Difference between revisions of "DIY Lawnmower 2023"
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Vevor 24V 350W Nennstrom: 18,4A Brushed Permanentmagnetmotor Gear Reduction Packungsgröße: 22 x 19 x 17 cm (8,66 x 7,48 x 6,69 Zoll) Bruttogewicht: 3,05 kg | |||
* https://www.ebay.de/itm/134260101005?hash=item1f42868f8d:g:t1kAAOSwf0ljOTPG&amdata=enc%3AAQAIAAAA8Ao6wUUoT1WDjHCODdl3m2xH255xL30h99ZcuqQSUjSyt7JvM02btIHsmHAXNg8FOqT0oIQPQ1KEC%2BnLal19zabXO%2FLykrgs0JxbSzZ8Wn4lngUubdhcxlNQ9op1Sb4uRV9cEiDEpRE8FClxXNuuwthOD1ZohDHUaSX2pwc4qnR15VhyL%2BrjcdeHNSCwr5vR7opzR4d5lTXLmMAF%2F4N%2BAWB1l1EexFKuGxqAR7dT0KqQ6pl9WV44uaR0jWWJPDtfi3zOEBwXzrODyMSYV3K71T23rYouoCzlAZCzlSftYSI9QHaSTRe6hc%2F%2FqWAFoGA42A%3D%3D%7Ctkp%3ABk9SR5qVyrn6YQ | * https://www.ebay.de/itm/134260101005?hash=item1f42868f8d:g:t1kAAOSwf0ljOTPG&amdata=enc%3AAQAIAAAA8Ao6wUUoT1WDjHCODdl3m2xH255xL30h99ZcuqQSUjSyt7JvM02btIHsmHAXNg8FOqT0oIQPQ1KEC%2BnLal19zabXO%2FLykrgs0JxbSzZ8Wn4lngUubdhcxlNQ9op1Sb4uRV9cEiDEpRE8FClxXNuuwthOD1ZohDHUaSX2pwc4qnR15VhyL%2BrjcdeHNSCwr5vR7opzR4d5lTXLmMAF%2F4N%2BAWB1l1EexFKuGxqAR7dT0KqQ6pl9WV44uaR0jWWJPDtfi3zOEBwXzrODyMSYV3K71T23rYouoCzlAZCzlSftYSI9QHaSTRe6hc%2F%2FqWAFoGA42A%3D%3D%7Ctkp%3ABk9SR5qVyrn6YQ | ||
Revision as of 22:35, 12 June 2023
Introduction
2 wheel drive using kids ATV chassis with 3" wheels without differential but with steering, 2x350W motor; speed controller. The cutter is a part from an old lawn mower.
https://www.kuldnebors.ee/search/search.mec?pob_action=search&search_O_string=atv&search_source=kwc
Arduino + GPS + IMU (Differential GPS).
Consider also
- ArduPilot https://ardupilot.org/rover/docs/gettit.html
- Cube Orange https://ardupilot.org/copter/docs/common-thecubeorange-overview.html
- OpenMower
Theory
Wheels and tires
Using an old kids ATV; 3" wheels; too small for pushing the snow, but perhaps enough for the first project.
Cheap axis:
- 125cc 835 mm, 55.90€: https://www.tuontitukku.fi/pienkone-vene-ja-varaosa/monkija-125cc-taka-aksila-835-mm-taka-aksila-monkijaan-83-5-cm/p/6419773800559/
- Takanapa 4x110 Mikilon Pentora 125cc; 32.90€: https://www.tuontitukku.fi/pienkone-vene-ja-varaosa/takanapa-4x110-mikilon-pentora-125cc-taka-akselille-jossa-19-os-20mm-boori/p/9977000025276/
Ulkohalkaisija täynnä noin 36cm (6")
Current
Heat Dissipation
Motor
Torque, Speed, Duty Cycle
Vevor 24V 350W Nennstrom: 18,4A Brushed Permanentmagnetmotor Gear Reduction Packungsgröße: 22 x 19 x 17 cm (8,66 x 7,48 x 6,69 Zoll) Bruttogewicht: 3,05 kg
410-9T Kettenrad
9 Zahnrad für Kette Nr. 410, Teilung 12,7 mm. Besonders gut für Heimwerker geeignet, da der Antrieb mit Standard-Fahrradketten (1/2 Zoll Teilung) kompatibel ist
Motor Speed Controller BTS7960
We use BTS7960 based speed controller with max 43 Amps current. The datasheet is available at https://electropeak.com/learn/download/bts7960-43a-motor-driver-datasheet/
Example code from https://electropeak.com/learn/interfacing-bts7960-43a-high-power-motor-driver-module-with-arduino/
Pins
- VCC: 5V
- GND: Ground
- IS-R: Input signal for detecting high current – Straight rotation
- IS-L: Input signal for detecting high current – Inverse rotation
- EN-R: Output Signal for controlling motor direction – Straight rotation
- EN-L: Output Signal for controlling motor direction – Inverse rotation
- WM-R: PWM Signal for controlling motor speed – Straight rotation
- PWM-L: PWM Signal for controlling motor speed – Inverse rotation
Motor pins (High current):
- M+: Motor Positive; M-: Motor negative
- B+: Battery positive; * B-: Battery negative
Some instructions:
- https://www.homemade-circuits.com/dc-motor-speed-controller-circuits/
- https://howtomechatronics.com/tutorials/arduino/arduino-dc-motor-control-tutorial-l298n-pwm-h-bridge/
- https://howtomechatronics.com/tutorials/arduino/arduino-dc-motor-control-tutorial-l298n-pwm-h-bridge/
Extra things and older thoughs.
