01
Leg joints go slack after a few hundred steps
A plastic-on-plastic pivot wears, the walking gait drifts and the dog starts to limp. Metal inserts and machined pivot brackets hold the bore size that keeps the linkage timed.
RC Robot Toy Components
CNC Machining RC Walking Dog Toy Hardware
We machine the body shells, chassis brackets, wheel housings and gearbox plates that keep a walking robot toy in alignment after thousands of steps. Tolerances to ±0.005 mm, from one prototype to 10,000 parts.
±0.005 mmNo MOQ3–5 day shipping12-hour quote + DFMISO 9001 / IATF 16949Dongguan + Singapore
127High-precision CNC machines
16Simultaneous 5-axis centers
±0.005 mmAchievable tolerance
99.99%Qualification rate
Where toy hardware fails
Four problems engineers bring to us
Most of these show up after the prototype looks fine and the first 200 units ship.
02
Gearbox plate flexes under servo torque
A stamped or printed plate bends under load, gear mesh opens up and you get noise, heat and stripped teeth. Rigid machined plates keep center distances where the design put them.
03
Body shells do not close cleanly
Two halves that are not matched leave a visible seam and pinch the wire harness. Machined mating faces and dowel pin holes bring the seam gap down to a consistent line.
04
Wheel housings wobble on the axle
Oversized bores let the wheel rock, the toy tracks sideways instead of walking straight. Bored and reamed housings hold the axle fit without shims.
How we build the hardware
Metal parts that keep the gait repeatable
Three things decide whether an RC walking dog lasts past the first month.
Joint alignment
Bores and pivot holes held to size
Every leg pivot on a walking toy is a stack of tolerances. If the bore runs 0.05 mm over, the linkage develops backlash that no firmware can compensate for. We bore and ream pivot holes on 4-axis mills so the fit stays repeatable across the run.
For parts that carry both a bore and a mounting face, we cut them in one setup on a 5-axis center. That removes the repositioning error that shows up when a bracket is flipped between operations.
- 1Pivot boresBored and reamed for a repeatable press or slip fit
- 2Single-setup facesBore and mounting face cut without re-chucking
- 3Hardware threadsM2 to M6 tapped holes machined, not formed
- 4Material6061-T6, 7075, 304 stainless, POM, PA
Rigidity and weight
Plates thin enough to fit, stiff enough to hold gear mesh
A gearbox plate on a small walking toy is often 2 to 3 mm thick. Below that, servo torque bows the plate and the gear center distance opens up. We pocket the plate instead of thinning the whole face, so stiffness stays where the load path runs.
Wall sections down to 0.5 mm are practical on aluminum and engineering plastics. Tell us the servo torque and the gear module and we will flag any plate that looks too flexible before cutting metal.
- 1Pocketed platesMaterial removed where it carries no load
- 2Thin wallsDown to 0.5 mm on aluminum and plastics
- 3Gear center distanceHeld to drawing so mesh stays correct
- 4FinishingAnodizing, bead blasting, laser marking
Process choice
Printed prototype vs. CNC machined part
Use the printed part to prove the fit. Move to metal where load and wear live.
| Item | 3D printed prototype | CNC machined part |
|---|---|---|
| Tolerance | ±0.2 mm typical | ±0.005 mm achievable |
| Surface finish | Layer lines, Ra 6–12 μm | Ra 0.8–1.6 μm |
| Pivot bore wear | Loose within weeks | Holds fit over the product life |
| Gearbox plate stiffness | Flexes under servo load | Rigid, mesh stays set |
| Best use | Form and fit checks | Load-bearing, moving hardware |
What we run
Services for RC toy hardware
One shop for the metal parts, the housing and the finishing.
5-axis
5 Axis CNC Machining
Complex body shells and brackets cut in one setup, so bores and faces stay aligned.
4-axis
4 Axis CNC Machining
Rotary work for cylindrical pivots, wheel hubs and parts with features on several faces.
3-axis
3 Axis CNC Machining
Flat plates, chassis frames and covers. The cost-effective route for simple geometry.
Milling
CNC Milling & Turning
Shafts, axles and turned inserts combined with milled features in one part.
Prototype
Rapid Prototyping
First articles for fit checks before you commit to a production run.
