# GB1-Style Thrower Bargraph **URL:** \ **Category:** Proton Packs\ **Created:** [June 18, 2013, 9:13pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692 "2013-06-18T21:13:21Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![ThrowingChicken](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/t/46a35a/32.png) [@ThrowingChicken](https://forum.gbfans.com/u/ThrowingChicken)\ **Post date:** [June 18, 2013, 9:13pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/1 "2013-06-18T21:13:21Z")
So some of you may have seen how the north-eastern boys [identifed the bargraph used on the throwers for the first Ghostbusters movie](http://www.gbfans.com/community/viewtopic.php?f=2&t=33580). Unfortunately at over $1k per bargraph, it’s not exactly something most people can afford or are willing to spend that kind of money on. But since they actually had one in hand we finally got some detailed shots of it so I took it upon myself to see if I could make a reasonably convincing replica on the cheap. I started by thinking about the bargraph as layers, and then traced out those layers in Illustrator to be laser cut out of acrylic. ![image](https://discdn.gbfans.com/original/3X/f/2/f268806e3a4af6ccf662d01bd1a13c356ac65fd2.png) I knew there were going to be black opaque layers and then transparent layers that would either be clear or have a pattern etched into them, so I placed the transparent layers aside and used the opaque layers to build what is essentially the housing, which was then molded and cast. ![image](https://discdn.gbfans.com/original/2X/6/6ec3cca4b9010bb4acabff857b6ee67d29b4eff5.jpeg) The housing has a very thin frame around the outside edge, a smaller frame underneath, silver “teeth” that must have something to do with the leads on the real bargraph, and since the correct 30-segments are hard to come by I went ahead and added a layer that divided out 30 segments. ![image](https://discdn.gbfans.com/original/3X/2/4/24d6c584c7a4343fa692e45dbd61da44556a12c3.jpeg) The teeth were painted silver with a little Rub N Buff on a toothpick. ![image](https://discdn.gbfans.com/original/3X/a/d/adb3599636504e12b44b15ae0f390cbc42623021.jpeg) The first layer of the transparent acrylics. In the future I will have the pattern from the middle piece engraved onto the thicker acrylic to the right. ![image](https://discdn.gbfans.com/original/3X/0/a/0a0d78c7a91ff8ceb15a2d5820f1d1324ee3ff74.jpeg) First layer in place. ![image](https://discdn.gbfans.com/original/3X/3/1/31bc15b2c867b33f0b061e896d7abdae8924ec19.jpeg) ![image](https://discdn.gbfans.com/original/3X/8/3/83ee701a974cd8742c41aed4d01a7163297f670a.jpeg) Then I’ve added the second layer of acrylic, the face cover. The fit is a little tight so I had to sand the edges of the acrylic, I will have them cut slightly smaller in the future so the edges will be clean. ![image](https://discdn.gbfans.com/original/3X/9/3/930dd2e23bc0367ec16fea101f997a4d3ffc77f6.jpeg) ![image](https://discdn.gbfans.com/original/3X/e/3/e31f86522437ce43fde20d463232dfcb39ce1153.jpeg) ![image](https://discdn.gbfans.com/original/3X/5/b/5bef96a797c857394c007c2d5c7ec6ed4c54b631.jpeg) And under the light it is pretty convincing. This is being lit with a 15-segment bargraph. ![image](https://discdn.gbfans.com/original/3X/2/c/2c7c04a55431f68d802e6cf10aa6801fb32bad5c.jpeg) ![image](https://discdn.gbfans.com/original/3X/8/9/89838dc6fffe43ad70f5c1169f9bd6efb0a2813f.jpeg) ![image](https://discdn.gbfans.com/original/3X/e/8/e817fa0a6da337e5c8c5ec224d83241732d10966.jpeg) ![image](https://discdn.gbfans.com/original/3X/0/c/0c9a98e80ac4095071eb6d7e7cec78a93de71a68.jpeg) I’ll try to get a video later. Using a 15-segment bargraph isn’t perfect, it looks okay, but I would imagine the animation would look much smoother using one of the 40-segment bargraphs. ---
**Author:** ![ThrowingChicken](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/t/46a35a/32.png) [@ThrowingChicken](https://forum.gbfans.com/u/ThrowingChicken)\ **Post date:** [June 18, 2013, 9:33pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/2 "2013-06-18T21:33:14Z")
[https://www.youtube.com/watch?v=FVytSiEmjcc](https://www.youtube.com/watch?v=FVytSiEmjcc) ---
