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THump DM4/5/C Board Instructions
Features
• The signature board of Baltimore Trauma’s Tyler Humphrey
• Fully functional in the Dye DM4, DM5, and DMC
• Based on the Musashi 7 software
• New model microcontroller runs at 8 Mhz, the fastest DM4/5/C aftermarket
solution available
• Enhanced power switching hardware for the solenoid is capable of pushing
10 amps, more than 3 times the capability of the stock board
• Includes twelve (12) fire modes: uncapped semi-auto, capped semi-auto, PSP
auto-response, PSP mild ramping, PSP max ramping, PSP z-burst, NXL fullautomatic, auto-response, mild ramping, max ramping, z-burst, and fullautomatic
• Asynchronously monitors the trigger switch using an interrupt based scan at
2 million times per second, faster than any other aftermarket board or chip
for the DM4/5/C
• Gangster setting allows 3 different options for every fire mode, giving 36
different “breakout” style modes
• Adjustable ABS programming prevents first shot drop-off
• AMB (anti-mechanical bounce) and CPF (cycle percentage filter) algorithms
help to eliminate mechanical bounce and switch bounce
• Power efficient software and hardware lengthens battery life
• Programming mode allows changes to debounce, dwell, loader delay, AMB,
ABS dwell, fire mode, fire mode max rate of fire, eye mode, CPF, ramp start,
gangster mode, and LED colors
• All settings are stored in non-volatile memory so they are not lost when
battery is disconnected
• One-touch startup enables the marker to fire instantly
• Automatic 15-minute idle power down saves batteries
• Three eye modes: delayed, forced with force shot, and test mode with rate of
fire indicator
• Fully adjustable color schemes
• Low battery indicator hardware and software shows battery level each time
the marker is turned on
• BMR (bad membrane recognition) allows the user to keep playing when the
eye button fails on the membrane pad
Installation
Removal and installation of the board on a DMC, DM5, or DM4 must be carefully done
to ensure the electronics are not damaged. Begin by removing the grips from the
marker. This will expose the entire circuit board. Remove the two mounting screws, eye
harness, power/trigger switch harness, membrane socket, and solenoid harness. Remove
the stock board. Place the THump DM4/5/C board in the grip frame and replace the two
mounting screws. Plug in all the connections. If the marker will not turn on, it may be
due to a low battery, broken membrane or broken battery harness.
LED Indicator
The multi-color LED that shines out the left side of the grip panels shows which mode
of operation the marker is currently in. The default color scheme is:
Rapid Blinking Red At startup this indicates an exhausted battery
Rapid Blinking Yellow At startup this indicates a low battery
Rapid Blinking Green At start this indicates a good battery
Solid Blue Ball in breech, ready to fire
Slow Blinking Blue No ball in breech
Slow Blinking Yellow Eye malfunction, max rate of fire reduced to 12.5 bps; clean
eyes or make sure the gun is fired with paint and air
Slow Blinking Red Eyes disabled, rate of fire limited to 20 balls per second in
mode 1; otherwise capped at fire mode max rate of fire for
fire modes 2 – 12
Pressing and releasing the power button turns the marker on. The battery indicator will
Power Operation
show the current power level of your battery with a flickering red, yellow, or green
LED. After, it will show a solid or blinking blue LED (unless changed from the
default). To turn off, press and hold the power button until the LED turns off, then
release. Every time the marker is turned on, the eyes are enabled. The marker can be
turned off regardless of the state of the eyes. See “Battery Indicator” section for
additional details.
Eye Operation and Logic
The eyes are enabled when the marker is first turned on. The eyes can be toggled by
using the eye button. Press and hold the eye button for 1 second and the LED will
change colors to indicate the mode change.
If used, the eye system cycles the marker as fast as possible. During each shot the eyes
watch for the bolt to return, ending the current firing cycle and starting another as
quickly as the pneumatics allow. If the eye system is continually blocked (e.g. putting
your finger in front of the eyes) and is unable to see the bolt return after every shot, the
max rate of fire will be reduced to about 12 balls per second to prevent further chopping,
and the LED will blink the eye malfunction color (yellow by default). The only way to
show the true speed of the THump board is to fire the marker with paint and air. When
the eyes are off, the rate of fire is limited to 20 balls per second unless in fire mode 2-12,
in which case the rate of fire is selected by the user.
