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CRAZYDONGPAL × SAMDUCKSA
QUADRUPLEEDGEPRO
CrazyDongpal Pro Quadruple Edge Lever
Free-flowing movement.
Clearly defined diagonals.
Four reference points for familiar rolling movements.
A new feel in a low-profile gold body.
LOW PROFILE · DIAGONAL DETENTS · OMRONSCROLL TO FEEL THE EDGE ↓
04Four diagonal
physical reference points
physical reference points
LOWDesigned to fit
Low-profile body
Low-profile body
OMRONChosen for gate feel
Switch selection
Switch selection
01 / THE FOUR EDGES↖ ↗ ↙ ↘
FREE FLOW. CLEAR REFERENCE.
A circular-gate flow,
with diagonal reference points.
The familiar feel of rolling, rotating, and changing direction.
We added four diagonal detents to that familiar flow.
Physical stops at the diagonals provide tactile reference points, bringing the clearly defined directional control of a square gate to your fingertips.
Select an arrow to explore the four diagonal reference points.
Movement that flows freely.
Four reference points you can feel.
INSIDE THE EDGE.BODY / GUIDE / SWITCH
01 / GOLD BODY
Designed low,
finished in gold.
The low-profile body is a defining feature of the CrazyDongpal Pro.
The Edge Pro adds a new presence through the contrast of a gold-plated body and a black mounting bracket.
02 / DIAGONAL DETENTS
Through every rotation,
corners you can feel.
Physical stops are provided at all four diagonal directions.
The detent depth and shape were balanced to feel natural to players accustomed to circular-gate operation.
03 / OMRON SWITCH
Let the corners
come through naturally.
From the previous Gersung switches to OMRON.
The switch action was made smoother so that the gate corners and diagonal detents can be felt more naturally.
02 / LOW PROFILEMORE ROOM TO FIT.
A lower body,
more room to fit.
A low-profile body designed with case clearance in mind is an important feature of the CrazyDongpal Pro. The Edge Pro continues that design approach.
Fit depends on internal case height, mounting-bracket position, and space for wiring.
LOW PROFILE.
HIGH PRESENCE.A low profile and a gold body.
Designed to fit. Styled for the Edge.
HIGH PRESENCE.A low profile and a gold body.
Designed to fit. Styled for the Edge.
03 / THE SWITCHOMRON V-152-1C25
A DIFFERENT FEEL, FROM THE INSIDE.
For a clearer reference,
start with the switches.
OMRON× 4 SWITCHES
Gate and switches, working together.
The lever was tuned around the operating characteristics of OMRON switches so that switch resistance does not dominate the feel, allowing the gate corners and detents to come through naturally.
View the switch model marking up close ＋
04 / SHORT GRIPGREEN / GOLD / BLACK
CLOSER TO YOUR FINGERTIPS.
A little shorter.
Closer to the feel of direction.
From 51mm on the original CrazyDongpal Pro to 43mm on the Quadruple Edge.
The grip is 8mm shorter.
The grip shape and length were developed with both square-gate feel and familiar Korean-lever grip techniques in mind.
The clear green grip and matching dust cover create a coordinated look above the gold body.
THREE GRIPS. A CLEAR DIFFERENCE.
On the same baseline,
different grip lengths.
8mm
Shorter grip
Bat-style grip
51.5mm
Quadruple Edge
43mm
CrazyDongpal Pro
51mm
CrazyDongpal Pro
51mm
Quadruple Edge
43mm
The displayed lengths of 51mm for the CrazyDongpal Pro and 43mm for the Quadruple Edge omit decimal places. The 8mm difference is based on these two displayed values and does not refer to overall lever height or shaft length.
05 / THE WHOLE BALANCETUNED AS ONE.
RETURN. TRAVEL. WEIGHT.
Changes to each part,
one balanced feel.
From a lightweight acetal actuator to a steel actuator.
The change in switches was considered together with return-to-neutral characteristics and the overall balance of the lever feel.
Shaft length and weight, actuator mass, and switch operating force were adjusted together. The design prioritizes how the parts feel together over individual components.
01
Shaft length and weight
How movement is transmitted from your hand.
02
Steel actuator mass
Selected with both switch action and neutral return in mind.
03
Switch operating characteristics
An operating feel that works with the gate reference points.
ACTUATOR / TWO VIEWS
The actuator shape,
from different angles.
The actuator is the internal part that operates the switches. Neutral return and lever feel also vary with the tension rubber, grip, and installation.
06 / PRO → EDGE PROA NEW CHARACTER.
A familiar name,
a new operating character.
