Ball Launcher - techniq/wiki GitHub Wiki
Design
- Tennis ball throwing machine
- Soccer ball practice machine
- Sports ball launcher
- http://web.archive.org/web/20121102195649/http://www.sptennis.com/manuals/BallMachines.pdf
Datasheets
- Teensy 3.2 Pins
- Arduino Nano Pinout
- Cytron MDD10A Dual Channel 10A DC Motor Driver
- DRV8825 Stepper Motor Driver Carrier, High Current
- A4988 Stepper Motor Driver Carrier
- DRV8833 Dual Motor Driver Carrier
Calculations
- Physics of the Flywheel Launcher
- Speed versus RPM calculator
- Possible formula to calculate ball speed from wheel speed & radius?
Articles
Parts
Controllers
- Adafruit DC & Stepper Motor HAT for Raspberry Pi - Mini Kit - $22.50
- Pololu DRV8835 Dual Motor Driver Kit for Raspberry Pi - $7.49
- Pololu Dual MC33926 Motor Driver for Raspberry Pi (Partial Kit)- $29.95
- Pololu Dual MC33926 Motor Driver for Raspberry Pi (Assembled) - $34.95
- 12V 24V Max 20A PWM DC Motor Stepless Variable Speed Control Controller Switch - $4.99
- Unique Goods -PWM DC Motor Speed Controller Adjustable Variable Speed Regulator - $14.19
- 6V-24V 10A DC Motor Speed Driver PWM Adjustable Variable Controller Regulator - $5.60
- Pololu Simple Motor Controllers - $31.95 - $59.95
- Pololu High-Power Motor Drivers
- Cytron 13A, 5-25V Single DC Motor Controller - $13.82
- 10A 5-25V Dual Channel DC Motor Driver - $23.49
- 30A 5-30V Single Brushed DC Motor Driver - $33.13
- DC Motor Driver 2x15A, 4.8-35V - $44.95
Motors
- http://www.ebay.com/itm/1-hp-12-volt-electric-DC-motor-generator-2999-RPM-12mm-shaft-permanent-magnet-/301954434641 - $93.46
- http://www.ebay.com/itm/NEW-12V-DC-Electric-Motor-0-65HP-at-3500RPM-CW-/361524972024 - $40.95
- http://www.ebay.com/itm/LARGE-12-VDC-1-4-HP-12-VOLT-DC-MOTOR/142065537075?_trksid=p2047675.c100009.m1982&_trkparms=aid%3D888007%26algo%3DDISC.MBE%26ao%3D1%26asc%3D20131227121020%26meid%3Da25e3566947e456cbc7d152a173f81f0%26pid%3D100009%26rk%3D1%26rkt%3D1%26sd%3D361524972024 - $59.99
- http://www.ebay.com/itm/Mabuchi-555-12V-DC-Motor-Printer-Portable-Drill-Robotics-Hobby-Motor-/281551583214 - $7.95
- http://www.ebay.com/itm/12v-DC-motors-/172145763007 - $18.00
- http://www.ebay.com/itm/NEW-12V-DC-Electric-Motor-0-118HP-at-2800RPM-CW-/281988995959 - $34.55
- http://www.ebay.com/itm/DC-12V-3000-RPM-Speed-7W-5mm-Dia-Shaft-Wired-Connector-Metal-Electric-Motor/311070288733?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20131003132420%26meid%3D4c874c800258485e95ae137a26d84a46%26pid%3D100005%26rk%3D1%26rkt%3D6%26sd%3D271892503104 - $29.87
- http://www.ebay.com/itm/DC-12V-3000RPM-High-Torque-Wired-Permanent-Magnet-Motor/271892503104?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20131003132420%26meid%3Db48f5dace74f40d3a9094d18b1a5c00b%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D231523269413 - $34.36
- http://www.ebay.com/itm/DC-12V-5000-RPM-Speed-6mm-Dia-Shaft-Magnetic-Gearbox-Electric-Geared-Motor-/231287071002 - $19.07
- http://www.ebay.com/itm/DC-12V-7W-3000RPM-High-Torque-2-Wired-Electric-Motor-/231523269413 - $34.55
- http://www.surpluscenter.com/Electrical/DC-Motors/DC-Motors-Face-Mount/1-11-HP-12-VDC-2820-RPM-PM-MOTOR-10-2521.axd - $16.99