To determine if the eyes are working correctly, insert an object into the breech. Check to
see if the LED changes from blinking blue to solid blue and then back to blinking blue
(if using default colors) once the object is removed.
Battery Indicator
Battery indicator software and hardware are standard on the THump DM4/5/C board.
When the marker is turned on, the LED will briefly flicker red, yellow, or green to
indicate the status of your battery. If it flickers red, the battery is exhausted and should
be changed as soon as possible. If it flickers yellow, the battery may last for another case
of paint, but it is close to failing.
Programming
The tournament lock must be disabled in order to change settings on the board. The push
button switch on the lower right side of the board toggles the tournament lock. While
the marker is turned off, push and hold the lock button. The LED will flash red or green
to indicate the status of the lock. Red means the lock is on, while green means the lock
is off. While the lock and the marker are off, pull and hold the trigger, then push the
power button. The marker will boot into programming mode, showing a rainbow
sequence before stopping at solid green.
Pulling and releasing the trigger quickly will toggle between the different programming
modes:
Green Debounce
Purple Dwell
Yellow Loader delay
Blue AMB (anti-mechanical bounce)
Red ABS dwell
White Fire mode
Teal Fire mode max rate of fire
Flickering Green Eye mode
Flickering Purple CPF (cycle percentage filter)
Flickering Yellow Ramp start
Flickering Blue Gangster mode
Flickering Red Eye enabled color
Flickering White Eye disabled color
Flickering Teal Eye malfunction color
When the LED is lit for the desired setting, press and hold the trigger until the LED goes
out. When you release the trigger, the LED will blink to show the current setting. For
example, if the current setting for debounce is 5, the LED will blink green 5 times. Once
the LED stops blinking, you have 2 seconds to begin entering the new setting. To enter
the new setting, pull the trigger the desired number of times. For example, to set the
debounce to 2, you must pull the trigger 2 times. Every time you pull the trigger the
LED will light. After all settings have been changed, turn the marker off, using the
power button.
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Programming Example
If you want to set the dwell to 20, you should:
1. Make sure the marker is powered off and the tournament lock is
disabled.
2. Pull the trigger and push the power button to turn on the marker.
3. The LED shows a rainbow sequence then stops on solid green. This is the
debounce mode.
4. Quickly pull and release the trigger 1 time to switch to the dwell mode.
The LED will show purple.
5. Pull and HOLD the trigger until the LED turns off.
6. Release the trigger. The LED will blink out the current setting.
7. When the LED stops blinking, enter the new setting by pulling the trigger
20 times.
8. Wait until the LED turns back on, indicating programming has been
completed.
9. Turn the marker off.
Program Reset
To reset all settings to factory defaults, hold down the eye button for 10 seconds while
in programming mode. The LED will rapidly cycle through every setting color to
indicate that the process has completed.
Settings
Debounce – The THump board features an interrupt based debounce algorithm that
effectively “scans” the trigger over 2 million times per second. It runs this completely
independent of code execution on the microcontroller so your trigger pulls are always
registered. The debounce setting is in increments of ½ milliseconds. Users should be
aware that low debounce settings may cause the marker to read switch bounce as
additional pulls, falsely generating shots or near full-automatic fire. The setting ranges
from 1 to 50 and is defaulted at 20 (10 ms).
Dwell – The amount of time the solenoid is energized each time the marker is fired. The
default is 18 ms. The range is 10 to 30 ms. Too low of a dwell may lead to inconsistency
or drop-off. Too high of a dwell can cause bad air efficiency.
Loader delay – Adds a slight delay after the eye has seen a ball and the bolt is cycled,
causing the gun to fire. If not using force fed loaders, it may be necessary to increase
this setting to prevent chopping. A setting of 1 means no loader delay, which is the
f
astest. The default is 2 and may be set from 1 to 25.
AMB (Anti-mechanical bounce) – Allows the user to adjust the anti-mechanical
bounce feature. Mechanical bounce occurs due to the kick generated during each shot
and can cause the marker to “run away” on the first few shots. AMB helps stop markers
from going full-auto when the trigger is pulled very slowly. The default is 2 and may be
set from 1 to 5 (1 being off). AMB is only used in fire modes 1 and 2 (semi-automatic
unlimited and adjustable).