Finishing
Part Surface Finishing
Anodizing, plating, powder coating, bead blasting and laser marking.
Scope and limits
Capability range
If your part falls outside these numbers, ask before assuming we cannot cut it.
| Parameter | Range |
|---|---|
| Maximum part size | 4,000 mm |
| Large travel | 4,000 × 400 × 150 mm |
| Medium travel | 750 × 1,150 × 550 mm |
| Compact travel | 500 × 500 × 450 mm |
| Rotary table | Ø400 mm |
| Tolerance | ±0.005 mm |
| Fine finish | Ra 0.2–0.8 μm |
| Order size | 1 part to 10,000+ parts |
Why GreatLight
Numbers behind the parts
Founded in 2011. Three wholly-owned plants, 7,600 m², 150 technicians.
16
Simultaneous 5-axis centers
Complex geometry cut in one setup, which keeps bores and mounting faces on the same datum.
±0.005
Achievable tolerance
Held on production parts, not just on a polished sample. Reported in the inspection file.
12 h
Quote and free DFM
Send a STEP file and we return pricing plus manufacturability notes within 12 hours.
24 h
Production start
Once the drawing is frozen, cutting can begin the next working day.
99.99%
Qualification rate
Measured across shipped lots. Every part is inspected before it leaves the floor.
ISO
Four certified systems
ISO 9001, IATF 16949, ISO 13485 and ISO 27001 cover quality and data handling.
15 yearsManufacturing experience
7,600 m²Manufacturing space
150Technicians on staff
<2%Historical late-delivery rate
Industry requirements
What different buyers ask us to hold
Consumer robotics
Body shells and leg brackets that stay aligned through a full durability cycle.
- ±0.005 mm
- Ra 0.8–1.6 μm
- Anodized finish
Electronics enclosures
Housings with connector cutouts and mounting bosses cut to the PCB drawing.
- Single-setup 5-axis
- M2–M6 threads
- Laser marking
Robotics & automation
Gearbox plates and pivot blocks that hold center distance under servo torque.
- Pocketed plates
- 0.5 mm walls
- 100% inspection
FAQs
Questions we get before the first cut
Which parts of an RC walking dog should be metal instead of plastic?
Anything that carries load or wears against another surface. Pivot bores, gearbox plates, wheel housings and motor mounts are the usual four.
Decorative shells and low-stress covers can stay in plastic. If a part only holds a shape, machining it in aluminum adds cost without adding life.
How tight does the pivot bore need to be?
It depends on the bearing or bushing you press in. A typical press fit runs 0.01 to 0.03 mm interference on a 4 mm bore.
Send the mating part drawing and we will hold the bore to match it rather than guessing from the nominal size.
Can you machine a body shell that was designed for injection molding?
Usually yes, with edits. Molded shells often have uniform wall thickness and draft that a cutter cannot reach.
Our DFM pass flags undercuts and deep ribs, and we suggest where to add a split line or a machined insert instead.
What material works best for a walking toy chassis?
6061-T6 covers most chassis brackets. It machines cleanly, anodizes well and costs less than 7075.
Use 7075 where you need higher strength at the same section, and 304 stainless for axles and wear surfaces that see constant sliding.
Do you have a minimum order quantity?
No. We run from a single prototype to 10,000+ part runs on the same equipment.
Setup cost is spread over the order, so unit price drops as quantity rises, but there is no threshold you have to cross to place an order.
How fast can I get parts for a design review?
Quotation and free DFM analysis come back within 12 hours. Production can begin within 24 hours of drawing approval, and parts ship in 3–5 days.
If you are still comparing concepts, ask about the sample center before committing to a full run.
Will you sign an NDA before I share CAD files?
Yes. Uploads are handled as confidential and we sign an NDA on request.
ISO 27001:2022 covers how we store and control your files internally.
What do I get with the shipment?
Parts are 100% inspected before shipment. Raw material checks, in-process monitoring and final inspection records are available on request.
Ask for the inspection report on the quote so it is included from the first article.
Send a STEP file, get a quote in 12 hours
Tell us the material, the tolerance band and the quantity. We reply with pricing and DFM notes, no minimum order.
12-hour quote100% inspectionNo MOQNDA on request
