This is probably dated and needs a good house-cleaning…

electronics

• alltronics
• amazoncom-ueb-5pcs-mt3608-2a-dc-dc-step-v-to-9v-12v-28v-for-arduino-home-kitchen
• analog-embedded-processing-semiconductor-company-texas-instruments-ticom
• digikey-electronics-electronic-components-distributor
• gold-twitter-elmo
• Grainger Industrial Supply - MRO Products, Equipment & Tools
• Jameco Electronics - Electronic Components Distributor
• MHz Electronics, Inc. - Buying and Selling Used Electronics, Test & Measurement, Semiconductor Manufacturing Equipment
• Radio Shack
• schneider-electric-motion-usa-industry-leader-in-integrated-motors
• Tri-Tek Electronics - Electronic Parts Store Serving Phoenix and Mesa

bluetooth

• bluetooth-smd-module-rayson-btm-182-wrl-09913-sparkfun-electronics
• sparkfun-bluetooth-modem-bluesmirf-gold-wrl-12582-sparkfun-electronics

digikey

• 009175003001006-avx-corporation-connectors-interconnects-digikey
• 009176001032106-avx-corporation-connectors-interconnects-digikey
• 640639-2-te-connectivity-amp-connectors-connectors-interconnects-digikey
• 709176001532006-avx-corporation-connectors-interconnects-digikey
• connectors-interconnects-electronic-components-distributor-digikey
• ixel40n400-ixys-discrete-semiconductor-products-digikey
• stw3n150-stmicroelectronics-discrete-semiconductor-products-digikey

microcontrollers

• cy8ckit-042-psoc-4-pioneer-kit
• ww1_microchip_com_downloads_en_devicedoc_70046e_pdf
• ww1_microchip_com_downloads_en_devicedoc_70138e_pdf
• board comparison

motors

• Allied Motion
• Faulhaber Store
• brushless-dc-motors-robotshop
• brushless-dc-motors-servo-motors-dc-motokoford-engineering-epoxy-adhesives-knobs
• brushless-gear-motor-all-industrial-manufacturers-videos
• cy8ckit-037-psoc-4-motor-control-evaluation-kit
• DC Motors - MPJA.COM
• hitec-rcd-usa
• pololu-51-micro-metal-gearmotor-lp-6v
• usautomation
• youtube

Motor Drivers

• motor driver
• https://www.roboticelements.com/

robotics-kits

• Sunfounder - Starter Kits, Robots DIY Electronic Kits for STEM Education

sensors

• Types of Robot Sensors
• 0-1 Bar Altimeter Pressure Sensor - MS5540C Series - TE Connectivity
• Angle Position On-Axis - ams
• fsr-force-sensing-resistor-robot-force-srobot-pressure-sensor-robot-touch-sensor
• lpm200-panel-mount-load-cell
• rieker-total-sensing-solutions
• senseg
• sensor-technology-syntouch-syntouch-inc

tape springs

• (PDF) Experimental Investigation of Tape Springs Folded in Three Dimensions
• Analysis of tape spring hinges - ScienceDirect
• cambridge active buckling tape spring at DuckDuckGo

parts and materials

• DFRobot - Quality Arduino Robot IOT DIY Electronic Kit
• FAULHABER Drive Systems
• generic-application-error-test-jsp-item
• mcmaster-carr
• miki-pulley
• Optimum® Dispense Tips - Dispense Tips and Needles - Nordson EFD
• Precision Products - WM Berg
• robot-store-hk-robot-parts-mit-handyboarts-robot-cooling-fans-motor-cooling-fans
• Small Mechanical Components- Precision Gears, Timing Belts, Gear Assemblies, Timing Belt Pulleys, Couplings, Bearings and much more - SDP-SI

bearings

• mt-series-slewing-ring-bearings-for-cranhoists-industrial-tables-kaydon-bearings
• nsk-home-ball-bearings-roller-bearings-linear-components-automotive-components
• vxb-bearings-online-store-the-ball-bearing-supplier-distributor

gears-gearboxes

• microkit-catalogue-pager-motors-small-gears-difficult-to-find-parts
• pinions-the-small-gears-radical-rc
• servoclass-double-flex-couplings-servo-couplings
• Welcome to rushgears.com - Nobody makes custom gears faster!!!

springs

• smalley-steel-ring-company

Materials

• ACP Composites
• adhesives-for-paper-wiki
• ASI 306 Electronic Grade Self-Leveling Silicone
• pi-copper-kapton-polyimide-film-insulation-heat-sealable-film
• Plastics Supplier in Phoenix AZ - Vespel, Polycarbonate, Acrylic
• True Tape, LLC-
• _professionalplastics_com
• Ait wood

Rubber and Molds

• Smooth-On, Inc. - Mold Making & Casting Materials - Rubbers, Plastics, Foams & More!
• Specialty Silicones Manufacturer - Quantum Silicones - QSi

3D Printing soft filament

• https://recreus.com/gb/content/35-filaflex
• https://www.esun3d.com/elastic-tpe-83a-product/