DIY Loadcell Handbrake: THE ADVANTAGES
EASY TO BUILD
The DIY Loadcell Handbrake building kit has been designed to be easy to build without expensive tools or advanced knowledge! A complete tutorial is provided, and you can ask free assistance in the “Help & Questions” section.
STRONG AND ADJUSTABLE
The DIY Loadcell Handbrake has a very strong structure, stable and smooth mechanism. It has been designed to allow a maximum of adjustments! You can adjust the angle, hardness and stop.
SAVE MONEY
This Loadcell Handbrake can be built with a small budget, depending on the parameters you have chosen (material, USB Card…) and the equipment you have (3D Printer, CNC…).
HOW TO MAKE YOUR DIY Loadcell HANDBRAKE?
The additional tutorial is available here.
DIY Loadcell HANDBRAKE: SHOPPING LIST
LOADCELL HANDBRAKE ELECTRONICS
- Arduino Pro Micro Board
- 20kg Loadcell[Option: 1pc 20kg sensor]
- HX711 Board (option: Standard Board)
- Micro USB Cable
SPRINGS
- Recommanded Spring [Option: Length: 65mm, Diameter: 20mm]
- Alternative Spring 1 [Option: length 65mm, Diameter 20mm]
- Alternative Spring 2 [Option: Color: yellow, Specification: 18x9x65]
- Bushing/Elastomers
ASSEMBLY
- 3 Hex Wrench Spanner [Quantity: 1] [Option: 3-4-5mm, 4-5-6mm]
- Allen Hex key [Quantity: 1] [Option: flat head]
- Alternative Allen Hex key
- Screw driver hand tool
- LED Flash light
SOLDERING
- Electric soldering iron
- Soldering station 1
- Soldering station 2
- Soldering wire
- Soldering dross
- Soldering tweezers
- Wire cable stripper
- Metal soldering holder
- Plastic soldering holder
ALIEXPRESS SCREWS
- Pandametal Screws Store: most of what you need is here
- M5x20 and M6x20 spacers
- M6x40 spacers
- M8 Female Rod end [Quantity: 1] [Option: PHS8 Right thread]
- M8x130 Semi-threated screws
- M8x130 Semi-threated screws (alternative link)
3D PRINTER
DIY Loadcell Handbrake Parts compatibility
You can use other parts to build this Sim Racing Handbrake (apart from those listed in the required parts section), but you will need to check that they are compatible.
LOADCELL
Weight: 20kg
Loadcell dimensions:
ELASTOMERS
- Ø Inside diameter: min. 8mm, max. 10mm
- Ø Outside diameter: not to exceed 20mm (except if you use M8 washers).
SPRINGS
- ØInside diameter: not below 8.5mm
- ØOutside diameter: not to exceed 20mm (except if you use M8 washers).
ALTERNATIVE HANDLE
- Alternative Handle #1
- Alternative Handle #2
- Alternative Handle #3
- Alternative Handle #4
- Alternative Handle #5
- Alternative Handle #6
Material of the loadcell Handbrake
LASER CUTTING
I recommend stainless steel.
3D PRINTING
I recommend PLA or ABS. You can apply 20% infill for all parts except for the part Spring Support – Quantity 1.stl, for this one I recommend 80% or 100%. Here are recommendations for printing 3D solid parts.
HAND CUTTING AND CNC MACHINING
I recommend aluminum because it is a soft metal that is easy to work with.
How to get the required materials
LASER CUTTING
I advise you to request a quote from laser cutting companies near your home. All parts are flat with 5mm thickness, there are none to bend. So you can compare prices and choose the most profitable. You can save money if you make a combined order.
For France and Europe, I recommend the company ALPM, and they provide a very good quality cut for a reasonable price.
3D PRINTING
You can buy a 3D printer, or find a 3D printing service like treatstock. The Sim Handbrake longest part that need to be printed is 210mm.
HAND CUTTING
You need only sheets of papers, printer and Aluminium plates!
CNC MACHINING
I recommend CNC Machining only if you own a CNC Rooter, otherwise it is not economically profitable enough compared to laser cutting.
SCREWS
Bolt depot, Motedis and FixnVis.
Tolerances
- Laser cutting DXF files and CNC Machining files: 0.2mm
- 3D Printing: 0.6mm
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