[python] Re: no weld python
- From: Jaculus <jaculusbent@xxxxxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Tue, 3 Jun 2008 18:05:45 +0200
Hi all,
I welded my python for several reasons:
- Welding is considerably more common than epoxy (ie. carbon or glasfiber)
there is probably a neighbour, or family member you can ask for help if you
are encountering problems.
- Steel is way cheaper than carbon (about 1 euro a kg for new pieces).
- Steel is adjustable. Just start your anglegrinder when you want to adjust
something, and adjust things to your liking before rewelding.
- Tools for welding plain steel are not that expensive, my electrode welder
(incl. gloves, mask, steelbrush and hamer) and angle grinder were only 100
euro for a new set.
I do think that other materials can be used, but those will probably require
more thinking before starting.
Milan.
2008/6/3, Kevin Bailey <ke-python@xxxxxxxxxxxxxxxxxxxx>:
>
> On Tue, Jun 03, 2008 at 09:38:29AM +0200, Uipko Berghuis wrote:
> > On Mon, Jun 2, 2008 at 8:47 PM, Olaf Johansson <home@xxxxxxxxxxxxxxxxx>
> wrote:
> > >
> > > Someone should mention carbon fibre and epoxi.
> > >
> >
> > Carbon is certainly a no weld option but I think it will cost the same
> > or more as welding. And it is probably also more difficult, anybody
> > experience with both methods?
>
>
> The only cost with composite building is the materials. There's
> no expensive equipment that you may never use again. Carbon
> fiber is expensive, but you could also build it out of fiber
> glass which is almost a tenth the cost. Before saying that fiber
> glass isn't strong, or you have to use more to get the same
> strength, recall that they make airplanes out of it (which is
> where my experience comes from.)
>
> However, I would say that its easier for a beginner to make a
> strong braze or weld than a strong composite joint. The trouble
> is that epoxy is actually pretty bad at bonding and compression
> (relative to metal). What manufacturers have to do is wrap
> things like bottom brackets and steering columns with extra
> layers (compared to, say, the tubes) to make them strong enough.
> For all I know, carbon fiber bikes may use ribbed pieces to get
> them to join better, where with welding, any off-the-shelf
> smooth piece (read: recycled) is preferred.
>
> If someone was intrigued, I'd say give it a try. The cost
> of failure is pretty low.
>
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