Introduction: Mod Your Green Lantern Movie Ring and Make It Glow!


When the Green Lantern movie came out earlier this year Toys R Us started selling a decent looking replica ring for only $10- here's how to make the ring look a bit more heroic by installing a LED and making it more accurate to the movie ring. It's a fair bit of work but for GL fans it's worth the effort!


Step 1: Tools and Materials


This instructable is a further development of my previous Green Lantern ring tutorial seen here-
https://www.instructables.com/id/How-to-make-a-Green-Lantern-ring--including-a-glow/

The wax carving and resin casting are the same process so I won't repeat them here. There is some very basic soldering involved and some Dremel work but it's pretty straight forward. Be sure to click on the "i" symbol to see the high res images.

So here's what you need to modify your ring:

Dremel tool with various burrs
Soldering iron
Jewler's wax- http://www.ottofrei.com/store/product.php?productid=1077&cat=1868&page=1
Silicone RTV molding compound- http://www.alumilite.com/ProdDetail.cfm?Category=Silicone%20Rubber&Name=High%20Strength%203
Casting resin- http://www.alumilite.com/ProdDetail.cfm?Category=Casting%20Resins&Name=Alumilite%20Regular
Sharpie pen
Kapton tape (but just about any thin insulating tape will work)- http://www.sparkfun.com/products/10687
Red Scotchbrite pad
Lily Pad green LED- http://www.sparkfun.com/products/10046
CR1220 watch battery- available at jewelry stores or online
K&S 3/8" OD x .016" wall aluminum tube- http://www.hobbylinc.com/htm/k+s/k+s9409.htm
Transparent green #2092 Acrylic sheet 1/8" thick- http://www.delviesplastics.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=DPI&Category_Code=Transparent_Cast_Acrylic_Sheet
5 minute epoxy
Hot glue gun
Needle nose pliers
Small flat bladed screwdriver
Small piece of solid wire (can be copper or lead clipped off a resistor or other similar electrical component)

Step 2: Take Apart the Ring and Start Modding

The first thing that needs to be done is to take apart the Toys R Us ring. This is done by taking a small flat bladed screwdriver and gently prying out the center gem- see the diagram. There are two small tabs that hold it in place. Once that is removed you will see a rivet that holds the top of the ring in place. The rivet can be drilled out or removed using a Dremel tool. Now the top green plastic piece will come right off.

Now you will notice a recessed area in the lower ring piece that is approximately 14mm in diameter. This will need to be bored out all the way through to the bottom of the ring. Be careful to not remove too much material- you only want to increase the depth of the hole, not increase its diameter.

The hole in the top green plastic section of the ring needs to be enlarged so a 3/8" tube can be epoxied in. The underside of this piece also needs to be shortened by a small amount to allow room for the LED insert.

I made a new center gem by cutting a piece of transparent green acrylic scrap and then shaped it and polished it with a Dremel and then epoxied it into a small section of 3/8" diameter aluminum tubing that was cut using the Dremel with a cut off wheel. I carved the back side of the acrylic gem with a small ball burr to give it a more crystal like effect. The aluminum tube/gem were then epoxied into the top part of the ring.

Step 3: Make the LED Insert

The first thing to do is solder a wire to the positive side of the Lily Pad LED board and bend it over the side so it will make contact with the side of the watch battery. You want to leave this a bit long so it will extend just beyond the bottom of the battery so you can adjust it later. Fill in the hole on the negative side of the LED board. You want a small dome to appear on the underside of the board- this will make sure it comes in contact with the top of the battery.

Now you need to make a holder for the LED and watch battery. You could carve it from plastic sheet or rod but since I wanted to make more than one I elected to carve a wax pattern and then cast duplicates in a rubber mold. The process for this is identical to how I cast my other resin Green Lantern rings so definitely read through that instructable. One tip I will make is that thin castings take longer to cure and can be more difficult to cast than thick castings. To get good quality castings I first heat the mold in a microwave for one minute on high and then I mix the resin for thirty seconds before pouring it into the mold. Once you have poured the resin let it sit in the mold for ten minutes before removing the casting from the mold. Using this method I get near perfect castings every time.

