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Calculators
Calculators
We are closed on Monday 27 May for a Spring Bank Holiday. Business as normal from Tuesday 28th.
Calculators
Online calculators written by Technobots, we hope you find them useful for your project.
- 17/06/2010 Gear Size Calculator
- 17/06/2010 Gearbox Ratio Calculator
- 17/06/2010 LED Resistor Size Calculator
- 17/06/2010 Pneumatic Ram Calculator
- 17/06/2010 Robot / Vehicle Speed Calculator
- 17/06/2010 Timing Pulley Distance Between Centres Calculator
Electrical
- NiMH Battery Packs
- NiCd Cells
- Standard Battery Holders
- Enclosed Battery Holders
- Switched Enclosed Battery Holders
- PCB Mounting Battery Holders
- Battery Holders with Built-In DC to DC Converters
- Battery Monitors
- Polymer Lithium Ion Battery
- Equipment Wire
- Flexible Test Cable
- Switchgear Cable
- Silicone Insulated Cable
- Multicore & Ribbon Cable
- Audio Cable
- Pre-Crimped Wires Female/Female 7.5cm
- Pre-Crimped Wires Female/Female 15cm
- Pre-Crimped Wires Female/Female 30cm
- Pre-Crimped Wires Female/Female 60cm
- Pre-Crimped Wires Female/Female 90cm
- Pre-Crimped Wires Female/Female 152cm
- Pre-Crimped Wires Male/Female 7.5cm
- Pre-Crimped Wires Male/Female 15cm
- Pre-Crimped Wires Male/Female 30cm
- Pre-Crimped Wires Male/Male 7.5cm
- Pre-Crimped Wires Male/Male 15cm
- Pre-Crimped Wires Male/Male 30cm
- Wire Kits
- Mains Cable
- Cable Accessories
- Power Supplies
- Charging Leads
- Sealed Lead Acid Chargers
- NiCd & NiMH Chargers
- Lithium Chargers & Cutoffs
- Universal Chargers
- Fuses & Fuse Holders
- Model Motors
- Stepper Motors
- Powered Wheel Hub Motors
- Geared Motors 6mm Diameter
- Micro Metal Geared Motors
- Geared Motors 14mm Diameter
- Geared Motors 15.5mm Diameter
- Geared Motors 16mm Diameter
- Geared Motors 22mm Diameter
- Geared Motors 25mm Diameter
- Geared Motors 32mm Diameter
- Geared Motors 35mm Diameter
- Geared Motors 36mm Diameter
- Geared Motors 37mm Diameter
- Geared Motors 45mm Diameter
- Plastic Body Geared Motors
- Tamiya Geared Motors
- Encoder Geared Motors
- Motor & Gearmotor Brackets
- Gearboxes & Accessories
- Fans
- Pumps
- NanoMuscles
Electronics
- Amplifiers
- Speakers
- Sounder Transducers
- Piezo Sounders
- Buzzers
- Voice Activated Switch
- Echo / Delay / Reverb Units
- Microphones
- Port-O-Rotary
- Books & Magazines
- Ceramic Disc
- Axial Multilayer Caramic Capacitors
- Polyester Box
- Polypropylene Capacitors
- Mylar Polyester Film
- Standard 85 Deg C
- Low Impedance 105 Deg C
- Electrolytic Radial General Purpose 105 Deg C
- Microminiature Electrolytic Capacitors
- Tantalum Bead
- Super Capacitors
- Capacitor Kits
- 4mm Banana Connectors
- Audio & Video Adaptors
- Audio Leads
- DIN Plastic Body Plugs
- DIN Metal Body Plugs
- DIN Chassis Sockets
- DIN PCB Sockets
- DIN Line Sockets
- DIN Leads
- HDMI Leads
- Jack Plugs
- Jack Sockets
- Phono Leads
- Phono Plugs
- Phono Sockets
- TV Aerial Leads
- XLR Connectors
- Speaker Connectors
- BNC Connectors
- Breadboards & Breadboard Power Supplies
- Cable Assembly Housings
- Chassis Connectors
- Computer IT
- £1 Crimp Connector Packs
