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eric-wieser / 2.12-robot

Final project for MIT's 2.12 - Intro to Robotics
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Holes are the wrong size on the arm motor mounts #24

Closed eric-wieser closed 8 years ago

eric-wieser commented 8 years ago

These should be M2.5 through holes, yet have diameter 2.05mm?

eric-wieser commented 8 years ago

Presumably this issue extends to the ones mid-arm as well

cssubedi commented 8 years ago

working on it...

Chandan Sharma Subedi Department of Mechanical Engineering Massachusetts Institute of Technology premphy@mit.edu | 617-608-8694

From: Eric Wieser [notifications@github.com] Sent: Thursday, November 12, 2015 9:40 PM To: eric-wieser/2.12-robot Cc: Chandan Sharma Subedi Subject: [2.12-robot] Holes are the wrong size on the arm motor mounts (#24)

These should be M2.5 through holes, yet have diameter 2.05mm?

— Reply to this email directly or view it on GitHubhttps://github.com/eric-wieser/2.12-robot/issues/24.

eric-wieser commented 8 years ago

Just replace them with a hole feature, since that'll pick the right diameter automatically

cssubedi commented 8 years ago

the two sides of servo have different hole diameter, 2.05mm and 2.07mm? wouldn't M2.5 be large for 2.05 diameter?

Chandan Sharma Subedi Department of Mechanical Engineering Massachusetts Institute of Technology premphy@mit.edu | 617-608-8694

From: Eric Wieser [notifications@github.com] Sent: Thursday, November 12, 2015 10:04 PM To: eric-wieser/2.12-robot Cc: Chandan Sharma Subedi Subject: Re: [2.12-robot] Holes are the wrong size on the arm motor mounts (#24)

Just replace them with a hole feature, since that'll pick the right diameter automatically

— Reply to this email directly or view it on GitHubhttps://github.com/eric-wieser/2.12-robot/issues/24#issuecomment-156309809.

eric-wieser commented 8 years ago

Where are you getting this information from? The datasheet for the servos says they're M2.5 tapped on one side, and M2.5 throughole on the other. Since the throughole side has holes for nuts, we want both sets of our holes to be through-holes

cssubedi commented 8 years ago

Updated!

cssubedi commented 8 years ago

I was just checking the hole dimensions in the CAD, but yeah if one is tapped and other is clearance, then it makes sense...I have updated the holes.

Chandan Sharma Subedi Department of Mechanical Engineering Massachusetts Institute of Technology premphy@mit.edu | 617-608-8694

From: Eric Wieser [notifications@github.com] Sent: Thursday, November 12, 2015 10:35 PM To: eric-wieser/2.12-robot Cc: Chandan Sharma Subedi Subject: Re: [2.12-robot] Holes are the wrong size on the arm motor mounts (#24)

Where are you getting this information from? The datasheet for the servos says they're M2.5 tapped on one side, and M2.5 throughole on the other.

— Reply to this email directly or view it on GitHubhttps://github.com/eric-wieser/2.12-robot/issues/24#issuecomment-156312849.