I stared by cutting a round disc approximately 14mm in diameter and checked the fit of that with the large hole in my ring. Then I carved an opening for the Lily Pad LED board, allowing a bit of room for the contact wire. The holder is designed so the watch battery will snap into place so it takes a bit of trial and error to get a good fit- I made a small ledge on opposite sides of the holder that help hold the battery in place. You really want to make the battery holder as thin as possible- there is very little room to work with in this ring so keeping the height down is important.

There are two notches in the side of the casting- the larger one is so you can slide a small flat bladed screwdriver in the holder to remove the battery and the other small notch is so you can make adjustments to the wire that runs along the side of the battery. If you bend the wire inward it will put a bit of tension on the battery to help hold it in place and make sure you're getting a good contact.

The LED board is held in place in the holder using a small piece of Kapton tape. This also covers the positive contact on the underside of the board so you don't short out the battery. You can use any kind of thin tape you like- thin mylar packing tape would also probably work just fine.

For those of you not wanting to go to all the trouble of making the LED insert they are now available from my friend on his Facebook page here- https://www.facebook.com/batjeepster.rings?sk=wall&filter=2#!/photo.php?fbid=10150256885538462&set=a.495535658461.270748.289792643461&type=1&theater

Step 4: Now Mod the Lower Part of the Ring


The pattern on the lower half of the Toys R Us ring is a bit over done. To make it look more like the movie ring I first removed the black paint on the sides of the ring by soaking the ring in acetone. Next I filed down the sides of the ring and reshaped it using a Dremel tool. I smoothed out the pattern a bit and re cut some of the gouges in the side of the ring.

When I was happy with the texture I used a Sharpie pen to blacken the dented areas and then rubbed the surface of the ring with a red scotchbrite pad to dull it down a bit. Modding the lower half of the ring like this is totally optional and it's a fair bit of work but I think it looks better.

Step 5: Final Assembly


Press in the LED holder assembly into the lower half of the ring. The best way I've found to do this is the set it LED side down on a flat surface, position the lower ring section over it and then gently press down. You want it to be flush with the inside bottom of the ring. Now the top of the ring can be glued into place with a couple of tiny dabs of hot glue using a glue gun. You don't want to use a lot as you want to be able to remove the top of the ring should you ever have to replace the LED.

Note that there isn't a switch (and there really isn't room for one- I tried) - if the battery is in then the ring is on. By bending the contact wire I have been able to get the ring to turn on when I'm wearing it but it's a lot of trial and error and not terribly reliable. As for run time I have run one of these for 36 hours straight- at that point there was noticeable dimming of the LED. In a dark room this thing is very bright.

That's it- you're done! Now put your ring on, take your Green Lantern oath and join the Corps!

Comments

author
stidham32 made it! (author)2017-02-15

So Honus I have one of the Toys R US ring in this tutorial (which is fantastic by the way!). However I am in the middle of a GL Cosplay build. If I mailed you the ring could you get it done and back to me by March 20?

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Cooloop made it! (author)2015-03-01

Could you actually make a tutorial on how to carve from plastic sheet or rod? Wax and resin definitely isn't very practical for most people and the tutorial doesn't really elaborate on sheet/rod crafting.

author
Zappzipper made it! (author)2014-10-28

GENIOUS

author
Zappzipper made it! (author)2014-10-28

GENIOUS

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es2 made it! (author)2014-05-20

Hello I am a huge Dc fan as I've read below from about a year ago you where not moding rings due to heavy workload. I completely understand but hope you might have the opportunity to do one. I can by the ring separate. And send it to you. However I do understand the amount of tasks and difficulty you must take on with your own projects if you are not able to. thank you

author
Honus made it! (author)Honus2014-05-20

Unfortunately I just can't take on any more work right now- hope you understand!