- Ring
- Fork
- Female Blade
- Piggy Back
- Male Blade
- Round Pin
- Bullet
- Butt
- Flat Pin
- Large Lug
- Kits
- Crocodile Clips
- D Type PCB Mounting
- D Type PCB Right Angle
- D Type Solder Bucket
- D Type High Density
- D Type Covers
- D Type Breakout Boards
- Female PCB Headers
- Battery Connectors
- High Power Connectors
- IDC Connectors
- JST, Molex & Similar Leads & Connectors
- Mains Leads
- Male PCB Headers & Jumpers
- PCB Cable Headers & Housings
- PCB Mounting Connectors
- Power Plugs, Sockets & Leads
- Tamiya & Deans Connectors
- Terminal Blocks
- Test Leads
- Uninsulated Ring Crimps
- Unusual / Specialist Connectors
- Raspberry PI
- Arduino Based Controllers
- Arduino Shields and Compatibles
- Arduino Accessories and Compatibles
- Arduino Based Controllers Special Order Products
- Servo Controllers
- PICAXE Controllers
- PIC Development Boards
- Orangutan Controllers
- PIC Programmers
- AVR Programmers
- Logic Controllers
- Propeller Controllers
- CNC
- AVR
- FPGA
- PIC
- MSP
- LPC
- ADuC
- SAM
- iPod
- Roomba
- ST
- PSoC
- Zune
- Beagle
- WIZnet
- STAMP
- Wiring
- Chumby
- .NET
- XMOS
- ARM
- Android
- ScreenKey
- IC DIL Sockets
- Copper Clad Stripboard
- Copper Clad PCB Boards
- Prototyping Boards
- Adaptor Boards
- ABS Enclosures Standard
- ABS Enclosures Flanged
- Diecast Enclosures
- ABS Top Hat Enclosures
- ABS Project Boxes
- ABS Boxes Hand Held
- ABS Enclosures with Panel Recess
- Technobots Standard and Specialist Boxes
- Enclosure Feet
- Knobs
- Heatsinks
- Panel Furniture
- Solder Tags
- Conductive Tapes
- Sparkfun Merchandise
- Moving Coil Meters
- E-Textiles
- Inductive
- Radio Controlled (RC) Relays
- Servo Interfaces
- Wireless Control
- USB, Network & Serial Interfaces
- Relay Modules
- MIDI
- GPS
- Printers
- Solid State Power Controllers
- Light & Sound Effects
- MIDI, MP3 & Ogg
- Variable Speed Motor Regulators
- Dimension Engineering Controllers
- Pololu Basic Motor Controllers
- Pololu Motor Controllers with Feedback
- Pololu Dual Motor Controllers
- Pololu Motor Drivers
- Solarbotics Motor Controllers
- Sparkfun Motor Controllers
- Cana Kit Motor Controllers
- Robot Electronics Speed Controllers
- Stepper Motor Drivers
- Technobots Controllers
- Kitronik
- Opto Isolators
- LED Hardware
- Surface Mount LEDs
- 1.8mm LEDs
- 2mm LEDs
- 3mm LEDs
- Standard 5mm LEDs
- Bi-colour & Tri-colour 5mm Leds
- Ultraviolet and Infrared 5mm LEDs
- RGB Static and Colour Changing 5mm LEDs
- Flashing 5mm LEDs
- 5mm LEDs with in-built Resistor
- Various 5mm LED Bulk Packs
- Various PCB Mounting 5mm LEDs
- 8mm LEDs
- 10mm LEDs
- Rectangular LEDs
- LED Indicators
- Power LEDs
- LED Kits
- LED Bargraph Displays
- LED 7-Segment Displays
- LED 7-Segment Multi-Digit Displays
- LED Matrix Displays
- LED Strips
- Numeric LCD Displays
- Alphanumeric LCD Displays Parallel I/F
- Alphanumeric LCD Displays Serial I/F
- Graphic LCDs
- Touch Screens
- Laser Diodes
- LED Drivers
- Electroluminescent
- Light Pipe and Fibre Optics
- Solar Cells
- Audio & Amplifier Kits
- Cana Kit Electronics Kits & Modules
- Kitronik Electronics Kits
- Electronics Assembled PCB / Breakout Boards
