Search found 1451 matches

by falls
Tue Nov 10, 2009 2:41 am
Forum: Yard Sale (non commercial)
Topic: spring clamps for glueing edges to base material
Replies: 7
Views: 3249

ok. i am in australia, i thought the high freight was only for overseas shipping. $4 for 22 clamps beats anything I can find in Australia!
by falls
Mon Nov 09, 2009 12:16 pm
Forum: Yard Sale (non commercial)
Topic: spring clamps for glueing edges to base material
Replies: 7
Views: 3249

spring clamps for glueing edges to base material

Just came across this on ebay. Ending pretty soon, but if anyone needs small clamps there are 120 for about $15.

Spring clamps[/url]
by falls
Mon Nov 02, 2009 10:50 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: hydraulic ski press
Replies: 11
Views: 7045

thanks i bought a router and jig saw last weekend and will order some ski materials this week. will post and let you know how things go. with pneumatic, you could go beyond that 90degree mark and still get pressure, if you built it right, not that you'd want to or ever need to, unless you were build...
by falls
Sat Oct 31, 2009 2:38 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: hydraulic ski press
Replies: 11
Views: 7045

I think you are right Nate. I talked to my Dad and he said that over linear slopes or flat areas the force would be even, but the force around a curve is going to be variable. If you had a ski tip that made up 1/4 of a circle the pressing force at its tip would I think actually be zero and it would ...
by falls
Fri Oct 30, 2009 11:26 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: hydraulic ski press
Replies: 11
Views: 7045

Does the rubber act like a miniature fire hose in this situation and absorb error in the top mould? If I made the top and bottom moulds exactly meet then used a 20mm thickness of rubber wouldn't it compress to 18mm at the tip and 8mm at the centre (given 2mm ski tip and 12mm core centre thickness) a...
by falls
Fri Oct 30, 2009 11:16 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: hydraulic ski press
Replies: 11
Views: 7045

Thanks for the tips. Sounding a bit difficult without a margin for error
by falls
Fri Oct 30, 2009 5:57 am
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: hydraulic ski press
Replies: 11
Views: 7045

Sorry to dredge an old thread. With this hydraulic pressing method people are saying the top and bottom moulds have to be perfect. The bottom mould I understand is like any other bottom mould. Should the top mould match the bottom mould exactly or should it be contoured to the predicted top profile ...
by falls
Wed Oct 28, 2009 9:01 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Using aluminium hydraulic press as ski press?
Replies: 4
Views: 1540

My main query in using a top and bottom mould and rubber in between is whether the moulds should be exactly complimentary to each other ie. fit exactly together. My amateurish thought process suggests that once the ski materials are laid up on the bottom mould that the top mould would then not exact...
by falls
Wed Oct 28, 2009 8:56 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Using aluminium hydraulic press as ski press?
Replies: 4
Views: 1540

Thanks for the tip. I just tried to add the links to those sections so anyone in the future who comes across this thread can be directed, but I haven't posted enough to add links, and the forum ate my post reply.
by falls
Tue Oct 27, 2009 5:24 pm
Forum: Equipment and Tools (e.g., ski press, core profiler, etc)
Topic: Using aluminium hydraulic press as ski press?
Replies: 4
Views: 1540

Using aluminium hydraulic press as ski press?

First time post! I have access to an indutrial size hydraulic press that is used for aluminium pressing. It is capable of over 100 bar pressure, but can be lowered without hydraulic force being added. The weight of the top part of the press I have been told is about 30, 000kg (30 tonnes, 66000 pound...