Please read the instructions that come with your HobbyCNC controller/motor kit very carefully. Here are a couple of gotchas that we found through trial and error:
- Watch your jumper settings, especially when setting Vref. These must match the software settings in EMC2.
- Install a bleed resistor on the big capacitor, and do not touch any part of the electrical system unless this cap is fully discharged.
- Install a power LED/1k resistor (not included) between 5V pad and ground on your board. This also shows you the status of the big cap.
- Use consistent motor wire coloring.
- Do not plug/unplug wires until the system has been powered down for a couple of minutes.
- Take the time to build a case. Good airflow for cooling is critical.
- The included power switch is meant for much smaller wires. Purchase a beefier one and throw the stock part out
- Solder all three drive chips to the board, then hold up the heat sink to mark all 6 drill holes at once. If you lay these out with a square beforehand you’ll never get the alignment right.
Revised 3 years ago
<p>Please read the instructions that come with your HobbyCNC controller/motor kit very carefully. Here are a couple of gotchas that we found through trial and error:</p> <ol> <li>Watch your jumper settings, especially when settingVref.</li>Vref.
These
must
match
the
software
settings
in
EMC2.</li>
<li>Install
a
bleed
resistor
on
the
big
capacitor,
and
do
not
touch
any
part
of
the
electrical
system
unless
this
cap
is
fully
discharged.</li>
<li>Install
a
power
LEDLED/1k
resistor
(not
included)
on
thebetween
5V
pad
ofand
ground
on
your
board.</li>board.
This
also
shows
you
the
status
of
the
big
cap.</li>
<li>Use
consistent
motor
wire
coloring.</li>
<li>Do
not
plug/unplug
wires
until
the
system
has
been
powered
down
for
a
couple
of
minutes.</li>
<li>Take
the
time
to
build
a
case.
Good
airflow
for
cooling
is
critical.</li>
<li>The
included
power
switch
is
meant
for
much
smaller
wires.
Purchase
a
beefier
one
and
throw
the
stock
part
out</li>
<li>Solder
all
three
drive
chips
to
the
board,
then
hold
up
the
heat
sink
to
mark
all
6
mount
holes
at
once.
If
you
lay
these
out
with
a
square
beforehand
you'll
never
get
the
alignment
right.</li>
</ol>
Revised 3 years ago
<p>Please read the instructions that come with your HobbyCNC controller/motor kit very carefully. Here are a couple of gotchas that we found through trial and error:</p> <ol> <li>Watch your jumper settings, especially when setting Vref.</li> <li>Install a bleed resistor ontransformer,the
big
capacitor,
and
do
not
touch
unless
fully
discharged.</li>
<li>Install
a
power
LED
(not
included)
on
the
5V
pad
of
your
board.</li>
<li>Use
consistent
motor
wire
coloring.</li>
<li>Do
not
plug/unplug
wires
until
the
system
has
been
powered
down
for
a
couple
of
minutes.</li>
<li>Take
the
time
to
build
a
case.
Good
airflow
for
cooling
is
critical.</li>
<li>The
included
power
switch
is
meant
for
much
smaller
wires.
Purchase
a
beefier
one
and
throw
the
stock
part
out</li>
</ol>
Revised 3 years ago
tba<p>Please
read
the
instructions
that
come
with
your
HobbyCNC
controller/motor
kit
very
carefully.
Here
are
a
couple
of
gotchas
that
we
found
through
trial
and
error:</p>
<ol>
<li>Watch
your
jumper
settings,
especially
when
setting
Vref.</li>
<li>Install
bleed
resistor
on
transformer,
and
do
not
touch
unless
fully
discharged.</li>
<li>Use
consistent
motor
wire
coloring.</li>
</ol>
Revised 3 years ago
tba
<p>Please read the instructions that come with your HobbyCNC controller/motor kit very carefully. Here are a couple of gotchas that we found through trial and error:</p> <ol> <li>Watch your jumper settings, especially when setting
Revised 3 years ago
<p>Please read the instructions that come with your HobbyCNC controller/motor kit very carefully. Here are a couple of gotchas that we found through trial and error:</p> <ol> <li>Watch your jumper settings, especially when setting Vref.</li> <li>Install a bleed resistor on
Revised 3 years ago
Revised 3 years ago
tba