ABS dwell – Amount of dwell time added for an ABS (anti-bolt stick) shot. The range
is from 1 to 15 additional milliseconds of dwell. The default is 5. ABS programming
helps to eliminate first shot drop-off. First shot drop-off occurs when the lube and orings settle or “stick” inside the marker after it has been sitting. The next shot fired will
be lower in velocity because the bolt has to break free. ABS will slightly increase the
dwell to compensate if the marker is left sitting for 15 seconds.
Fire mode – Included are twelve (12) different fire modes (default is 1):
1. Semi-automatic, unlimited rate of fire
2. Semi-automatic, adjustable rate of fire
3. PSP auto-response
4. PSP mild ramping, adjustable ramp start
5. PSP max ramping, adjustable ramp start
6. PSP Z-burst
7. NXL full-automatic
8. Auto-response
9. Mild ramping
10. Max ramping
11. Z-burst
12. Full-automatic
Setting 1 is normal semi-automatic with an unlimited rate of fire while the eyes are
enabled. When the eyes are turned off, the max rate of fire is set to 20 balls per second.
Setting 2 is semi-automatic with an adjustable rate of fire. It limits the maximum balls
per second that can be fired. The cap is set by the max rate of fire setting.
Setting 3 is the PSP auto-response fire mode that works as follows:
• The first 3 shots of a string are semi-automatic
• After the 4
th
shot the marker will fire on the pull and release in auto-response
mode
• If the user stops firing for more than 1 second, the 3-shot semi-automatic
count starts over
Setting 4 is the PSP mild ramping fire mode that works as follows:
• The first 3 shots of a string are semi-automatic
• After the 4
th
shot the marker will ramp based on the speed of the trigger pulls
as long as the user pulls the trigger faster than the ramp start setting.
• If the user stops firing for more than 1 second, the 3-shot semi-automatic
count starts over
Setting 5 is the PSP max ramping fire mode that works as follows:
• The first 3 shots of a string are semi-automatic
• After the 4
th
shot the marker will ramp up to the loader’s maximum speed or
the maximum rate of fire as long as the user pulls the trigger faster than the
ramp start setting.
• If the user stops firing for more than 1 second, the 3-shot semi-automatic
count starts over
Setting 6 is the PSP Z-burst fire mode that works as follows:
• The first 3 shots of a string are semi-automatic
• After the 4
th
shot the marker will burst fire from 2-3 shots per pull depending
on how quickly the trigger is pulled and released
• If the user stops firing for more than 1 second, the 3-shot semi-automatic
count starts over
Setting 7 is the NXL full-automatic fire mode. It functions similarly to the PSP fire
modes except, after the 3
rd
semi-automatic shot, the user may pull and hold the trigger
for the marker to fire in full-automatic.
Setting 8 is the normal auto-response fire mode. The marker will fire on each pull and
release of the trigger, generating two shots per full pull cycle.
Setting 9 is the normal mild ramping fire mode. The marker will fire in semi-automatic
unless the user pulls the trigger faster than the ramp start setting. Once the ramp start
setting has been achieved the marker will mildly ramp, generating additional shots
depending on how fast the user pulls the trigger.
Setting 10 is the normal max ramping fire mode. The marker will fire in semi-automatic
unless the user pulls the trigger faster than the ramp start setting. Once the ramp start
setting has been achieved the marker will ramp up to the maximum feed r ate of the
loader or the maximum rate of fire setting, whichever is lower.
Setting 11 is the normal Z-burst fire mode. The marker will burst fire 2 times or more
for every pull and release of the trigger, depending on how fast the user pulls the trigger.
Setting 12 is the normal full-automatic fire mode. As long as the trigger is depressed the
marker will fire in full-automatic.
Fire mode max rate of fire – The max rate of fire setting applies to the 2nd – 12th fire
modes. The max rate of fire is adjustable from 10 to 25 balls per second, and has an
unlimited setting for maxing out the loader system. The default is 7, which is roughly
13 balls per second. Oscillator inconsistencies from chip to chip make it impossible to
time perfectly, so the only true way to check rate of fire is to use a Pact Timer or
ballistic chronograph. The red radar chronographs commonly found at fields are NOT
reliable.
