Daverw
Well-Known Member
I’m looking for a print file for 8mm anchor chain gypsy, currently searching web but not sure where to actually look, hopefully there are some 3D printing experts on here
I’m not looking to drive the chain but just have it as a free running chain pulley,As a project, make the pattern in wax and cast in bronze via lost wax method, A plastic chain gypsy is going to last about 10 meters of chain if you are lucky. I've just bought a new gypsy for my Lofrans Cayman for £200.00.
Then is there any need for the chain link molding, or is it just a grooved pulley? In the latter case, it could be turned on a lathe in 15 minutes. Likewise, the 3D file would be simpler.I’m not looking to drive the chain but just have it as a free running chain pulley,
They are just shipping their first batch, I’ve spoken to them and they have a waiting list until probably the end of this year, cost is approx £250,Don’t know if TEVdesign would sell you just the gypsy?
I did think or hard rubber but thought that it needs to index both upcoming chain and tail end at the same ratehttps://www.thingiverse.com/thing:7283777
it says work in progress though.
If you want to make the double gypsy for the chain distribution mechanism linked above, have a try with hard rubber rollers of trailers for motorboats: take a wide one, put a round separator in the middle and add some indents (that s what I am doing anyway, seems to work).
People are very quick in claiming ideas as their own original ones, for the sake of trying and be fair in the internet jungle, the original idea came a few years earlier by someone else who simply let others know about this method he had found (yes internet has chronology).The idea they have looks really good,

IIRC copies for personal use are allowed by most intellectual property law systems anywayI will not feel so bad trying to make a copy then