- Electronics Project Bare PCB / Breakout Boards
- Power Supply Kits
- Test Equipment Kits
- Motor Speed Controllers
- Timers
- General Interest Electronic Projects
- Games
- Electronics Kits of Parts
- Velleman Kits
- Radio Control
- 0.125W Carbon Film Resistors
- 0.25W Carbon Film Resistors
- 0.4W Precision 0.1% Metal Film Resistors
- 0.6W Metal Film Resistors
- 1W Metal Film Resistors
- 2W Metal Film Resistors
- 3W Power Resistors
- 5W Wirewound Resistors
- Shunt Bare Element Resistors
- SIL Resistor Networks
- DIL Resistor Networks
- Resistor Kits
- Metal Oxide Varistors
- Surface Mount Resistors - Size 0603 1%
- Surface Mount Resistors - Size 0805 1%
- Surface Mount Resistors - Size 1206 1%
- Miniature Single Turn Presets
- Single Turn Presets
- Single Turn Finger Adjust Presets
- 3/8in Multiturn Presets
- 3/4in Multiturn Cermet Presets
- Commercial 16mm
- Standard 24mm
- Miniature 16mm
- 9mm Square PCB Mount
- Slider Potentiometers
- Special
- Analogue Joysticks
- Thumbwheel Potentiometers
- Resistance Heaters
- Animation modules
- Pololu Robot parts
- General Robot Parts
- Solarbotics Robots & Kits
- Tracked Vehicle Kits
- Hitec Robots
- Robot Platforms
- Signal Diodes
- Rectifier Diodes
- Bridge Rectifiers
- Schottky Diodes
- Zener Diodes
- Transient Voltage Suppression Diodes
- Transistors
- Logic
- 100mA Voltage Regulators
- 750mA Voltage Regulators
- 1A Voltage Regulators
- 1.5A Voltage Regulators
- 2A Voltage Regulators
- 3A Voltage Regulators
- 5A Voltage Regulators
- Linear & Drivers
- Microcontrollers
- Converters
- Memory
- CPU Related
- Current Regulators
- SMD ICs
- Crystals
- Thyristors
- Light Sensors
- Reflectance Sensors
- Distance Sensors
- Cameras
- InfraRed Emitters
- InfraRed Receivers
- Photo Interrupters
- Inertial Measurement Units
- Accelerometers
- Gyros
- Magnetic Compass & Hall Effect Sensors
- Ultrasonic Sensors from Robot Electronics
- LV-MaxSonar Sensors
- XL-MaxSonar 1cm Res Sensors
- I2C XL-MaxSonar Sensors
- I2C XL-MaxSonar Rugged Outdoor Sensors
- I2C XL-MaxSonar Compact Outdoor Sensors
- XL-MaxSonar 1cm Res Outdoor Sensors
- XL-MaxSonar 1cm Res Compact Outdoor Sensors
- HRLV-EZ High Res Sensors
- HRXL-WR High Res Outdoor Sensors
- HRUSB MaxSonar Outdoor Sensor with USB Interface
- HRXL-WRC High Res Compact Outdoor Sensors
- HRUSB-MaxSonar High Res Sensors with USB
- LV-ProSonar Proximity Sensor
- ProxSonar Proximity Sensors with USB Interface
- Maxbotics Ultrasonic Sensor Accessories
- Thermo
- Peltier Devices
- Current Sensors
- Gas & Moisture Sensors
- Temperature Meters & Controllers
- Pressure Sensors
- Weather
- RFID & Barcode
- Various other Sensors
- Flex / Force
- PCB Mounting Relays
- Reed Switches
- Microswitches
- Toggle Switches
- Solder Lug Rotary Switches MBB
- Solder Lug Rotary Switches BBM
- PCB Mounting Rotary Switches MBB
- PCB Mounting Rotary Switches BBM
- Rotary Encoders
- Key Switches
- Tactile Switches 6x6mm
- Tactile Switches Miniature and Specials
- Tactile Switches 12x12mm
- Tactile Switches Right Angle
- Tactile Switches Button Caps
- Push Button Switches
- Arcade Style Switches
