Home
Forums
New posts
Search forums
What's new
New posts
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Account Upgrades | Donate to Support the Forum!
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Home
Forums
Classifieds
Request a part, job, or quote from members
Light bulb master copy for mould
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Craig" data-source="post: 1414" data-attributes="member: 66"><p>Hi Peter, and thank you for the reply. Yes, that project is mine, it's a solid resin lightbulb (no glass) but I did manage to keep the filament inside and add the anchor hook.</p><p></p><p>Because of the imperfections of the one I made, I wish to make a better more perfect copy of it including the anchor bolt. To make a copy, I will make a mould out of silicon from the Smooth-On product line. Yes, it will have to have a small line cut on 1 side for the removal of the piece not 2 separate pieces. The silicon is very flexible and one line will allow you to "birth" the object out the small opening = only 1 line to deal with. Yes, this probably would leave some noticeable line down the side - which I figure could be easily removed by putting the anchor bolt end into a drill or lathe and wet sanding it down and thus polishing it too at the same time.</p><p></p><p>Bulb threads aren't a concern cuz the silicon will not get caught up on them. Usually from what I've seen, it is the objects that have the severe undercuts = cause a lot of problems when demoulding. </p><p></p><p><em>"So even if you had an awesome finish for 99% of the bulb surface, you will have to deal with that line going around the bulb. So then... ? maybe finish it somehow, sand & polish to blend? But that kind of defeats the point of a shiny 1-step mold."</em> </p><p></p><p>Please take my word for it - these light bulbs are very difficult to make, and even more to make it near perfect. I nearly gave up the project after months of working on it. So, believe me when I say that pouring the epoxy into a mould and pulling it out of there with one small line down the side and then finishing it by drill, drill press, or lathe with 800, 1200, 1500, 3000 grit paper then polish - is way faster and way better way of doing it. If I put it in say a drill press - it would take less than 5 minutes to go up the grits and to polish.</p><p></p><p>Yes, making a mold of an actual light bulb would be easier but wouldn't have the anchor bolt in it and it is hard to get the black glass insulator off with out damaging the aluminum or pot metal.</p><p></p><p>Volume, maybe make up to 9 or 10 moulds or molds....</p></blockquote><p></p>
[QUOTE="Craig, post: 1414, member: 66"] Hi Peter, and thank you for the reply. Yes, that project is mine, it's a solid resin lightbulb (no glass) but I did manage to keep the filament inside and add the anchor hook. Because of the imperfections of the one I made, I wish to make a better more perfect copy of it including the anchor bolt. To make a copy, I will make a mould out of silicon from the Smooth-On product line. Yes, it will have to have a small line cut on 1 side for the removal of the piece not 2 separate pieces. The silicon is very flexible and one line will allow you to "birth" the object out the small opening = only 1 line to deal with. Yes, this probably would leave some noticeable line down the side - which I figure could be easily removed by putting the anchor bolt end into a drill or lathe and wet sanding it down and thus polishing it too at the same time. Bulb threads aren't a concern cuz the silicon will not get caught up on them. Usually from what I've seen, it is the objects that have the severe undercuts = cause a lot of problems when demoulding. [I]"So even if you had an awesome finish for 99% of the bulb surface, you will have to deal with that line going around the bulb. So then... ? maybe finish it somehow, sand & polish to blend? But that kind of defeats the point of a shiny 1-step mold."[/I] Please take my word for it - these light bulbs are very difficult to make, and even more to make it near perfect. I nearly gave up the project after months of working on it. So, believe me when I say that pouring the epoxy into a mould and pulling it out of there with one small line down the side and then finishing it by drill, drill press, or lathe with 800, 1200, 1500, 3000 grit paper then polish - is way faster and way better way of doing it. If I put it in say a drill press - it would take less than 5 minutes to go up the grits and to polish. Yes, making a mold of an actual light bulb would be easier but wouldn't have the anchor bolt in it and it is hard to get the black glass insulator off with out damaging the aluminum or pot metal. Volume, maybe make up to 9 or 10 moulds or molds.... [/QUOTE]
Insert quotes…
Name
Verification
Post reply
Home
Forums
Classifieds
Request a part, job, or quote from members
Light bulb master copy for mould
Top