WIP - Scratch Built RF

This is BEAUTIFUL. I have the WoF templates and hed some ideas in my head for how I wanted to do it, but this really helps me visualize teh steps involved.

THANK YOU.
 
I have found a way to make it not have the large bubble in the back. Seeing that the back will just be glued to the clear part, I do not need the back of the lens. I still have the little bubbles. Those will be until I build a degassing chamber, which is not going to happen soon.

RFPic29.jpg


RFPic30.jpg
 
Have you tried shaking the mold while the resin is inside of it, to get air bubbles to the top and out of it? Or has this been suggested yet, and I'm just very slow on the draw...?

I guess the other problem with that is how to make the mold vibrate to achieve this...?
 
Good idea but it will not work. The resin sets in about 2 min. The best way is to be careful when mixing or put in a degassing chamber. Or cheat! Go to ebay or a flea market and look for a Polaroid SX-70 and get the lens from it. That is what I did.
 
i actually had surprisingly good luck with the resin from michaels. really clear, and very little bubble action.

and now if i just win that sx-70 auction :)
 
Good idea but it will not work. The resin sets in about 2 min. The best way is to be careful when mixing or put in a degassing chamber. Or cheat! Go to ebay or a flea market and look for a Polaroid SX-70 and get the lens from it. That is what I did.

I live in the middle of Michigan... you'd expect there to be more flea markets, but there aren't! :lol: At least, not any I've heard of...
 
I found a different way to mix the resin and get a better result. I also have one kit ready if anybody would like it.

RFPic31.jpg
 
Hey Asok, really nice job on the hollow RFs! I forgot you had this thread on making hollow RFs coz I am doing the exact same thing. I also have the lens from an old non-functional SX-70 camera that I bought for only $10 dollars. I just hope mine turns out as good as yours!(y);)
 
If I can make this, just about anybody can. I am like you and did not like the RF that are out there. I just cast mine so when I break it, I just cast a new one. $10 for a SX-70 lens, WOW! Mine cost me $30 each! Great find. Also, this is my 3rd try at making a RF. So, if it takes a few times, do not worry about it.
 
If I can make this, just about anybody can. I am like you and did not like the RF that are out there. I just cast mine so when I break it, I just cast a new one. $10 for a SX-70 lens, WOW! Mine cost me $30 each! Great find. Also, this is my 3rd try at making a RF. So, if it takes a few times, do not worry about it.

Yeah, I know what you mean about the replacing part! Yeah, I guess I got lucky on that SX-70 lens. Third try hmmm....looking good so far dude! Can't wait to see the finished product!
 
Have you tried a pressure pot? with a pressure gauge.
The kind that you use a air compressor with,not the stove top kind. I use one everyday at the Dental Lab where i work. The water can be room temp.
We use it to take out the bubbles in the dental acrylic when making small dentures or partials.

It may eliminate your bubbles completely.
This is one i found ebay.
pressurepotoo4.jpg

pressurepotoo4.869800285c.jpg
 
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how much does a little pot like that cost, and how big a compressor do you need?

yeah, i could google, but i don't even know enough about the tech to know if what i am reading makes sense :)
 
Naah, I just cannot figure it out. Please tell me which is which? Just kidding, that is just great. Just like clear part of glass. Or did you just drop some water on your mold and dropped it to a freezer?
Sweet work there!
-Ville
 
Asok, these look great, I am looking for an RF to house my circuit too, are you going to supply them ready to fit the boards? I am ready for one anytime!

Cheers Rob.
 
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