tl;dr: grease good?
Ever since I really got around doing VEX, I always tried to put Teflon washer everywhere something would move:
I’d put a Teflon washer between aluminum c-channels,
a screwhead and a free-spinning gear,
a screwhead and an aluminum c-channel,
a screwhead and a bearing block,
and a bearing block and a spacer.
The problem is that I only really got around doing VEX last year, and even then, I only got around becoming a mediocre VEX person last month or so.
The sheer price of Teflon washer only dawned on me about two months ago.
I wouldn’t care about the cost of the parts that go in my robots if, for one, our robotics program was funded well, or for another, my team wasn’t trying to buy our own parts:
sadly, both aren’t the case, and I really do have to care about the cost of stuff that we buy.
One perk of being a mediocre VEX person is that I am aware of greases’ existence.
Greases aren’t as expensive as putting Teflon washers in every pivot, and given that grease layers tend to be thinner than a Teflon washer, using them would also save space.
I’ve been thinking about buying grease, and one of the three things that are stopping me from buying them is the lack of knowledge as to which one has less friction:
greased metal-on-metal, or dry metal-on-Teflon-on-metal.
I’d love to experiment with this myself and find out.
Unfortunately, the other two things that stop me from buying a bottle of grease are their cost and my team being almost broke.
I’ll have to really know if they are as effective, or possibly more effective, compared to sticking in a Teflon washer, before I risk becoming that guy who wasted precious money on stuff that doesn’t even work.
This is where you come in.
Would you say that the effectiveness of grease lubrication and the relatively cheap per-joint cost of greases outweigh the cost of initial investment for a bottle of grease? Does the friction-reduction performance of lubricated metal-to-metal support, or undermine, the argument for grease?
Thanks for your time.