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Robotis DYNAMIXEL XL430-W250-T servo: case, horn bolt circle and frame mounting holes

What are the Robotis DYNAMIXEL XL430-W250-T case dimensions, horn bolt circle and frame mounting-hole positions? · Modern device · basis: Robotis official STEP model of the XL430 (robotis.com download 773) and the XL430-W250 drawings in the Robotis e-Manual.

Also called: XL430-W250-T, DYNAMIXEL XL430, Robotis XL430, XL430-W250, XL430 dimensions, XL430 horn bolt pattern, robotis dynamixel xl430-w250-t smart servo actuator concrete real hardware robot

Exact dimensions. Every file is drawn at true size with no tolerance added. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your process's clearance before making the part. Mating features

length
46.5 mm
width
28.5 mm
height
40.9 mm

Notes

  • Case 28.5 × 46.5 × 34.0 mm with R3.25 vertical corners. The output horn axis is parallel to the 34.0 height, centred across the 28.5 width, 12.0 mm from the case centre toward the horn end (11.25 mm from that end).
  • Output horn Ø20.5 stands 2.0 mm above the case top with a Ø8.0 hub boss to 3.9 mm; the rear idler Ø20.5 stands 2.0 mm below the case bottom with a Ø7.9 hub 1.0 mm further, giving 40.9 mm overall along the horn axis.
  • Horn and idler bolt circle: PCD 16 about the horn axis, 4 × Ø2.0 on the case axes and 4 × Ø1.7 on the diagonals, each 3.5 mm deep.
  • Frame holes are threaded in the servo and modelled at the Ø2.1 tap-drill size, 4.0 mm deep: 2 in the horn face, 4 on each long side, 4 in the rear end and 2 in the horn end (table: x across the width, y along the length from the case centre, z up from the case bottom).
  • Modelled: case, horn, idler, hubs and every mounting hole. Not modelled: case-corner assembly screws, the shallow recesses around horn and idler, the horn spline, edge chamfers and the two cable connectors with their openings.
  • Dimensions are exact nominal (true size), no tolerance added.

Robotis DYNAMIXEL XL430-W250-T servo: case, horn bolt circle and… size chart

faceholespositions (mm)Ø × depth (mm)
horn face (top)2x ±11.0, y +4.02.1 × 4.0
each long side (±x)4y −16.0 and +8.0; z 11.0 and 23.02.1 × 4.0
rear end (−y)4x ±8.0; z 11.0 and 23.02.1 × 4.0
horn end (+y)2x ±8.0; z 23.02.1 × 4.0
horn and rear idler4 + 4PCD 16 about the horn axis (x 0, y +12.0)2.0 / 1.7 × 3.5

Mating features

Drawn at the exact size. Open press, slide, run and socket features by your process's clearance (tolerances by process); leave designed gaps and clamp fits as drawn.

featureexactmates withfitfiles
horn bolt circle4 × Ø2.0 + 4 × Ø1.7 on PCD 16, 3.5 deephorn-mounted link, wheel or bracket screwsdesignedall
frame holesØ2.1 tap-drill size, 4.0 deep; side pairs 24.0 × 12.0 apartRobotis-pattern frames or a custom bracket, screws of the servo's threaddesignedall
case28.5 × 46.5 × 34.0, R3.25 cornerspocket or cradle in a printed or machined framesocketall

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

ROBOTISXL430-W250 e-Manual: specifications and drawingswebPublisher's page; dimensions are facts
ROBOTISDYNAMIXEL XL430-W250-T product pagewebPublisher's page; dimensions are facts

Free files

★ Free files 1 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

robotis-dynamixel-xl430-w250-tRobotis DYNAMIXEL XL430-W250-T servo: case, horn bolt circle and frame mounting holesSTEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=robotis-dynamixel-xl430-w250-t

Robotis DYNAMIXEL XL430-W250-T servo: case, horn bolt circle and frame mounting holes, isometric render of a generated part
Render of robotis-dynamixel-xl430-w250-t from the free STEP; not to scale.

Fits with

TowerPro MG996R servo, isometric render of a generated part
TowerPro MG996R servo40.7×19.7×42.9 mm★ 1 file
TowerPro SG90 micro servo, isometric render of a generated part
TowerPro SG90 micro servo23.1×12.2×29.0 mm★ 1 file
RC servo sizes: 9 g micro (SG90, MG90S), standard (Futaba S3003, Hitec HS-311), 1/4 scale (HS-805BB), isometric render of a generated part
RC servo sizes: 9 g micro (SG90, MG90S), standard (Futaba S3003, Hitec HS-311), 1/4 scale (HS-805BB)5 sizes★ 5 files
Metric machine screws M1.6–M10: pan head ISO 7045 (cross) / ISO 1580 (slotted), cheese head ISO 1207, countersunk ISO 7046-1 — head sizes, recess sizes + models, isometric render of a generated part
Metric machine screws M1.6–M10: pan head ISO 7045 (cross) / ISO 1580 (slotted), cheese head ISO 1207, countersunk ISO 7046-1 — head sizes, recess sizes + models37.5×20.0×37.5 mm★ 36 files
Socket head cap screws, M2–M8 (ISO 4762 / DIN 912), isometric render of a generated part
Socket head cap screws, M2–M8 (ISO 4762 / DIN 912)7 sizes★ 47 files

Questions

What is the horn bolt circle of the XL430-W250-T?

PCD 16 mm about the horn axis: four Ø2.0 holes on the case axes and four Ø1.7 on the diagonals, 3.5 mm deep. The rear idler carries the same pattern.

How big is the XL430 case?

28.5 × 46.5 × 34.0 mm with R3.25 corners; 40.9 mm overall along the horn axis including the horn, idler and hubs.

Where are the side mounting holes?

Four per long side, at 16.0 mm behind and 8.0 mm ahead of the case centre, 11.0 and 23.0 mm above the case bottom; Ø2.1 tap-drill size, 4.0 mm deep.