- http://www.surpluscenter.com/Electrical/DC-Motors/DC-Motors-Face-Mount/?page_no=1
- https://www.surpluscenter.com/Electrical/DC-Motors/DC-Motors-Face-Mount/1-7-HP-12-VDC-3785-RPM-PM-MOTOR-10-2520.axd
- http://www.ebay.co.uk/itm/Igarashi-N3657-Motor-12V-DC-4150-RPM-High-Torque-DC-Motor-Long-Shaft-/271465786940 - $9.95
- http://www.ebay.com/itm/Mabuchi-555-12V-DC-Motor-Printer-Portable-Drill-Robotics-Hobby-Motor-/281551583214?hash=item418dc837ee:g:F-sAAOSwg3FUqLid - $7.95
- http://www.ebay.com/itm/NEW-12V-DC-Electric-Motor-0-65HP-at-3500RPM-CW-/361524972024?hash=item542c9149f8:g:UPYAAOSw6wRW~ux5 - $40.95
- http://www.ebay.com/itm/300G-cm-DC-12V-0-58A-Brushed-Electric-Motor-3000RPM-New-Free-Shipping/252346722211?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D38636%26meid%3D44cd280cb76a4f5a80776d5a5d986481%26pid%3D100005%26rk%3D5%26rkt%3D6%26sd%3D361524972024 - $31.39
- http://www.ebay.com/itm/NEW-12V-DC-Electric-Motor-0-09HP-at-2250RPM-CW/351695063429?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D38636%26meid%3D44cd280cb76a4f5a80776d5a5d986481%26pid%3D100005%26rk%3D1%26rkt%3D6%26sd%3D361524972024 - $34.47
- http://www.ebay.com/itm/NEW-12V-DC-Electric-Motor-0-118HP-at-2800RPM-CW/281988995959?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D38636%26meid%3D44cd280cb76a4f5a80776d5a5d986481%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D361524972024 - $34.55
More
Universal mounting hub
Wheels
- http://www.mcmaster.com/#catalog/122/1405/=13upjgx
- Curt 28912 Marine Jack Caster Wheel with Bolt and Bushing - $9.41 (Prime)
- SeaSense Jack Nylon Wheel, 6 X 2-Inch - $18.42 (Prime)
- Fulton 6-Inch Poly Wheel Kit - $16.15 (Prime?)
- 6 Inch Wheel Swivel 360 Degrees - Trailer Caster Wheel with Pin for Boat Hitch Replacement Removable - $13.49 (Free shipping)
- 6" x 2" Phenolic Resin Wheel for Casters and Equipment - 1200 Lbs Capacity - Roller Bearing 1/2" Bore - $6.99 (+$9.50 shipping)
- RWM Casters Performance TPR Rubber Wheel, Roller Bearing, 525 lbs Capacity, 6" Wheel, Dia, 2" Wheel, Width, 2-7/16" Plate Length - $21.70 (Prime)
- Albion PB0624112 6" Diameter Polypropylene Wheel, 2" Tread Width, Plain Bore, 2-3/16" Hub Length, 3/4" Bore ID, 3/4" Bearing ID, 650 lb. Capacity - $8.62 (Prime - out of stock)
- Albion IS0620019 6" Empire Gray TPR on Polypropylene Flat Tread Wheel, 2" Tread Width, Plain Bore, 2-3/16" Hub Length, 1-3/16" Bore ID, 3/4" Bearing ID, 500 lb. Capacity - $12.73 (Prime - out of stock)
- Albion IB0620112 6" Empire Polypropylene Caster Wheel, 2" Tread Width, Roller Bearing, 700 lb. Capacity - $14.57 (Prime - out of stock)
- Albion IX0620019 6" Empire Polyurethane on Polypropylene Flat Tread Wheel, 2" Tread Width, Plain Bore, 2-3/16" Hub Length, 1-3/16" Bore ID, 3/4" Bearing ID, 800 lb. Capacity - $15.74 (Prime - out of stock)
- Albion IS0620112 6" Empire Gray TPR on Polypropylene Flat Tread Wheel, 2" Tread Width, Roller Bearing, 2-3/16" Hub Length, 1-3/16" Bore ID, 3/4" Bearing ID, 500 lb. Capacity - $16.93 (Prime - out of stock)
- ( 2 each ) ALBION Caster Wheel, 8" x 2" extra soft - $16.00 ($11.00 expedited shipping)
- http://www.albioncasters.com/wheels
- http://www.vexrobotics.com/vexpro/all/colsonperforma.html