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andrewthegreat98 made it! (author)2014-05-17

nice .though I prefer to make one out of cardboard

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Amere Johnson--Myles made it! (author)2014-03-07

... Well, at least you can make design by yourself and make a ring prompt by you.

author
eat it sucker made it! (author)2013-10-22

Tel me how you made that

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Honus made it! (author)Honus2013-10-22

Have you read the instructable?

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IronWill made it! (author)2013-03-26

This looks remarking similar to the following ring.
http://www.amazon.com/Green-Lantern-Movie-Exclusive-Keychain/dp/B0052WWSJM/ref=pd_sbs_a_3

Ring looks truly awesome, well done.

author
Honus made it! (author)Honus2013-03-26

That ring looks the same because it is the same ring. :) The instructable is about how to modify that ring and make it light up.

author
jpatterson20 made it! (author)2013-03-09

Honus, this is awesome!!! I have a ring!!! Can you please mod it for me? How much will it be?

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Honus made it! (author)Honus2013-03-09

Sorry but I'm not modding rings for anyone- the mold I made for the inserts finally self destructed and I'm already backlogged with too many other projects!

author
mr.cardboard made it! (author)2012-11-23

can I buy one plz!!!!!!!!!!!!!!!! I can afford anywhere from $20.00-$30.00
You can message me for where to send it if u have time. Plz!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

author
jcarret made it! (author)2012-03-27

Thanks so much! I am a huge green lanern fan. I really dont have the resources to complete the tutorial. Is it posibile that I can send you my ring.

author
Honus made it! (author)Honus2012-03-27

Sorry but I'm not taking on any additional work right now- I have a huge backlog of work to catch up on!

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jcarret made it! (author)jcarret2012-03-29

Thank you anyway. I will try to complete it on my own. Again I want to thank you for make this tutorial.

author
rocketsurgery made it! (author)2011-09-18

Brilliant! Great 'ible!!!

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Honus made it! (author)Honus2011-09-18

Thanks!

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GaryB101 made it! (author)2011-08-14

And how much are you selling them for...Just say'n..

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Honus made it! (author)Honus2011-08-14

I'm not selling the rings. The LED inserts are available from Batjeepster- there's a link on the insert page (Step 3.)

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GaryB101 made it! (author)GaryB1012011-08-15

Oh, I figured as such. It was really just a way of complementing the ring. They are very cool and just a bit beyond my capabilities. You could sell them, I bet. (And I'd buy one for my son....and one for me.)

author
Honus made it! (author)Honus2011-08-15

I'm glad you like it! The reason I said I'm not selling them is that I don't have the rings on hand- they are getting hard to find too. If you can get a ring I'll be happy to mod it for you- just message me.

My oldest son wants one too. :)

author
GaryB101 made it! (author)GaryB1012011-08-24

That's an incredibly sweet offer. Thank you. I might just have to take you up on it! I'll let you know.

Best.
Gary

author
Wolfdagon made it! (author)2011-08-21

After you cut and sanded the center gem how did you polish it?

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Honus made it! (author)Honus2011-08-21

I used a tripoli polishing compound and a small polishing wheel. Most any plastic polishing compound should work.

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Wolfdagon made it! (author)Wolfdagon2011-08-21

Ok. Thanks.

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sunshiine made it! (author)2011-08-09

Love the ring!

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Honus made it! (author)Honus2011-08-09

Thanks!

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Chirpoff made it! (author)2011-08-08

That looks so awesome, Honus! BTW, you're my soul subscribee! :D Nice to see another great 'ible!

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Honus made it! (author)Honus2011-08-08

Thanks so much! I've got some really good stuff in the works too... :)

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Chirpoff made it! (author)Chirpoff2011-08-08

I'm looking forward to it! :D

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Bio: I'm a former bicycle industry designer turned professional jeweler. I like working with my hands and am happiest when I'm in the shop ... More »
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