Setting BPS Setting BPS
1 10.0 12 15.5
2 10.5 13 16.0
3 11.0 14 17.0
4 11.5 15 18.0
5 12.0 16 19.0
6 12.5 17 20.0
7 (default) 13.0 18 21.0
8 13.5 19 22.0
9 14.0 20 23.0
10 14.5 21 24.0
11 15.0 22 Unlimited eyes on, 25.0 bps eyes off
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Eye Mode – Three eye modes are available:
1. Delayed – If the eye system does not detect a ball in the breech for ½ second, the
marker automatically fires. This is useful for sound activated loaders because it
ensures that a shot is fired, even without paint, so the loader will continue to feed.
2. Forced with force shot – The marker only fires if paint is seen in the breech or the
user pulls and holds the trigger for ½ second, thereby initiating a force shot. This
is the default and the same as the stock DM4, DM5, or DMC software’s eye mode.
3. Test – This mode is specifically for seeing how fast the user can fire the marker, or
how fast the pneumatics can actually cycle. The eyes work to prevent firing if
they are blocked. This mode is only for dry firing. The LED is used to show the
fastest achieved rate of fire:
Red less than 10 bps
Yellow between 10 and 15 bps
Green between 15 and 20 bps
Blue between 20 and 25 bps
White 25 bps or greater
As long as the user continues to fire, the fastest achieved rate of fire will continue
to be displayed on the LED. If the user stops firing for 1 second, the LED will
cycle back through the rate of fire colors.
Note: The test eye mode works with any fire mode selected. The fire mode max rate of
fire is set to unlimited while in test eye mode.
CPF (Cycle percentage filter) – The cycle percentage filter allows adjustment of the
point within the current firing cycle that a new buffered shot is allowed. Almost all
electronic paintball markers allow a single shot to be buffered in the event the user is
fast enough to release the trigger and pull again during the current firing cycle. The
CPF setting is adjustable from 1 to 10. Setting 1 turns the CPF off, allowing buffered
shots at any point in the firing cycle. Setting 2 through 10 sets the percentage of the
firing cycle that must pass before shots may be buffered:
1. CPF turned off
2. 10% of the firing cycle must pass before a buffered shot is allowed
3. 20%
4. 30%
5. 40%
6. 50%
7. 60%
8. 70%
9. 80%
10. 90%
A higher CPF setting results in less unintentional bounce. For instance, it is possible
that if your debounce setting is border line, you can fire the marker a few times, then
hold it loosely and allow it to brush against your finger, going full-automatic. Since
most switch bounce from either a low debounce setting or mechanical bounce occurs
almost immediately after the trigger is released, CPF can be very effective in eliminating
falsely generated trigger activity.
Ramp start – This setting is only used for the four ramping fire modes (PSP mild and
max ramping, and normal mild and max ramping). It sets the minimum pulls per second
that must be maintained for the software to add shots or ramp up to the maximum rate of
fire setting. The default is 5 and is adjustable from 4 to 14 pulls per second.
Gangster mode – The THump board includes a special mode that can be applied three
different ways to each of the 12 fire modes, giving 36 “breakout” style combinations.
Gangster mode gives the user full-automatic with an unlimited rate of fire for a single
pull, for use at the start of the game. The setting is defaulted at 4, which turns gangster
mode off. A setting of 1-3 dictates at which pull that gangster mode will become active.
If set to 1, the first shot after you turn on the marker will be full-automatic with an
unlimited rate of fire for as long as you hold down the trigger. As soon as you release
the trigger, the marker will stop shooting and default back to your selected fire mode. If
set to 3, the gangster mode will be active on the third shot after the marker is turned on.
Regardless of the fire mode selected, the shots before the gangster mode will be semiautomatic. Gangster mode can only be used once for each time the marker is turned on.
Note: The gangster mode is illegal for use in all tournament series. Tadao Technologies
LLC takes no responsibility for the user’s choice in using the gangster mode.
