Re: Career Question
- From: Cliff <Clhuprich@xxxxxxx>
- Date: Sun, 28 Jan 2007 13:21:59 -0500
On 26 Jan 2007 14:30:23 GMT, alphonso <alphamachine-nospam@xxxxxxxxxxxxx> wrote:
Cliff <Clhuprich@xxxxxxx> wrote in
Your specific parts are probably short-run prototype-like in
nature but there's a real need for pipe liners & methods to
maintain water & sewer infrastructure without digging the
whole place up & starting from scratch. Those short bits even
save on the size of holes that must be dug & labor/machines
to lift & install (but the ends cost more & they have more service
There might be a market for larger quantities & longer lengths ..
with **many** customers. But I doubt that saw & thread miling
is the best way to make such.
Not prototype parts. The concept comes from Europe where it has been in
use for more than 20 years.
Here too IIRC.
The rationale is to replace old waste water
lines without having to dig up streets, yards, tunnel under buildings,
etc. by working from inside the sewer system. The boring equipment and
pipe sections need to be able to fit into existing manholes and bores;
hence the 40 inch or 1 meter length.
So I deduced <g>.
The threadmilling proposal is primarily because I don't have a lathe big
enough to swing this particular size.
Perhaps you should not bid.
If the pipe manufacturer can be
persueded to provide 40 inch lengths rather than full joints with bell
ends (which are thrown away) it will reduce our cost of material and
reduce labor because we don't have to saw anything.
Some extruder would probably be more than happy to do so.
There may be a cheaper way produce the parts than cutting and threading
extruded pipe, but the waste water group currently will not accept any
other method or material: if it is PVC, it will be extruded PVC, period.
I wonder why. I can think of a few possibles but ...
Any PVC experts?