Use PWM. Feedback? Arduino L298N H-bridge.
Arduino pwm motor controller 300W 36V 20Amps
- https://www.pololu.com/product/755
- https://www.infineon.com/cms/en/product/evaluation-boards/bldc-shield_ifx007t/
- https://www.infineon.com/cms/en/product/evaluation-boards/kit_xmc47_relax_5v_ad_v1/
- https://www.canakit.com/50a-dc-pwm-motor-speed-controller.html
https://electropeak.com/learn/interfacing-bts7960-43a-high-power-motor-driver-module-with-arduino/
High power dc motor speed controller
- https://www.ebay.de/itm/255283289430?hash=item3b7011dd56:g:ooAAAOSwhexb6eW9&amdata=enc%3AAQAIAAAA4Gjfo%2FMILLwl3G9ygIqNAj7fpl%2FtigoAQMba%2FwqTqxj%2F4nqjin1d6Re7Jqa2XBzZBTYTsTZEUjiXEhH%2BpvJd1RaWoR5%2FsWhgtcwpXnTrpL1Y5wDPHZ1wJJTmdK4mb4LOQLw%2BmqT%2B9tcOBX%2BAwD37WZcEfTk3P5B6boz%2BRV7G1fj3KiqeZ%2B0ZA98o9mIFBOG2E6fxDo9K3cQN2u5M53jQ7PrP6%2BjtJTGNnfCQA0tuOE8V8bAfFmBRCnPAFt001aTDSAUCuyxzZNQK%2FaKJMdzbLnmLjxgPMQmkSpSDCFQrBg8D%7Ctkp%3ABFBM6Ie9uvph
- Amazon: Songhe BTS7960 43A, HiLetgoBTS7960 43A, Melife PWM 10-50V 60A,
- https://www.ebay.de/itm/123021644824?hash=item1ca4a95418:g:nbkAAOSwFwlgA~qm&amdata=enc%3AAQAIAAAA4D2ya%2FD4v6plC%2B8Wi7%2BlXiqyFvx9ZVmTFiGrhSZCNY2YnjdXjYQSdBGKApiC33DWt5chAE5RKlktpUjFvfAH7zshCx42W8yONOQ4zchZuo1246qn5qB8HmRBhVVuQ4urPQKY5239P%2FA%2BODko%2BEp8V0A2%2FuEAhTO2Dxs5GGNBIJL45pGyQFEMNEa8NpisE0ebKnTokdhtuJVPQNap6U0DW1jeEwasXUUanOoWC0uDn%2Bt2gC3ulFIBbXn1epQw3wCnTR1iOv%2BRR%2Fz5KjKpYRsaZfmprbV7gONgMIgdZ3QgdJ%2B6%7Ctkp%3ABk9SR7rT4rf6YQ
- https://www.ebay.de/itm/165676940912?hash=item26931d7e70:g:q8YAAOSwVM1jIqNq&amdata=enc%3AAQAIAAAA4CKa5nRcyz0RlXcN3Iw7mhcTalyBSBfC33bdLn08wqjCcgaPgKgjMgdkmbwdwGTC6QibwZ7WjVqyWysp7Uh97reXnrw5Srml4CJ9O%2FyBC8wqga6cohaq7tBAZOgFx9G1PP9PzZ7QEYWiGCiR4%2F55MdLP8kI%2B4gynCWyknKAlshev5BExzvKvazuC0SGQQEqT6WFZy6m%2Bp1jw7jwGlg8I8dFZ0O5s%2Fizj6E7DzlotaLFb8OiyJKRzpuPZSo2vpAM2Q5831W6kODRgLCo0N0QlmaU5HUxUq4AEXCiPrsit0W7R%7Ctkp%3ABk9SR7zT4rf6YQ
- MD25HV https://makermotor.com/pn00218-cyt13-25amp-7v-58v-high-voltage-dc-motor-driver-speed-controller-md25hv/