- Slide Switches
- DIP Switches
- Rocker Switches
- Foot Operated Switches
- Tilt Switches
- Keypads
- Trackballs
- Pull Switches
- Electronic Switches
- Solenoids & Solenoid Valves
- 3.3V Output Voltage Regulator Modules
- 5V Output Voltage Regulator Modules / BEC
- 6V Output Voltage Regulator Modules / BEC
- Other Fixed Output Voltage Regulator Modules
- Variable Output Step-Down Voltage Regulator Modules
- Variable Output Step-Up / Down Voltage Regulator Modules
- Variable Output Inverter Voltage Regulator Modules
- DC to AC Inverter Modules
- IC's
Mechanical
- Miniature Ball Bearings
- Miniature Flanged Ball Bearings
- Miniature Thrust Ball Bearings
- Bearing Blocks
- Miniature Model Bearing Sets
- Igus Pillow Block Bearings
- Igus 2-Hole Flange Bearings
- Igus 4-Hole Flange Bearings
- Igus Panel Mounting Bearings
- Needle Roller Bearings
- Deep Groove Bearings
- Pressed Steel Bearings
- Cast Flanged Bearings
- Cast Pillow Block Bearings
- Linear Bearings
- MakerBeam Starter Kits
- MakerBeam Beams
- MakerBeam Brackets
- MakerBeam Nuts & Bolts
- MakerBeam Accessories
- MakerBeam Compatible Products
- OpenBeam
- Inventa Plastic Construction etc..
- Tamiya Plastic Construction
- Nylon Fixings, Nuts, Washers and Screws
- Pan Head Screws
- Counter Sunk Screws
- Button Head Screws
- Cap Head Screws
- Set Screws
- Bolts
- Grub Socket Set Screws
- Nuts
- Washers
- Threaded Rod Studding
- American Thread Fixings
- Silverline Hardware & Fixings Packs
- Fixing Kits
- Anti-Vibration Mounts
- Springs
- Starlock Axle Caps & Washers
- Clips & Pins
- Spacers
- O Rings
- Tapes
- Adhesives
- MOD 0.5 Plastic Spur Gears
- Mini Plastic Gears
- Tbot MOD 1 Plastic Gears 2.9mm Bore
- MOD 1 Plastic Gears 3.9mm Bore
- MOD 1 Gear sets
- MFA MOD 1 Plastic Gears 2.9mm Bore
- MOD 1 Gear Chain
- MOD 1 Plastic Spur Gears - Brass Hub
- Plastic Rack & Pinion Gears
- Plastic Worm Gears
- Plastic Crown Gears
- Plastic Bevel Gears
- MOD 0.5 Steel Spur Gears
- MOD 0.6 Steel
- MOD 0.7 Steel Spur Gears
- MOD 0.8 Steel Spur Gears
- MOD 1.0 Steel Spur Gears
- MOD 1.25 Steel Spur Gears
- MOD 1.5 Steel Spur Gears
- MOD 1.5 Hostaform Spur Gears
- MOD 2 Steel Spur Gears
- Model Engineering Materials
- Perforated Steel Sheet
- Expanded PVC Sheet
- Foamboard
- Smart Materials
- Magnets
- Tubing
- PTFE Thread Tape
- BSP Stud
- BSPT Stud
- Equal Straight
- BSP Stud Elbow
- BSPT Stud Elbow
- Equal Elbow
- Equal Tee
- BSP Stud Tee
- BSPT Stud Tee
- Equal Cross
- Equal Y
- BSP Female Stud
- Reducing Straight
- Blanking Ends
- Manifolds
- Brass Fittings
- Pneumatic Tubing
- 3 & 5 Port Valves
- Quick Exhaust Valves
- Ball Valves
- Push-Fit Valves
- Non-Return Valves
- Model Valves & Cylinders
- Regulators
- Pressure Gauges
- Plastic Model Pulleys
- Aluminium Pulleys
- Model Pulleys with Brass Hub
- Brass Pulleys
- Wooden Pulleys
- Pulley Belts
- Synchroflex T2.5x6mm
- Synchroflex T5x10mm
- MFA T5x10mm Timing Pulleys
- Synchroflex T5x16mm
- Synchroflex T5x25mm
- Synchroflex T10x16mm
- Synchroflex T10x25mm
- Synchroflex T10x32mm
- Synchroflex T10x50mm
- Synchroflex AT5x10mm
- Synchroflex AT5x16mm
- Synchroflex AT5x25mm