More than a simple upgrade to the original Pro,
this is a new option designed to combine the strengths of circular and square gates.
| Comparison | CrazyDongpal Pro | QUADRUPLE EDGE PRO |
|---|---|---|
| Body | Low-profile clear body | Low-profile gold-plated body |
| Gate | Circular gate | Four diagonal detents |
| Switches | Gersung | OMRON |
| Internal actuator | Lightweight acetal | Steel |
| Grip | Capsule grip · 51mm | 43mm · 8mm shorter than the original Pro |
| Operating feel | Free-flowing circular-gate operation | Rolling movements with diagonal reference points |
Original Pro information is based on the IST MALL product page. Quadruple Edge details are based on manufacturer-provided materials and the introduction video.
FOR YOUR PLAY.
For hands used to a circular gate.
For play that calls for diagonal reference points.
For precise control with your fingers and wrist.
Developed with Virtua Fighter and 2D fighting games in mind.
07 / FROM THE CREATORWATCH THE DEVELOPMENT STORY.
Hear from the creator:
the thinking behind the Edge.
From the exterior and internal parts to in-game operation.
Explore the character of the lever in this introduction by its developer.
CRAZYDONGPAL
QUADRUPLE EDGE
The story of the Edge, from its developer.
10:07Gold body and exterior↗11:18Choosing OMRON switches↗14:39Steel actuator and operating balance↗17:04Why the grip is shorter↗
The video contains explanations and demonstrations by the developer. Individual impressions and demonstrations of specific techniques do not guarantee identical input results.
08 / BEFORE YOU INSTALLFIT. CONNECT. TEST.
LOW PROFILE / 5-PIN INTERFACE
From mounting clearance
to connector orientation.
A low-profile body with a 5-pin connection.
Check your arcade stick clearance and wiring so you can focus on the feel of the lever.
-
01 / Check clearance
Check the internal case height and bracket mounting positions. Allow extra clearance so the terminals and cables do not contact the bottom panel.
Lever body drawing · Enlarge drawing ↗ -
02 / Check connections
Disconnect power before checking the orientation of the PCB and cable connection. If replacing a lever that uses 8-pin wiring, install the 5-pin lever cable supplied with the Quadruple Edge Lever.
-
03 / Test inputs
After assembly, use the game input display to check up, down, left, right, diagonals, and return to neutral. If only the up direction registers and the other directions do not respond, flip the 5-pin cable connector at the lever over by 180 degrees and reconnect it.
Mounting requirements and compatibility may vary with the internal construction of your arcade stick.
09 / IN THE BOXTHE DETAILS THAT COMPLETE IT.
READY FOR YOUR SETUP.
The small details
that complete the Edge.
Explore the cable, dust cover, fasteners, and wrench supplied with the product. Read the included manual before assembly.
Fasteners and assembly parts
LOCKED OR FREE.
Shaft rotation:
choose your assembly order.
The positions of the washer and spring washer determine whether the shaft is locked against rotation or allowed to rotate freely.
A / Rotation locked
Keep the shaft from rotating.
Screw → Spring washer → Washer → Shaft
B / Free rotation
Allow the shaft to rotate freely.
Screw → Washer → Spring washer → Shaft
Read both sequences from the screw head toward the shaft. Disconnect power before assembly and refer to the diagrams in the manual below.
View the manual images 3 PAGES ＋
10 / PRODUCT OVERVIEWQUADRUPLE EDGE PRO
At a glance: EDGE PRO.
| Product name | CrazyDongpal Pro Quadruple Edge Lever |
|---|---|
| English name | QUADRUPLE EDGE PRO / CDP Quadruple Edge Lever |
| Manufacturer | Samducksa (SAMDUCKSA) |
| Body | Low-profile gold-plated body |
| Gate characteristics | Detents at all four diagonal directions |
| Switches | OMRON V-152-1C25 × 4 |
| Installed actuator | Steel · Designed to balance switch action and return characteristics |
| Grip | 43mm · 8mm shorter than the 51mm original CrazyDongpal Pro grip · Clear green only |
| Connection | 5-pin interface PCB |
| Design approach | Combines circular-gate flow with square-gate directional reference points |
Appearance and manufacturing notes
The gold-colored body may have uneven contours or ripples commonly caused by the molding process. These are not product defects. The glossy gold-colored finish can make these areas more noticeable.
The paint finish on the steel mounting bracket may be uneven in color. Friction during assembly can also rub off the paint.
Minor scratches or dents may also occur during manufacturing. The manufacturer does not classify these as defects when they do not affect functionality. (Exceptions apply when there is a serious appearance flaw beyond what is normally found on this product.)
Product information and video sources
New product features and changes from the original Pro: Samducksa product introduction materials. Low-profile body and gold plating: information supplied by IST MALL. Grip lengths with decimal places omitted: CrazyDongpal Pro 51mm and Quadruple Edge 43mm, as supplied by IST MALL. Shaft assembly instructions: the newly supplied product manual. Switch model and appearance: supplied product photographs.
CrazyDongpal Quadruple Edge introduction video ↗
Original CrazyDongpal Pro product page ↗
