Chameleon MOC Build Guide: Working Tongue and Scale Colors
The short version: this chameleon MOC uses about 950 pieces, measures roughly 22 cm long, takes about 4 hours to build at 1-2 hours a day, and costs around 240 yuan in parts. What sets it apart is the tongue — press the mechanism at the tail and it shoots out about 6 cm, just like the real animal. The curled tail, the big eyes and the graduated green scale pattern all read clearly on the finished model. The instructions come from the brickplan platform, and the parts list is split into three groups — head, torso and limbs — so you can pull bags in build order. Four hours gets you a chameleon, which makes it a good parent-and-child project.
Step 1: Head and the Big Eyes
Start the head with green curved slope pieces to shape the outline. The two eyes are built as full spheres: a transparent dome piece forms the eyeball, with a small dark round plate inside as the pupil, and each eye can swivel left and right. Leave a slit for the mouth and, behind it, a channel for the tongue to slide through. A hinge piece joins the head to the neck so the head can tilt up slightly. This step uses about 200 pieces. The eyes are the soul of a chameleon build, so get the pupil sitting straight and centered.
Step 2: Torso and the Scale Color Gradient
Build the torso from three greens — light green, grass green and dark green — interleaved to create a scale gradient, going from light on the back to dark further down to mimic how a real chameleon shifts its body color. Give the torso a slight arch and stack curved bricks to raise the spine ridge. Small tiles along the sides suggest scale texture, and the belly uses light yellow-green pieces. This step uses about 350 pieces and is the most parts-dense section of the whole model; just follow the numbered order in the brickplan instructions and the color pattern falls into place.
Step 3: Legs and the Curled Tail
Attach the four legs to the torso with ball joint pieces. Each leg is built in three segments — thigh, shin and claw — and each claw uses three small pointed pieces side by side to create a gripping look, so the model holds onto a branch securely. The tail is a spiral curl: small pieces are twisted segment by segment, then capped with a round plate to finish the tip. That curl is the chameleon's most recognizable pose. This step uses about 250 pieces. Press the joints in firmly — the tail can be rotated many turns without working loose.
Step 4: Finishing the Tongue Mechanism
The tongue is the core of the build. Fit a spring-loaded axle inside the torso, thread red thin plates onto the axle as the tongue, and build a press trigger at the rear. Press it and the tongue fires out about 6 cm; release and the spring pulls it back into the mouth. Finally join the head, torso, limbs and tail, and pose the model on a brick-built branch. Run through the parts list on the brickplan instructions page once more and your chameleon is ready to perform its hunting routine whenever you like.
FAQ
Q: Does the tongue actually move?
A: Yes. Press the trigger at the tail and the tongue shoots out about 6 cm and retracts on its own, using a spring and a sliding rail — no motor needed. This mechanism is the highlight of the whole MOC, and kids will press it over and over.
Q: What age is this suitable for?
A: It works as a parent-and-child build from age 6 up. An adult handles the frame and the tongue mechanism while the child helps with the scales and the tail, finishing in about 4 hours. 950 pieces isn't a lot, so a child can also build it alone, though an adult should help with the spring in the tongue.
Q: Where do I buy the parts?
A: The brickplan instructions page has the complete parts list with part numbers, which you can export to a Chinese parts marketplace or to Gobricks. The whole thing comes to about 240 yuan. All the greens are common colors, so you almost never hit a shortage — and if one is missing, a close shade works fine as a substitute.
Q: How does the finished model compare in scale to a real chameleon?
A: The model is about 22 cm long, while a common real chameleon is roughly 25-30 cm long, so it is close to 1:1 life size. It has real presence on a desk or bookshelf, and the effect is very lifelike.
Q: Will the tongue wear out from constant play?
A: Normal play won't break it — the spring and axle are standard parts. If the tongue starts firing sluggishly, stretch the spring slightly or swap in another of the same spec. The parts are standard, and if anything does break you can order a replacement by part number from brickplan.