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Replimat (also known as RepRap Building System) is an open source modular construction system anyone can make for themselves at home.

Replimat parts are infinitely reusable, require only a few tools, are flexible enough to build most things, and are compatible with other building systems. Machines made from Replimat can reproduce many of their own parts.

Parts are designed for disassembly, cradle-to-cradle reusability, and constructed from waste or other durable, reusable, renewable, recycled and recyclable materials. Each part forms a long lasting, multi-use carbon sink for the waste streams of other processes. Parts fit a modular grid of holes which permit bolting and unbolting at regular intervals. All parts interoperate along the same uniform pattern.

Self reproduction lowers cost, decentralizes production, localizes supply and demand, enables innovation, reduces inventory and storage requirements, spreads knowledge, and empowers individuals and small groups. Parts we haven't replicated yet are known as vitamins and must be sourced from existing processes or manufacturers.

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Reasons to use Replimat

  • Build projects fast while having fun!
  • Simple to learn and use
  • Designed for disassembly and reuse
  • Standard components drastically reduce inventory, manufacturing requirements
  • Worldwide availability
  • Interoperate with modular construction systems

Design goals

  • The right way is the easiest to copy.
  • Design parts against grids to reduce complexity and increase modularity and reusability
  • favor parts which can be locally reproduced and have wide application
  • enable local production via locally made machines
  • consume waste materials for use as raw materials wherever possible - trash to treasure
  • promote pools of compatible parts, within which innovation can happen as fast as communication
  • strive toward openness and wide application of all components, production processes, firmwares and software
  • Choose reused, recycled, or renewable materials
  • Avoid unnecessary transformations. Reduce modifications to standard parts wherever possible.

Parts

Structures

Adjustable feet
Handles

Motions

Brakes, Carriage nuts, Hinges, Leadscrews, Gears, Chains, Belts, Pulleys and V wheels, Rails, Springs, Sprockets, Spindles

Electrics

Controllers, Headers, Magnets, Motors, Printed circuit boards, Ring terminals, Speakers, Solder, Soldering irons, Switches, Wires

Fluids

Hose clamps, Fluid pumps, Heat exchangers, Hoses, Pipe fittings, O rings

Hydraulics

Hydraulic hoses, Hydraulic couplers, Hydraulic pumps, Hydraulic valves, Hydraulic motors, Hydraulic pistons, Hydraulic power units

Pneumatics

Air cylinders, Pneumatic grippers, Pressure regulators, Push fit couplers, Solenoid valves, Teflon tapes, Vacuum pumps

Heating, ventilation, and air conditioning (HVAC)

Fans, Dehumidifiers, Heat pumps, Insect nets

Techniques

A Frames
Ball and socket joints
Cantilever supports
Count by fives
Dependent suspensions
Fasten loosely until assembled
Four bar linkages
Independent suspensions
Integrated wiring
Jansen linkages
Klann linkages
Layering frames
Mangle racks
Peaucellier-Lipkin linkages
Planetary gearing
Points away from people
Projects without tri joints
Rotation
Scissor linkages
Stacking crates
Steering knuckles
Sun and planet gears
Tensioning cords
Three point hitch receivers
Trapezoidal steering
V wheels and angles

Anti-patterns

Nuts inside frames
Cutting frames

Projects

Hand tools

Arbor presses
Center punches
Expanders
Grommet punches
Gear pullers
Sanding blocks
Tool organizers
Vises

Power tools

Chain saws
Drill bits
Flashlights
Lights
Cutoff saws
Multimeters
Soldering irons

Organization

Furniture

Booths
Cubicles
Easels
Hanging chairs
Platforms
Work lights

Assistive devices

Eye glasses
Hand bikes
Wheelchairs

Automation

Linear actuators

Energy

Power inverters
Power trailers
Thermal batteries

Transportation

Golf carts
Kayaks
Monorails
Paragliders
Passenger trailers
Scooters
Transmissions
Trucks
Vehicle ramps

Health and safety

Air filters
Bathrooms
Face masks
Insect control
Railings
Ramps
Showers
Stationary cycles
Waste bins
Water filters
Water collection and purification modules

Shelters

Bus stops
Cycle habitats
Scaffold homes
Towers
Trailer habitats

Information

Cameras
Camera dollies
Computers
Drones
Home assistants
Keyboards
Keyboard, video, and mouse switches
Mesh communicators
Mice
Phones
Printing presses
Projectors
Server racks
Signs

Heavy equipment

Backhoes
Cranes
Forklifts
Front loaders
Quick couplers

Agriculture

Automatic composters
Carts
Chicken tractors
Dishwashers
Fences
Greenhouses
Grow cabinets
Harvest spinners
Harvest bubblers
Harvest hangers
Kitchens
Milking parlors
Pellet presses
Ploughs
Tractors
Trellises
Raised planters
Soil blockers
Water collection systems
Wheelbarrows

Manufacturing

3D printers
3D scanners
Assembly lines
Automated drilling machines
Conveyor systems
Copy carvers
Drill presses
Forges
Kilns
Lumber mills
Metal mills
Pallet jacks
Planers
Plasma cutters
Potter's wheels
Power tools
Punch presses
Robot arms
Rotary welding positioners
Scaffolding
Sheet brakes
Table saws
Tool stands
Vacuforming machines
Wire EDM machines

Recreation

Cat trees

Recycling

Plastic recycling centers
Shredders

Repair

Hoists

Textiles

Bobbin Winders
Clothes horses
Drum carders
Screen printers
Sewing machines
Spinning wheels
Table looms
Warping boards
Washing Machines

Lifecycles

Seeds

Houston, TX
Lansing, MI
Muskegon, MI