**Author:** ![julz](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/j/da6949/32.png) [@julz](https://forum.gbfans.com/u/julz)\ **Post date:** [June 18, 2013, 9:37pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/3 "2013-06-18T21:37:05Z")
I was trying to do one of my own… but i’m throwing my toys out of my cott! I’m blown away by how well it came out! If you start making them id love to buy 2! Is this your interest list 😉 :crunch: ---
**Author:** ![lunchbox739](https://forum.gbfans.com/user_avatar/forum.gbfans.com/lunchbox739/32/6450_2.png) [@lunchbox739](https://forum.gbfans.com/u/lunchbox739)\ **Post date:** [June 18, 2013, 9:39pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/4 "2013-06-18T21:39:30Z")
shit put me down for one too…damn TC that’s incredible dude. You sir are a steely eyed missile man… ---
**Author:** ![travisccook](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/t/b19c9b/32.png) [@travisccook](https://forum.gbfans.com/u/travisccook)\ **Post date:** [June 18, 2013, 10:29pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/5 "2013-06-18T22:29:51Z")
These look incredible. Another interested customer here! ---
**Author:** ![Lundo12](https://forum.gbfans.com/user_avatar/forum.gbfans.com/lundo12/32/6348_2.png) [@Lundo12](https://forum.gbfans.com/u/Lundo12)\ **Post date:** [June 18, 2013, 11:33pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/6 "2013-06-18T23:33:58Z")
Wow that is fantastic! I would certainly want one as well if the intent is to produce these for sale. ---
**Author:** ![jessejames51](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/j/edb3f5/32.png) [@jessejames51](https://forum.gbfans.com/u/jessejames51)\ **Post date:** [June 18, 2013, 11:40pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/7 "2013-06-18T23:40:59Z")
this is wicked! I want one too! ---
**Author:** ![kingpin](https://forum.gbfans.com/user_avatar/forum.gbfans.com/kingpin/32/187259_2.png) [@kingpin](https://forum.gbfans.com/u/kingpin)\ **Post date:** [June 19, 2013, 12:16am UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/8 "2013-06-19T00:16:06Z")
Holy crap… TC, your skill just continues to floor me, excellent work on the pieces… you’ve brought it as close to perfection as you can get without having the real thing. Consider myself another interested party if you decided to mass produce these. 🙂 ---
**Author:** ![protokev](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/p/aeb1de/32.png) [@protokev](https://forum.gbfans.com/u/protokev)\ **Post date:** [June 19, 2013, 2:25am UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/9 "2013-06-19T02:25:43Z")
Amazing work! Hope you make more! ---
**Author:** ![jackdoud](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/j/6a8cbe/32.png) [@jackdoud](https://forum.gbfans.com/u/jackdoud)\ **Post date:** [June 19, 2013, 2:35am UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/10 "2013-06-19T02:35:35Z")
This is not the place for an interest list. If TC decides to produce them he’ll post about it in the for sale section. Please don’t ask about it here. ---
**Author:** ![kevinj319](https://forum.gbfans.com/user_avatar/forum.gbfans.com/kevinj319/32/187120_2.png) [@kevinj319](https://forum.gbfans.com/u/kevinj319)\ **Post date:** [June 19, 2013, 3:18am UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/11 "2013-06-19T03:18:46Z")
This looks amazing! I have been thinking about a replica like this for quite a while now and the ways it could be put together, but you were able to come up with a working idea it and make it a reality. I am very impressed with this. As for the way the 15-segment lights look… it seems like the light is bleeding a lot, creating a bit of undesirable glowing effect. I wonder if there is a way to better isolate the individual LEDs so that light from a lit LED does not bleed into the portion of the bargraph that should be unlit. ---
**Author:** ![drjameshouse](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/d/6a8cbe/32.png) [@drjameshouse](https://forum.gbfans.com/u/drjameshouse)\ **Post date:** [June 19, 2013, 3:53am UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/12 "2013-06-19T03:53:31Z")
> [@kevinj319](#): > > As for the way the 15-segment lights look… it seems like the light is bleeding a lot, creating a bit of undesirable glowing effect. I wonder if there is a way to better isolate the individual LEDs so that light from a lit LED does not bleed into the portion of the bargraph that should be unlit. My question would be is this bleeding or is the lights themselves have a “fade” effect that is making it look like bleeding? ---
