Register To Comment
Page 3 of 3 FirstFirst 123
Results 21 to 29 of 29

Thread: FW electric crusher build

  1. #21
    The actuator has an attachment that allows it to bolt onto the claw, I am having this made for me at a local machining workshop. Before sending the drawings over I first 3D printed a prototype to check it correctly fitted the actuator shaft. It did beautifully.

    IMG_20181015_115346.jpg
    IMG_20181015_115429.jpg

  2. #22
    The actuator was next mounted into the from, this was tricky as a hole had to be accurately drilled through four different parts in order to create the anchor point. The hole was also reinforced with steel tubing.

    IMG_20181017_112903.jpg
    IMG_20181017_124652.jpg
    Attached Images Attached Images

  3. #23
    The front wedge was created, this was made from thick 20mm hdpe. It made the frame a lot more rigid.
    IMG_20181019_162511.jpg

  4. #24
    The front prongs were made next, these are from 20mm hdpe with 3mm aluminium on top. A lot of trail and error was needed in making sure they stayed flush with the floor without lifting the wheels up. More material may still need to be removed when the robots drive is tested.

    IMG_20181022_224649.jpg

  5. #25
    Member

    Status
    Offline
    Name
    Nat
    Robots
    Wanna Choppa (Axe FW) Short Circuit (HW RWs6) Locking Wheel Nuts (AW) DELLapidated bANTtery (AW) Lo
    Location
    Eastleigh, Hampshire
    Posts
    262
    That is coming along really nicely, nice solid build!
    Love how you used the dremel attachment to cut the wheels. What inserts are those you have used in the hubs?

  6. #26
    They are t nuts used in furniture, I drilled out the metric thread and cut a new imperial thread.
    Screenshot_20181023-112854.jpg

  7. #27
    Member

    Status
    Offline
    Name
    Nat
    Robots
    Wanna Choppa (Axe FW) Short Circuit (HW RWs6) Locking Wheel Nuts (AW) DELLapidated bANTtery (AW) Lo
    Location
    Eastleigh, Hampshire
    Posts
    262
    Ahhh interesting. I seen the ones you hammer into wood but not these

  8. #28
    So I have tried testing the drive of the robot, I have 4 15v drill motors powered with a 4s 4000mAh 60c lipo.

    To at least get the robot running I tried two hobbywing 60A esc's. It didn't work... The speed controllers couldnt get the wheels moving and they seemed to really struggle. I think I may have even blown one now as well. I know the problem is not with the motors or battery as directly connecting the two causes it to jerk quickly to life.

    I'm thinking I'm going to need something far more robust to get this thing going. I heard the tz85 controllers are good but discontinued. The replacement bb80 controllers seem good as well but are out of stock. I would need to use two feathertwo controllers but again these are out of stock.

    Seems finding a good featherweight ESC is like gold dust

    Anybody have any suggestions?

  9. #29
    Member

    Status
    Offline
    Name
    Nat
    Robots
    Wanna Choppa (Axe FW) Short Circuit (HW RWs6) Locking Wheel Nuts (AW) DELLapidated bANTtery (AW) Lo
    Location
    Eastleigh, Hampshire
    Posts
    262
    There are more and more reports of people having success programming the red bricks 70 amp units, there was a post in last few days of someone linking to a working hex file on Facebook group, will see if I can locate it

Register To Comment

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •