Difference between revisions of "RC Lawn Mower"

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(→‎Materials On Hand: added switches)
(→‎Overview: added calendar event)
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Pictures of the progress we're making are available here:  [[RC Lawn Mower/Pictures]]
 
Pictures of the progress we're making are available here:  [[RC Lawn Mower/Pictures]]
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== Calendar == 
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* June 26 2010, 1:00pm - 2:00pm: RC Lawn Mower
  
 
== Status ==
 
== Status ==

Revision as of 15:31, 21 June 2010

Creator:
Omegix
Status:
Building
Born On:
15:05, 22 April 2010 (CDT)
Last Updated:
15:31, 21 June 2010 (CDT)

Overview

Remote Controlled (RC) Lawn Mower that Ratmandu was talking about.
See example here: http://members.iinet.net.au/~tnpshow/RCLM/intro.htm


We have a mailing list for the mower here: http://lists.makerslocal.org/mailman/listinfo/rcmower

Pictures of the progress we're making are available here: RC Lawn Mower/Pictures

Calendar

  • June 26 2010, 1:00pm - 2:00pm: RC Lawn Mower

Status

To-Do

  1. Create wooden mock up for how the battery holder and bicycle wheel attachments will look. Take measurements from wooden mock up, acquire angle iron and supply

Completed

Pumped up tubes with bicycle pump (in jeff's car) May 24th
Purchased tubes for the bicycle wheels. Took measurements and marked the steel tubing that will attach the chassis frame to the lawn mower May 22nd
Omegix Continued Ratmandu's angle grinding effort to smooth out weld spots on the chassis May 19th, 2010
Had our first build on the weekend of May 14th
  • On Friday Ben and I picked up two 8" diameter swivel castor wheels for the front of the mower.
  • Scott showed us how to use the portable band saw to cut 45 degree angles into the steel tubing to make the frame fit together the best. He then put tack weld spots where the pieces met to hold the chassis frame in place.
  • Ratmandu finished the welding job on the rectangle chassis over the weekend.
  • The bolt on the height adjuster is 1/2 inch. The threaded portion is too small to go all the way through the square tubing. Someone suggested we replace the current bolt that came with the mower (the one attached to the height adjuster) with a longer bolt.
May 14,2010
Had our first meeting may 8th. Came up with a design similar to the one in the example link above, except no castor wheels in the front and using bicyle wheels in the back, attached to the motor via bicyle chain. Currently looking for metal for the chassy. Omegix 12:10, 10 May 2010 (CDT)


Meterials

Potential Materials

  • Bicycle Gear Chains
  • Bluetooth to Serial module (for controlling via internet)

Materials On Hand

  • On Switch (provided by Preaux)
  • Big Red Momentary Kill Switch (provided by Preaux)
    • Could put this in between the wire connecting to the spark plug
  • Two 8" swivel castor wheels ($14 each)
  • Metal Bars for chassis (See metal chassis from example above)
    • Purchased 20' of 1" 14 gauge square steel for $18. ($14 for the bar, $3 to have it cut)
    • Two 48"
    • Two 22"
    • One Solid piece of whatever was left.
  • Two Bicycle Wheels
    • Two tubes purchased for the wheels. ($6 each)
  • Lawn Mower (retrieved from Makers Local craigslist add: http://huntsville.craigslist.org/wan/1715017438.html) ($30 for two mowers)
  • Sea Foam (engine cleaner. the mower took a bit to stay running the first time we cranked it). $10
    • Omegix has in the trunk of his car.
  • Motor Control
    • The Current Victor 883 on the board has a burned out FET, causing the motor to only spin in one direction. Ratmandu said he might be able to fix it with tools like what he has at work, but not with the soldering tools at the shop.
    • PreauxPhoto has one of these available: http://www.firstwiki.net/index.php/Victor_884
      • This microcontroller will take in PWM and output enough current to drive larger motors
  • Motors
  • Battery (for powering the electric motors)
    • Spacefelix said he would donate his battery in the storage room to the project if we wanted it
  • Battery (for powering the electronics)
    • Preaux has provided a special battery that is resistant to loss of power due to vibrations, etc)
    • Currently in Omegix car trunk. Omegix 12:40, 26 May 2010 (CDT)
    • battery dimensions: 4.5"D x 8.5"W x 5.5"T
  • RC Transmitter and Receiver Unit (hobby RC receivers output PWM signal)
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