On 11/02/2016 00:36, Dave Plowman (News) wrote:
In article ,
wrote:
The original was simply a lump of plastic. Injection moulding, I'd
guess. If a 3D printer can't make the same and as strong, not much
point other than as a toy.

Some can. You used the wrong plastic, as well as copying a flawed design.

I didn't make them. They were made commercially. By a specialist in such
things. Given what they cost, should have been the strongest plastic on
the market.

Just because they are expensive doesn't mean they aren't made cheaply.
You do not get what you pay for if there is no competition.


The design is indeed flawed. But if it gave a few years use in practice
before breaking but much shorter with the printed one it's fair to say it
wasn't as well made.


With FFF in plastic you may have to look at the design and change it to
take into account the weakness in the Z axis. If you can't then you need
to look elsewhere.