If it is a teardown, remove the confidential note, delete ... · PDF fileOculus Rift Detail Slide – Copy and use for details. Title various slides to correspond with different portions

© 2016 www.pemnet.com 1

Oculus Rift

January 2017

by Jon Brunk

PennEngineering®

Title Slide – Do Not Remove Enter the Name and Model of the object being torn down.

If it is CSI, leave the Confidential note.

If it is a teardown, remove the confidential note, delete the CSI logo.

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Oculus Rift

Introductory Slide – Do Not Remove Enter the name of the object being torn down

and a picture of the assembled product.



Details & Findings

Pictures and Description of the

Oculus Rift and our disassembly

process.

Section Heading Slide – Do Not Remove Enter the Name of the object being torn down.



Oculus Rift

Detail Slide – Copy and use for details. Title various slides to correspond with different

portions of the object being torn down (e.g.

Case, charging station, etc…)



Oculus Rift






Facemask Cushion

• Cushion simply slides into

place

• Easy to remove and insert






Oculus Rift






Headphone






Headphone

• Round metal cover held

by light adhesive

• Three openings for stud

and contact pins to pass

through






Headphone

• Free spinning internally

threaded fastener

• Threads onto the stud

installed in headphone

• Chamfered bottom sits in

a countersunk hole in the

head strap






Headphone

• Two screws attach metal

ring over a plastic

housing into plastic boss

• Metal ring lets the

housing rotate






Headphone

• End cap snaps into place

• Prevents rest of assembly from falling out






Headphone

• Headphone pedestal

fastened by 1 shoulder

screw

• Pedestal snaps into

headphone






Headphone

• Headphone assembly

partially disassembled

• Headphone rotates on a

pedestal made up of five

components






Headphone

• Threaded boss to attach

the headphone assembly






Headphone

• Stud has a knurled head

• Pressed (or molded) into

plastic housing

• Connector pins press fit

in plastic






Headphone

• Hinging mechanism in

headphone

• Allows headphone to

retract from user’s ear

• 6 hinge pins and 3

springs in assembly






Facemask Cover






Facemask Cover

• 6 screws – 2 top and 4 bottom hold cover

over inside of device (in deep recesses)






Facemask Cover






Facemask Cover

• 6x screws attach

fabric between two

pieces of plastic

• 3 clips around each

opening must be

detached from the

lens body – this is

difficult due to their

location






Interior of Unit

• 8x total screws attach

body to outer case

• 4x total (2x per side) large

screws – in red & yellow

• 3x small screws to bottom

surface – yellow

• 1x shoulder screw (slide

25)

• Thread into plastic bosses






Interior of Unit

• Detail of 2x small screws

into bosses along bottom

surface






Interior of Unit

• 1x shoulder screw above

PC board

• Threads into boss in front

surface

• Passes thru a rectangular

opening in outer case






Lens Adjustment

• Lenses adjust with a knob

on bottom

• Knob has two press fit pins

with a spring on each

• Grooves on knob push

rack and pinion gears






Interior of Unit

• Main body and outer case

attached by 3 flex cables






Small Side PC Board

• 2x screws attach a metal

cover over PCB and flex

cables

• Also has two molded

alignment pins






Small Side PC Board






Small Side PC Board

• PC Board attached to

head strap by three flex

cables

• PC Board attached to

device with two screws

(circled in yellow)

• This PCB also has a

cable attached at top and

bottom






Disconnected from Case






Top PC Board • Large PCB running across the top of the unit.

• Two attachment points – one for each lens.

• PCB sits inside a plastic frame.

• Frame is held by 2 screws (yellow)






Top PC Board






Top PC Board

• PC Board attached to plastic frame

with 6 screws (yellow)

• One additional screw holds a

bracket around the HDMI port (red)






Top PC Board

• Hardware around HDMI port

• D-shaped boss

• Two molded alignment pins






Top PC Board






Top PC Board Frame

• All bosses and alignment

points on PCB frame

• Additionally there are two

snap in locations to

secure the board (blue)






Front Cover Attachment

• 4x screws along bottom

of device

• Thread into bosses in

front cover






Front Cover Attachment

• Bracket that holds lenses is

attached to front cover by a

total of 6 screws:

– 2 per side (yellow)

– 1 at top (red) and bottom






Lens Frame

• Each lens uses 2

screws to attach to a

metal frame

• Two tabs on each

side of each lens fit

into openings in the

metal frame






Lens Frame






Lens Frame

• With front cover removed






Lens Frame

• Lens adjustment mechanism

• Adjustment knob moves a rack

• This turns a pinion, which

pushes a right angle double

sided rack, that turns a series

of 3 gears

• The final gear pushes two

racks that are part of the frame

the lenses attach onto

– One on each side of the gear

• These frames move the lenses

outward and inward

• Frames ride on hollow tubes






Lens Frame

• The three sets of gears

are attached with a pin

and e-clip






Front Cover






Outer Case






Head Strap

• Head strap is

fastened by one

screw

• Inner and outer

halves snap

together






Head Strap

• Outside surface of

headphone attachment

• Two recesses for

electrical connection

with headphone

• Inside surface of

headphone attachment

• Free spinning flat head

internally threaded

fastener






Head Strap

• Two screws fasten the springs to the strap

• Thread into metal boss






Head Strap

• Velcro for head strap

attaches with adhesive






Head Strap




• 4 screws attach a hinging

mechanism inside the

case

• Microphone covered by

tape (bottom right)



Oculus Rift • Disassembled view

Disassembled – Do Not Remove Enter the name of the object being torn down

and a picture of the completely disassembled

product.



