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1 of 7Tactile sensing / Mechanical design

SoleSense

Engraved line drawing of SoleSense R07 (full CAD assembly). Moving the pointer over the drawing, or the Show in colour button, reveals the true-colour model.

Demo · Press the head and watch the magnet slide past the sensor.

Interactive demo of the R07 design: while held, the carriage, magnet and filament cartridge slide toward the handle, past the fixed Hall sensor. Hold the button, or hold Space or Enter while it has focus.

Stage 2 of 4: Design — R07 · Full CAD assembly
Inspect the parts

The idea & the why

A handheld instrument for exploring pressure and vibration testing: interchangeable heads, a replaceable filament cartridge, and a magnet that moves with the carriage past a fixed Hall sensor.

The problem

Studying touch means controlling exactly how a surface is pressed or vibrated. Researchers need an instrument whose contact head, travel and sensing they can understand and change.

Who it’s for

Researchers and product teams exploring tactile sensing and how people respond to touch.

The thinking behind it

SoleSense puts interchangeable contact heads and a replaceable filament cartridge into one handheld assembly. A magnet travels with the carriage past a fixed Hall sensor, turning movement into an electrical reading.

The result

A repeatable, adaptable instrument for tactile testing. R07 brings the whole design together in one assembly, ready to print and fit.

Disciplines

  • Tactile sensing
  • Mechanical design
  • Interchangeable heads
  • Hall-effect sensing

How it’s built

Every part below is read from the model file. Pick a group to pull its parts out of the assembly.

Engraved line drawing of SoleSense R07, its parts grouped for inspection. Moving the pointer over the drawing, or the Show in colour button, reveals the true-colour model.

83 parts in the model

21 parts in Handle

  • 01Handle lower
  • 02Handle upper
  • 03Controller tray
  • 04Charger tray
  • 05SD tray
  • 12Button cap
  • 14Handle wire clamp
  • 20Boost shelf
  • 29Button platform
  • 30OLED 13in retainer
  • 31Battery protection tray
  • 32Collar safety slider
  • REF18650 67×18.6
  • REF1S protection 16×12×5
  • REFButton 6×6×5
  • REFController 52×28×12
  • REFMicroSD 24×25×5
  • REFOLED Adafruit938 35.6×33×6.2
  • REFPololu U3V40F5
  • REFPower slide switch
  • REFTP4056 28×17×5

2 parts in Interface

  • 33Captive collar right
  • 40Captive collar left

13 parts in Magnetic head

  • 41R04 joint adaptor
  • 42Magnetic chassis
  • 43Removable lid
  • 44Moving carriage
  • 45Leaf clamp times 4
  • 46Magnet retainer
  • 47Adjustable Hall mount
  • 48Locking filament cartridge
  • 51Cartridge lock knob
  • 56Teal spine inlay

2 parts in Springs

  • REFPhosphor bronze leaf times 2

6 parts in Hardware

  • REFDRV5055A3QLPG envelope
  • REFHall lead times 3
  • REFMagnet 6×3 axial
  • REFNylon unrated

39 parts in Fasteners

  • REFAdaptor nut times 4
  • REFAdaptor screw times 4
  • REFCartridge lock M2×12
  • REFLeaf nut times 8
  • REFLeaf screw times 8
  • REFLid nut times 4
  • REFLid screw times 4
  • REFMagnet nut times 2
  • REFMagnet screw times 2
  • REFSensor adjust screw times 2

Gallery

CAD render of the SoleSense R07: a handheld instrument with a small display, a teal collar and the magnetic pressure head.
The R07 design, rendered from CAD.
Annotated CAD cutaway of the SoleSense R07 magnetic head: leaf springs, the moving carriage with its magnet, and the Hall sensor fixed to the housing.
Cutaway of the magnetic head: leaf springs, the moving carriage and its magnet, and the Hall sensor.
A narrated walkthrough of the R07 assembly.

What we built

  1. 1. CONCEPTThe idea, modelled in 3D and ready to develop.
  2. 2. DESIGN — This projectEngineered in CAD, part by part, ready to make.
  3. 3. HARDWAREParts made and assembled into a physical build.
  4. 4. PROTOTYPEBuilt, wired and running on the bench.
Stage 2 of 4: Design — R07 · Full CAD assembly
What we built
The complete R07 assembly in 83 parts, from the interchangeable heads to the Hall-effect sensing, with a narrated walkthrough.

Next project2 of 7

Ambient Comfort

Wearable sensing / Human-centred designStage 1 of 4: Concept — Wearable concept
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