hi recently we've released a smart video
card for Raspberry Pi we've released a
trailer about the car and what it can do
but how to view this card or how to
build a similar water or cell the wiring
of modules and board software settings
the video display etc so now we are
making this tutorials to show the
details let's get started so this is our
smart video card kit let's open the boss
and see it was packaged in the kit a
user manual we've spent a lot of time
and energy on the guide which is
illustrated with the rev description of
each module assembly instructions and
the detailed steps to configure the
software so it would be a great helper
for you to further learn the card and
even other robot cards see from the top
a paper card explaining the related
materials such as the code and user
manual in PDF can be found and
downloaded in the loan section of our
website we can see under the menu the
parts are separated by cross the paper
boards so they can be more organized
then let's get to the parts I've taken
them all out and let's go through the
whole kit the acrylic place
the driver and power modules to gear
reducers to s/390 servos a USB camera
text of standoffs screws and nuts across
socket wrench a cross screwdriver with a
USB cable in a plastic bag everybody
jumper wires a battery holder and four
wheels
so these are all powers packaged in the
kit now let's do the car first assemble
the front wheels take out the place
check whether there are residues
remaining in the house of the plates it
is important to clear them all now to
put a subsequent assembly now the
stickers are removed for each pack of
fasteners we provide it to more than
needed then take out the French bearings
the m4 self-locking nuts and m4 by 25
screws then the two front wheels
so here are two pairs of acrylic place
and we'll about how to distinguish the
front wheel and rear wheel you may
observe the middle part the center with
a concave service is the frame wheel and
that with a convex surface is the rear
wheel so take out to m4 by 25 screws to
m4 self-locking nuts and the two French
bearings
then you sir the screw into French pay
attention to the face of the French
press the French into the plate and you
can hear a click assemble the place and
then to the wheel then fasten them with
the nut here you may need the cross
socket wrench
and use a screwdriver to tighten them
please pay attention do not over-tighten
the nut or else the wheel cannot spin
flexibly neither too loose in case the
gap between the parts is too large then
assemble the other front wheel so the
two front wheels are assembled here you
need to pay attention to the direction
of the wheels see the acrylic plate the
notch of the place should be symmetrical
next we'll assemble the back half
chassis and rear wheels
take out the two wheels the two gear
reducers the pack of m3 by 30 screws m3
by 24 copper standoffs and m3 nuts also
you need the cross socket wrench first
reassemble the gear reducers
before that insert a polite to fix the
gear reducer through the chassis place
the gear reducers on the chassis and pay
attention the wires should be faced
inward then put another plate pick up 4
m3 by 30 screws and 4 m3 nuts
align the hose of the gear reducer and
the plate insert the screw
first and then with the nut
then assemble the other reducers
similarly now the two gear reducers are
finished the wire should be like this
then assemble the real wheels to the
chassis it may take some skills to press
the wheels in now the two wheels are
assembled to the chassis take 4 m3 by 24
cobblestone dogs and 4 m3 nuts
in sir the standoffs into the plate
first and then with the nuts the
standoffs are all fixed they are to
connect the chassis with the other plate
so now the two rear wheels and the plate
are assembled next to assemble the other
plate but before that we need to adjust
the swivel take out the mg 90 servo take
out a rocker arm plug it to the servo
randomly rotate it again and we can see
the rocker arm can rotate from 0 to 180
degrees since the rotational angle is
restricted by the gear trains inside
already what we need to do is to match
the rocker arm to the servo shaft in a
position where the arm can rotate within
the same angle range
first move the M left and right and stop
at your leftmost position with the short
end of the servo toward you so this is
the 0 or 180 degrees of the servo then
remove the rocker arm place it along the
x axis of the shovel turn it from 0 to
180 degrees again then the servo is
adjusted put the circle aside and make
sure the shaft of the servo will not be
moved before it is assembled again but
if you moved it acidentally just take
the adjustment procedures again next to
assemble the steering linkage with the
servo rocker arm then along the second
hole to the end of the rocker arm with
the plate
insert a screw tighten them but be
careful not to over-tighten this crew
give a gap about one millimeter between
them so the plates can move smoothly
nice to connect the steering servo with
the upper plate take out the plate the
servo and the steering linkage since the
holes on the plate are almost symmetric
refer to the exceptional hole here to
tell a space place it flat the front
part the back part put a play with this
hill on your left so now it faces up
then pluck the shovel into the hole of
the plate and pay attention the servo
shaft should be toward the friends of
the plate then take out 2 m2 by 10
screws and 2 m2 nuts
make sure again the whole is on your
left so the server is on the plate and
the servo shaft is should be toward the
friends insert the screws first and then
with the nuts
here you may need to use the socket
wrench use the end with the smallest
diameter so now the servo is tightened
to the plate then assemble them with the
steering linkage
pull out the drugget arm into the circle
shaft rotate the servo rocker arm and
see if it can spin freely then take out
the M 2x4 screw which is contained in
the package of the servo is the shortest
one in the package
rotate the rock around again and make
sure it can spin to your left and right
and won't get stuck then insert a screw
tighten them check again whether it can
move flexible next we are going to
assemble the French chassis and the
other plate here we use 4 m3 by 24 Kappa
standoffs and 3 by 8 screws and M going
nuts then the two front wheels
and the upper age as assembled first
insert the stand-ups into the French Fe
here choose the metric once and then two
more behind for step tops - to be
assembled on the chassis then fast and
then with the nuts and use a cross
socket wrench to help you tighten them
then assemble the friend wheels with the
plate and the steering linkage for the
convenience of assembly for the play to
face down then take the two front wheels
pay attention to the direction of the
plate on the wheels the two boundaries
of the plate should be inserted into the
host of the upper plate and the linkage
now stick the plate of the wheel into
the other play and the steering linkage
it's a little bit difficult to insert
this so give more patience and also then
place the front chassis align the
standoffs on the chassis to the upper
plate and also stick the pouch of the
front wheel to the house of the French
chassis move the wheels a little bit to
make them aligned and when you hear a
click the wheel is assembled
successfully
spin a bit and attend the wheel a bit to
see if it can move smoothly now the
front part of the car is assembled
insert the screws to fix them and pay
attention this screws should be tight a
little bit looser so the wheels can spin
freely
these two screws should be isin't harder
now the wheels can spin freely and turn
left and right smoothly next fast turn
some copies stand ups to the upper plate
take out the m2 point five by eight
copper standoffs and M 2.5 nuts then
assemble the stand-ups to the plate they
are used to hold the bores and more
juice forced in tops to hold one circuit
board so you can place the nuts below
the plate
align the nuts with the hole then insert
a send-off
so these four standoffs are to hold a
circuit board
here and now the circuit board another
board
here place the Raspberry Pi put aside
the two remaining nuts in case of
missing ones during the assembly next
assemble the back chassis and upper
plate take out four M 3 by 8 screws
align the standoffs on the back shell
see to the house of the plate these four
homes remain it on the plate insert the
screws tighten them with the screwdriver
so now the frame of the car is finished
spin and turn the wheels a little bit to
see if it can move smoothly
next we'll continue the rest assembly
and also the module installation see you
then