Fastener Summary

A total of 74 fasteners were found

in the device

Section Heading Slide – Do Not Remove



Fastener Summary

Detail Slide – Copy and use for details. Create a table of the fasteners found in the teardown.

Note thread sizes, lengths, drivers, etc. Multiple pages

can be used for different style fasteners

• 2x Free Spinning Nut

– Slide 10

– 1 per side

– Attach headphone to strap

– Slot Drive

– M3 Thread

– Chamfered Head

– 11 mm Outer Diameter

– 3.9 mm Height

– 4.25 mm Barrel Diameter

• 4x Screws

– Slide 11

– Inside headphone assembly

– #0 Phillips Drive

– Thin Head

– M1.4 Thread

– 4 mm Overall Length

– 0.5 mm Thick Head

– 2.8 mm Head Diameter



Fastener Summary




• 2x Shoulder Screw

– Slide 13

– 1 per Headphone

– T7 Torx Drive

– Cheese Head

– M1.8 Thread


– 2 mm Thick Head

– 5 mm Long Shoulder

– 5 mm Head Diameter

– 3 mm Shoulder Diameter

• 2x Broach Stud

– Slide 16

– Inside headphone assembly

– Knurled Head

– M3 Thread



Fastener Summary




• 26x Screws – 6 locations

– Slide 19, Slide 21, Slide 22,

Slide 27, Slide 29, Slide 33

– 3IP Torx Plus

– Pan Head

– M1.4 Thread

– 4.5 mm Overall Length




– Slide 22, Slide 50


– Pan Head

– M3 Thread






Fastener Summary




• 1x Shoulder Screw

– Slide 24


– Cheese Head

– M1.4 Thread


– 1 mm Thick Head

– 1.7 mm Long Shoulder


– 2.4 mm Shoulder Diameter


– Slide 31, Slide 38, Slide 39


– Pan Head

– M2 Thread






Fastener Summary




• 4x Screws

– Slide 37


– Pan Head

– M1 Thread




• 3x E-clips

– Slide 43

– 1 mm Pin Diameter

– 1.5 mm Shoulder Diameter



– 2.75 mm Shoulder Length



© 2016 www.pemnet.com

• 4x Screws

– Slide 48

– 2IP Torx Plus

– Pan Head

– M1.6 Thread




58

Fastener Summary




• 2x Screws

– Slide 46


– Pan Head

– M1.6 Thread






Alternate Solutions

PennEngineering® recommendations

of alternate hardware and cost savings

opportunities.




Spinning Clinch Standoff

• Self-Clinching Spinning

Standoff

• Would require a straight

thru-hole only

• Would permanently install

and would be freely

spinning after installation

Detail Slide – Copy and use for details. Note any new solutions (PEM or non-PEM).

Highlight the advantages and disadvantages

of each.



Broach Stud

• Type KFH broaching studs are designed to

press into a plastic hole.

• Straight thru hole is all that is required.

• Part can be modified to fit a wide variety of

applications.

• Available in aluminum for weight reduction



of each.



TackSert® Pins

• Broaching TackSert® Pins can

permanently install into plastic

materials.

• The fastener can be designed with a

shoulder for a gear to rotate around.

• Can replace an e-clip and pin with a

one piece fastener.

• Made from high strength Aluminum

for weight reduction.



of each.



SpotFast® Fasteners

The SFK SpotFast® can clinch into metal and broach into

plastic. It can permanently join two dissimilar materials as

in the above situation. In this case it would replace the

bent metal with a flush fastener.



of each.



TackSert® Pins

Example of three locations

that could replace screws

with press-in TackSert®

Pins for permanent

installation.

Made from aluminum, to

save weight, or stainless

steel.



of each.

Plastic Frame PC Board to Frame Facemask



Interference Pins

PennEngineering is able to cold form a wide variety of pins

to tight dimensional tolerances from different materials.



of each.



microPEM® Screws

PennEngineering manufactures a

wide range of micro screws. These

can be made from high strength,

lightweight aluminum with

dimensions and features per

customer requirements.



of each.



Conclusions and Summary




Oculus Rift

The Oculus Rift is a lightweight device that utilizes

plastic molding and light metals. Almost all

fasteners thread into plastic bosses using high

helix screws. Since it is a wearable, weight is very

important, hence why the primary use of plastic

wherever possible. Most of the components of the

Oculus Rift are straightforward enough to

disassemble if required.

Detail Slide – Copy and use for details. Summarize the findings and alternate

solutions.


Documents

If it is a teardown, remove the confidential note, delete ... · PDF fileOculus Rift Detail Slide – Copy and use for details. Title various slides to correspond with different portions