is removed

from the VR.

Four screws appeared in the




Bevel Gear Driving Couple Disassembled

13

The bevel gear couples are

disassembled. In this step four

mould-in threaded inserts appeared.


• Pan head

• M1.4 overall length




• ISO metric threads

• Nylon Locking patch used

• Black nickel plating

Screw engagement:



Mould-in Threaded Inserts Removal

14

Four mould-in inserts is

removed.

Refers to drawing on the left

for the insert characteristics.



Side Circuit Board Removal

15

The side circuit board is

removed out of the VR.

Three threaded inserts found

and one screw appeared in the




Inserts Removed out of Side Circuit Board

16

The side circuit board is

moved out.

Refers to drawing on the left for

the insert characteristics.



Bevel Gear Component Removal

17

With the bevel gear component

being removed out of the VR, two

screws are appeared.


• Flat head

• M1.6 x 4.8 mm overall length






• Nickel plating

Screw engagement:



Bevel Gear Component Disassembled

18

With the two screws

disassembled two inserts are appeared.


•Flat head

• M1.4 x 4.5 mm overall length





• Nylon locking patch used

• Black Nickel plating

Screw engagement:



Brass Insert Removal

19

With the two screws

disassembled two inserts are

appeared.

Refers to drawing on the

left for the insert

characteristics.



Driving Gear Couple Disassembled

20

The driving gear couples are

disassembled.

No fasteners being used for

parts fastening.

Note: In this step we discovered a

molded-in threaded insert.

Reference slide # 17 for the

engagement.




21

The teardown is done, one

M1.6 metric thread profile

mould-in insert found.

Reference slide # 17 for the

engagement.




22

The driving gear couples are

disassembled.

No fasteners being used for

parts fastening.

Note: In this step we discovered a

molded-in threaded insert.



Fastener Summary

Section Heading Slide – Do Not Remove

23



Fastener Summary

24

8 x

•Pan head

•DELTA PT16 x 4.5 mm overall

length

•2.4 mm head diameter

•0.7 mm head thickness

•00# Phillips Recess

•Self-tapping threads

•No locking patch used

•Nickel plating

• Reference slide # 6

4 x

•Pan head


length






•Nickel plating

•Reference slide # 7

6 x

•Pan head


length






•Nickel plating


6 x

•Pan head


length






•Nickel plating

• Reference slide # 5



Fastener Summary

25

4 x

•Pan head

•M1.4 x 4.5 mm overall length





•Nylon locking patch used

•Black Nickel plating


1 x

• Philips drive

•Flat head





•ISO metric threads


•Nickel plating


4 x

•Refers to drawing on slide # 14

3 x

•Refers to drawing on

slide # 16



Fastener Summary

26

2 x

•Pan head






•Nylon locking patch used

•Black Nickel plating


2 x

•Refers to drawing on slide # 19

1 x

•M1.6 Brass insert

•Reference slide # 20, 21



Alternate Solutions

PennEngineering® recommendations for alternate hardware and cost savings

opportunities.


27



Alternate Solutions- I


PennEngineering can be able to provide all of the

DELTA PT16 x 4.5 mm pan head self-tapping

screws with different design solutions. PEM has

license with Torx®, Torx Plus®, and Phillips® Drive

System, RemForm ® thread profile and has

capability to do both Zinc and Nickel plating.

Fig.3

24 x

• Pan head

• DELTA PT16 x 4.5 mm overall

length






• Nickel plating

28



Alternate Solutions - II


PennEngineering can be able to provide

different sizes and installation brass

inserts to meet the application

requirement. As a alternate solution,

TackSerts and Type MSIB microPEM

Insert shall be a good way to achieve

savings in operating cost and improve

efficiency in applications.

29



Alternate Solutions - III


PennEngineering can provide

different sizes of metric micro screws to

meet the application requirement. PEM

has license with Torx®, Torx Plus®, and

Phillips® Drive System and has

capability to do both Zinc and Nickel

with different color. As an alternative

solution, PEM TackSert can be used to

replace the traditional micro screws for

achieving savings in operating cost and

improve efficiency in applications.

30



Alternate Solutions - V


M1.6 threaded Insert could be

replaced by a new part depicted in the

print in the right. The design in the

right may be a good way to achieve

savings in operating cost and

improving efficiency in applications.

Fig.3

32




Conclusions and Summary

Samsung Gear VR

33




Conclusions and Summary

Throughout the entire teardown process, we discovered 24 pieces

DELTA PT16x4.5 mm pan head self-tapping screws, 10 pieces brass made

M1.4 threaded insert, 7 pieces metric profile thread screws and one brass

made M1.6 threaded insert in the device. All of these fasteners can be replaced

by PEM, same size micro fasteners.

As an alternate solution, PEM TackSert® fasteners can be used to

replace the traditional micro screws for achieving savings in operating cost and

improving efficiency in applications.

For the Alternate Solution – V, borrowing experience from the Core

Size TackSert design, manufacture, installation and testing the ideas illustrated

on the slide #32 may be a good way to achieve savings in operating cost and

improve efficiency in applications.

34


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