Robot Dude wrote:
If you got the Phoenix from us, with servos, the you should have received the thinner nuts, packaged in the 485 servo boxes. If you got the Phoenix without servos, and sourced them yourself, then you do not have the thinner nuts. Another option is to install the bearing with the screw installed from the bracket side, I.e. the screw head is on the inside , and the nut is on the outside.
I did get the whole kit from you. It was on hold waiting for back ordered servos, so I assume when they came in they went straight into the my order without the thinner nuts... No worries...I'll go down to the HW store and get some 3mm x 8mm Flat head screws and use the screw head on the inside. I kind of like the idea of zero interference with the bracket/screw.
Alamo wrote:
Countersunk screw head? maybe... but you lost me on the IK part.
KM6VV wrote:
I think he's suggesting that adding a spacer under the flanges of the R/C servo would change the centering (or possibly length of a leg?) of the tibia, which would necessitate a modification of the IK calculations.
I think probably not. The thickness of the spacer would be trivial, and we don't account for any leg offset (shouldn't be any) from the centerline of the coxa that I can see. I doubt if you could even determine the effect of having a slight (0.03125", 1/32 maybe?) offset against the total length of the leg. Try it!
Alan KM6VV
Yes this is what I meant... You are correct that it probably won't make a difference really (particularly for this project)... I'm new to this scene, but the engineer in me has a tendency to over think things. I suppose if you had a program where the robot used a pen or stylus then you might have a problem sharing it without modifying the IK calculations...
Cool robot! I'm in it for the knowledge and hope to use it to put legs on an idea I have...
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