
MovieMaker

I am very curious. I bought some metal horns for my robot arms. They were supposed to be made especially for the 995s. When i got them, I gently tried to put them on and they would not budge. I put them on a HiTec plastic servo and they fit. I assumed that the company sent me a 24T instead of a 25T. Later on, the 995 servo had a plastic horn inside the little package that came with it. I put that horn on and it fit perfectly. BUT, when I placed this little plastic horn on the same HiTec servo, it also fit perfectly.
The question is, do I have to hammer and push in order to get the Metal horn on? I don't want to damage the little teeth. If I do get it on by force, how will I get it off if I need to?
Is there a TRICK to doing this?
Thanks in Advance to Anyone who knows.
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Before putting too much force (some force should be OK without causing any damage) I would compare the metal horn to the plastic one and see if they look pretty much the same. It may also pay to add a little lube to the spindle and horn to aid in them fitting together nicely (it's amazing how much a little lube can help when trying to push something in to something that's tight).
Thank You Both!
@Anthony, on the coupler, I bought a 4mm which would be 3/16", no teeth.