Spectacle glass

dal-t
Posts: 654
Joined: Mon Jan 11, 2010 8:06 pm

Re: Spectacle glass

Postby dal-t » Fri Jun 30, 2017 1:36 pm

Kristal Klear!
David L-T

User avatar
Knuckles
Posts: 1262
Joined: Fri Nov 18, 2011 9:15 pm

Re: Spectacle glass

Postby Knuckles » Fri Jun 30, 2017 2:19 pm

I support the above suggestion too. Easy to apply and looks good. Also accepts gloss varnish spray with no issue.

I wouldn't want to risk spraying matt or satin on though.
“He who dares not offend cannot be honest.” Thomas Paine

https://www.sparkshotcustomcreations.com/
Mostly 3D Printed Loco kits etc.

SCC Price list (7/4/22)
https://www.sparkshotcustomcreations.co ... e77d42.pdf

User avatar
MarkS
Posts: 296
Joined: Tue Jul 22, 2008 1:15 am

Re: Spectacle glass

Postby MarkS » Fri Jun 30, 2017 3:04 pm

I have used Kristal Klear, and gloss medium successfully - I have also used a leather punch on clear styrene if the spectacle size is right, with the above or canopy glue to hold the glazing piece in place. http://alexnld.com/product/revolving-leather-canvas-belt-punch-punching-plier-hole-tool-6-tube/
Cheers,

Mark.
"In the end, when all is said and done, more will have been said than done..."

User avatar
steamraiser
Posts: 558
Joined: Thu Dec 31, 2009 4:49 pm

Re: Spectacle glass

Postby steamraiser » Sat Jul 01, 2017 11:00 pm

Ambis sells thin clear acrylic, 0.2mm IIRC.

Gordon A

User avatar
Knuckles
Posts: 1262
Joined: Fri Nov 18, 2011 9:15 pm

Re: Spectacle glass

Postby Knuckles » Sat Jul 01, 2017 11:38 pm

Monty wrote:Just one point regarding Krystal Klear. It says suitable for a gap up to 1/4 inch. The size aperture on my model is a little larger so will it work ok?
Regards.


Possibly. I'm sure the 1/4 is an approximation of a size easy to get a repeatable result. I've found Loading a cocktail stick with a lot on and spinning it around will layer the inside, then reloading and repeating will start to bridge the gap until the white bubble is formed.

Worth a shot for a couple of quid either way.
“He who dares not offend cannot be honest.” Thomas Paine

https://www.sparkshotcustomcreations.com/
Mostly 3D Printed Loco kits etc.

SCC Price list (7/4/22)
https://www.sparkshotcustomcreations.co ... e77d42.pdf

dal-t
Posts: 654
Joined: Mon Jan 11, 2010 8:06 pm

Re: Spectacle glass

Postby dal-t » Sun Jul 02, 2017 7:16 am

The problem with filling larger gaps is you tend to get a bulls-eye effect. Careful use of gravity (i.e. turning the model around as the KK dries) can alleviate this, but it's hard to entirely avoid the impact of surface tension and capillary effect making a form of lens. I suspect that's why Microscale quote the 1/4 inch limit, since as Knuckles says it's actually quite easy to build it up across a wider opening. I did this a while ago for the windows of a Sentinel steam lorry, but found it just didn't look right for the main windscreen, although the 'toplights', which were thinner, were fine. Of course, by the time the opening gets that big it is becoming easier to cut clear plasticard/glass/perspex to fit, and you can still use KK (or Revell canopy glue) to fix it.
David L-T

Enigma
Posts: 533
Joined: Tue Aug 13, 2013 2:49 pm

Re: Spectacle glass

Postby Enigma » Mon Jul 03, 2017 8:57 am

I'm sure I remember someone cutting a slice of clear Perspex rod, polishing it and then sticking it in the hole. Getting the correct diameter could be tricky though unless you have a handy lathe (or a drill held in a vice?). I tried it with some 'clear' sprue from the windows of an American structure kit but it was not a success. The plastic was to soft and wouldn't polish.

User avatar
steve howe
Posts: 911
Joined: Sun Feb 01, 2009 10:16 pm

Re: Spectacle glass

Postby steve howe » Tue Jul 04, 2017 10:38 am

If you get some brass tube of the appropriate diameter and file or turn the end down to a knife-edge, you can punch discs out of clear thin styrene.

Steve

User avatar
jim s-w
Posts: 2186
Joined: Wed Jul 30, 2008 5:56 pm

Re: Spectacle glass

Postby jim s-w » Tue Jul 04, 2017 11:21 am

I just used a hole punch and some clear plastic from a Bachmann box.
Jim Smith-Wright

http://www.p4newstreet.com

Over thinking often leads to under doing!


Return to “Steam Locomotives”

Who is online

Users browsing this forum: ClaudeBot and 0 guests