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RE: Re: [OM] T-32 Foot crack

Subject: RE: Re: [OM] T-32 Foot crack
From: Scott Gomez <scott@xxxxxxxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 18 Mar 2001 23:47:53 -0800
I can vouch for this stuff, also. Very well loved by scale modelers, where
plastics rule.

---
Scott Gomez

-----Original Message-----
From: John F Wheeler [mailto:wheelej@xxxxxxxxxx]
Sent: Sunday, March 18, 2001 22:52
To: 'olympus@xxxxxxxxxxxxxxx'
Subject: RE: Re: [OM] T-32 Foot crack


Andrew, Vaughan,

I thought I saw a post from Tom Scales detailing the availability of a 
spare part for this foot. I think another post said that the replacement of 
same may be a little sexy (engineering term meaning complex).

Anyway, I have been using an adhesive obtained from Hobbyco in Sydney 
(quite some time ago) which may just fit the bill. It's from a company in 
US called Plastruct, Inc and the front of the label identifies it as a 
'Plastic Weld Cement'.

It's described as a 'Multi-purpose, evaporative formula for bonding 
Plastruct ABS, Styene, Butyrate, Acrylic (Lucite or Plexiglas) to each 
other or in combination'. I've used it for repairing those plastic moulded 
parts on dot matrix and squirty printers that always seem to break at the 
corners etc. It works by capillary action by simply holding the parts 
together and brushing the material along the crack. This forms a 
'continuous, solid weld as strong as surrounding plastic'. I've found it 
quite strong particularly with a twelve-hour curing period.

John.

-----Original Message-----
From:   Vaughan Bromfield [SMTP:vaughan.bromfield@xxxxxxxxxx]
Sent:   Monday, March 19, 2001 12:37 PM
To:     olympus@xxxxxxxxxxxxxxx
Subject:        Re: Re: [OM] T-32 Foot crack

> Andrew Fildes wrote:
>
> > This type of repair is much better as it 'welds' the plastic. Some 
plastic
> > 'glues' are simply liquid solvents that melt the plastic and allow two
> > surfaces to blend. Trouble is, you have to get the correct type for 
each
> > different resin and that can be difficult. If you could identify the 
resin
> > type, applying a very small amount into the crack and then clamping 
should
> > make a strong repair.
>
> Yes, those were my thoughts. Assuming you can get the right type of
> glue, it should be quite effective. In the end, you should get a bond as
> strong as the original plastic.


That's where the argument breaks down... the original plastic broke,
didn't it? A longer term fix might be to reinforce the new foot with
epoxy before installing it.


Vaughan

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