Color scheme settings – The LED color scheme is fully adjustable with the THump
DM4/5/C board. The following three settings are adjustable from 1 to 7 for these colors:
1 Green
2 Purple
3 Yellow
4 Blue
5 Red
6 White
7 Teal
Eyes enabled color – This setting allows the user to change the color of the LED while
the eye system is enabled. The default is blue (4).
Eyes disabled color – This setting allows the user to change the color of the LED while
the eye system is disabled. The default is red (5).
Eye malfunction color – This setting allows the user to change the color of the LED
when the eye system detects a malfunction. The default is yellow (3).
Additional Features
BMR (Bad membrane recognition) – If the eye button on the membrane pad fails, the
software recognizes it at boot-up and disables it completely. This allows the user to
continue playing with the eye system enabled. It is not necessary to check the power
button on the membrane pad. If it goes bad, the marker cannot be turned on.
Force Shot – In the event the eyes are enabled, the breech is empty, and the user wants
to fire a clearing shot, a force shot can be initiated by pulling and holding the trigger for
½ second. This is useful with force fed loaders that sometimes push a ball slightly into
the detents where the eyes are unable to see it. After force firing, the next ball will load,
and operation will continue as normal.
A tip for setting the debounce, AMB, and CPF – This only applies to semi-automatic
fire modes (modes 1 and 2) since AMB is disabled in the PSP fire modes or NXL mode.
Debounce, AMB, CPF setup steps, while using paint and air:
1. Turn AMB and CPF off (set both to 1).
2. Starting at debounce 1-3, raise the debounce setting a notch at a time until
excessive trigger bounce goes away. The goal is to have one pull, one shot,
regardless of rate of fire. Do NOT slow pull test for bounce during this phase.
Instead, pull the trigger rapidly or walk it, listening for double or triple fires.
3. When it appears that it is only one shot, one pull for solid trigger pulls, try the
slow pull test. Holding the marker steady, slowly pull the trigger and see if
multiple shots can be generated from the single pull.
4. Increase the CPF setting a notch at a time until the slow pull bounce starts to
disappear. An additional test is to fire a few rounds quickly, then hold the trigger
right on the activation point to see if the marker will run away.
5. If you reach setting 10 with CPF and the marker can still be slow pulled to fire
full-automatic, your debounce setting is probably too low. Go back to step 2.
6. AMB should not be set above 3, if possible, since it is not as transparent to the
user as CPF. Even a CPF setting of 10 will not be noticed by the user.
Example Setting Profiles:
1. Tournament legal semi-automatic (NPPL)
a. Fire mode 1 or 2 (semi-auto unlimited or capped)
b. Debounce 5-20
c. AMB 2
d. CPF 2-5
e. Loader delay set to match your loader (1-4 for Halo, 4-10 for gravity feed)
2. PSP X-Ball, CFOA
a. Fire mode 3, 4, 5, or 6
b. Max rate of fire set to 3-5, depending on Pact Timer readings. To be safe
use setting 3 (14.5 balls per second).
c. Debounce 5-20
d. Ramp start 5 or higher if using PSP mild/max ramping
e. Loader delay set to match your loader (1-4 for Halo, 4-10 for gravity feed)
3. Millennium
a. Fire mode 4 or 5 (PSP mild or max ramping)
b. Max rate of fire set to 3-5, depending on Pact Timer readings. To be safe
use setting 3 (14.5 balls per second).
c. Debounce 5-20
d. Ramp start 8 or higher
e. Loader delay set to match your loader (1-4 for Halo, 4-10 for gravity feed)
4. NXL
a. Fire mode 7 (NXL full-automatic).
b. Max rate of fire set to 3-5, depending on Pact Timer readings. To be safe
use setting 3 (14.5 balls per second).
c. Debounce 5-20
d. Loader delay set to match your loader (1-4 for Halo, 4-10 for gravity feed)
5. Ludicrous Speed (absolute fastest/bounciest)
a. Any fire mode
b. Max rate of fire set to 26 (unlimited)
c. Debounce 1
d. AMB 1 if using semi-automatic
e. CPF 1
f. Ramp start 4 if using any ramping modes
g. Loader delay
Additional Information
www.tadaotechnologies.com
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