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AngelLM / Thor

DIY 3D Printable Robotic Arm
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ART2 BodyA that meshes with two gears always slipping. Bad fit? #67

Closed martinbarr closed 5 years ago

martinbarr commented 6 years ago

Hi Angel,

After some serious testing and trials in getting the robot arm to move, it worked for a little while then I started having serious slipping issues. I watched and saw the ART2 A arm flex too much at the bottom where the only support it has are the two pins on the top motor and the ART2 Union. Not sure how everyone else has got on with this or if they have also had issue too. Would love to know. I will look to try and solve my particular issue,

Thanks in advance

Martin Barr

martinbarr commented 6 years ago

Hi All, I logged this issue and carried on investigating.

After several attempts to correct I found this issue that I thought I would share. Maybe I missed the depth that the pulley wheel should be. I did a sketch to show what I did.

art2_solution

martinbarr commented 6 years ago

I thought I had solved it but after a while it starts to slip again.

AngelLM commented 6 years ago

Hi @martinbarr ! Do you think that it's possible that the pin in the opposite side is not longer enough? This could be causing this articulation to be a bit loose.

Other reason could be a bending issue... Maybe the Articulation 2 is not acting as rigid piece and the lower parts are bending outwards... I don't really know.

AngelLM commented 6 years ago

Did you solved it?