CraftWEB Hot Glass Talk  

Go Back   CraftWEB Hot Glass Talk > Hot Glass > General Hot Glass Discussion

Reply
 
Thread Tools Display Modes
  #1  
Old 06-20-2020, 05:59 AM
Sean Jones Sean Jones is offline
Registered User
 
Join Date: Jan 2016
Location: Staffordshire U.K.
Posts: 24
Sean Jones is on a distinguished road
Optic mould angle

Can anyone tell me the best internal angle for optic moulds. Iím going the weld some up from square steel bar.
Reply With Quote
  #2  
Old 06-20-2020, 09:43 AM
Eric Trulson Eric Trulson is offline
Young Turk
 
Join Date: Sep 2014
Location: Boston
Posts: 135
Eric Trulson is on a distinguished road
Kind of depends on how big it is and what you're doing with the piece after it comes out of the mold (which also determines whether you leave the bottom open or closed).

I think most optic molds tend to have around 15-25 degrees of included angle? (so the angle between each wall and the vertical centerline axis would be half that). I wouldn't go much lower than 5 deg, just so you have enough draft to get your glass out of it easily, nor much larger than 30 deg, or your piece will start getting mighty squat. That's from memory, so if someone measures their optic mold and I'm way off, please do holler about it and keep me honest.

Steel stock and welding gas are both cheap though, might be worth just quickly tacking up 2-3 different shapes and seeing what you like, then breaking down the ones you don't want to use back into scrap. Good on you for making your own tooling & molds, it's an excellent skill to develop.
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 12:43 PM.


All published comments within these message boards are the opinions of its contributor and does not represent
the opinion(s) of the owner(s) of this website. Please see the Terms of Use file for more details.

Books to Help Artists Avoid Online Scams: Top 10 Email Scams | Social Media Scams

Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
© CraftWEB.com. Opportunity Network. 2008. All Rights Reserved.