- Synchroflex AT10x16mm
- Synchroflex AT10x25mm
- Synchroflex AT10x32mm
- Synchroflex AT10x50mm
- Plastic Timing Pulleys
- MXL025 Timing Belts
- Synchroflex T2.5x6mm Timing Belts
- MFA T5x10mm Timing Belts
- Synchroflex T5x10mm Timing Belts
- Synchroflex T5x16mm Timing Belts
- Synchroflex T5x25mm Timing Belts
- Synchroflex T10x16mm Timing Belts
- Synchroflex T10x25mm Timing Belts
- Synchroflex T10x32mm Timing Belts
- Synchroflex T10x50mm Timing Belts
- Synchroflex AT5x10mm Timing Belts
- Synchroflex AT5x16mm Timing Belts
- Synchroflex AT5x25mm Timing Belts
- Synchroflex AT10x16mm Timing Belts
- Synchroflex AT10x25mm Timing Belts
- Synchroflex AT10x32mm Timing Belts
- Synchroflex AT10x50mm Timing Belts
- Model Cams
- 1008 Taper Bushes
- 1210 Taper Bushes
- 1610 Taper Bushes
- 2012 Taper Bushes
- SM Bolt on Hubs
- BF Bolt on Hubs
- WH Weld on Hubs
- Pololu Mounting Hubs
- Plastic Mounting Hubs
- Silver Steel Bar
- Model Steel Shafts
- Shaft Couplings
- Gear & Shaft Adaptors
- Collets + Collars
- Shaft Mounts (Linear Rails)
- Linear Bearing Slide Units
- Crank Handles
- Hardened Chromed Steel Bar
- 6mm Steel Chain Sprockets
- 8mm Steel Chain Sprockets
- 0.375 Inch Steel Chain Sprockets
- 0.5 Inch Steel Chain Sprockets
- 0.5 inch 081 Steel Chain Sprockets
- Simplex Steel Chain
- Duplex Steel Chain
- Steel Chain Links
- Plastic Model Chain & Sprockets
- Idler Sprockets
- Screwdrivers
- Screwdriver Sets
- Pliers
- Cutters
- Crimping Pliers
- Hex Keys
- Wire Strippers
- Circlip Pliers
- Adjustable Spanners
- Spanners
- Socket Sets
- Saws
- Saw Blades
- Files
- Tin Snips
- Hammers
- Knives
- Punches
- Rivets and Rivet Tools
- Electronics Tools
- Power Tools
- Power Tool Accessories
- Antex Soldering Irons
- Antex Soldering Iron Bits
- Solder & Accessories
- Silverline Soldering Irons
- Silverline Solder & Accessories
- Sparkfun Special Order Products
- Test & Measurement
- Engineers Tools
- Sparkfun Special Order Tools
- Plastic Model Wheels
- Rubber Tyre Wheels
- 10mm Wide Banebots Wheels
- 20mm Wide Banebots Wheels
- Banebots 1/2" Hex Mounts
- Banebots 3/4" Hex Mounts
- Banebots 3/4" Round Bushing Mount
- Tamiya Wheels
- Solarbotics Wheels
- Pololu Wheels
- Wheel Adaptor
- Cotton Reel Wheels and Tyres
- Ball Transfer Units
- Tracks
- Propellers
End of Line Savings
Site news
- 09/05/2013 OpenBeam now Available from Technobots
- 21/03/2013 Change to Services Whilst we are closed for staff holidays
- 10/03/2013 The Annual Royal Mail Price Hike
- 26/02/2013 EPE Magazines 30% Off
- 22/01/2013 29 Different Micro Gearmotors Added
Newsletter
Testimonials
"Always happy with the Service and quality and nobody apears to match your prices. Well done"
– Brian Knight, 20/05/2013
– Sam Harrison, 10/05/2013
– Alex, 08/05/2013
"Dear Technobots Team
I have just received the packet with all the excellent products. Thank you..."
– Johan W. van Deventer, 08/05/2013
"All been good so far, I particulary like the reasonable P&P, not always seen with online..."
– Ian, 22/04/2013
Just a few of the companies Technobots are an official distributor for:
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