**Author:** ![Wiz-GB008](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/w/6a8cbe/32.png) [@Wiz-GB008](https://forum.gbfans.com/u/Wiz-GB008)\ **Post date:** [June 19, 2013, 12:59pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/13 "2013-06-19T12:59:23Z")
Very nice! This is a better looking version of what I’m working on for my thrower. ---
**Author:** ![ChapterMasterTuShan](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/c/6bbea6/32.png) [@ChapterMasterTuShan](https://forum.gbfans.com/u/ChapterMasterTuShan)\ **Post date:** [June 19, 2013, 1:54pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/14 "2013-06-19T13:54:57Z")
> [@drjameshouse](#): > > > [@kevinj319](#): > > > > As for the way the 15-segment lights look… it seems like the light is bleeding a lot, creating a bit of undesirable glowing effect. I wonder if there is a way to better isolate the individual LEDs so that light from a lit LED does not bleed into the portion of the bargraph that should be unlit. > > My question would be is this bleeding or is the lights themselves have a “fade” effect that is making it look like bleeding? It would be light bleed; LEDs in and of themselves don’t fade perceptively. ---
**Author:** ![ThrowingChicken](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/t/46a35a/32.png) [@ThrowingChicken](https://forum.gbfans.com/u/ThrowingChicken)\ **Post date:** [June 19, 2013, 3:42pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/15 "2013-06-19T15:42:13Z")
> [@kevinj319](#): > > As for the way the 15-segment lights look… it seems like the light is bleeding a lot, creating a bit of undesirable glowing effect. I wonder if there is a way to better isolate the individual LEDs so that light from a lit LED does not bleed into the portion of the bargraph that should be unlit. When I look at the LEDs without the bargraph replica in place, they are bleeding into each other. So I would imagine it could be solved by placing a little bit of black electrical tape between each LED then making sure the LEDs are bumped right up against the back of the replica. I’m just holding these all together by hand, nothing fancy. ---
**Author:** ![Cyberkorr](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/c/3e96dc/32.png) [@Cyberkorr](https://forum.gbfans.com/u/Cyberkorr)\ **Post date:** [June 19, 2013, 5:47pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/16 "2013-06-19T17:47:54Z")
Simply amazing work TC. Your skills are most definately second to none. This would be an amazing piece for any pack builder’s thrower. Congratulations on a job well done! 🆒 ---
**Author:** ![aj-quick](https://forum.gbfans.com/user_avatar/forum.gbfans.com/aj-quick/32/187072_2.png) [@aj-quick](https://forum.gbfans.com/u/aj-quick)\ **Post date:** [June 19, 2013, 9:30pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/17 "2013-06-19T21:30:49Z")
Are you a wizard? ---
**Author:** ![abaka](https://forum.gbfans.com/letter_avatar_proxy/v4/letter/a/f04885/32.png) [@abaka](https://forum.gbfans.com/u/abaka)\ **Post date:** [June 20, 2013, 9:51am UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/18 "2013-06-20T09:51:23Z")
I’m amazed by this, I hope they do go on sale because it will add so much to alot of builds and I suspect the majority of people won’t be able to afford or be willing to splash out on the original item. ---
**Author:** ![kevinj319](https://forum.gbfans.com/user_avatar/forum.gbfans.com/kevinj319/32/187120_2.png) [@kevinj319](https://forum.gbfans.com/u/kevinj319)\ **Post date:** [June 20, 2013, 2:28pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/19 "2013-06-20T14:28:48Z")
> [@ThrowingChicken](#): > > > [@kevinj319](#): > > > > As for the way the 15-segment lights look… it seems like the light is bleeding a lot, creating a bit of undesirable glowing effect. I wonder if there is a way to better isolate the individual LEDs so that light from a lit LED does not bleed into the portion of the bargraph that should be unlit. > > When I look at the LEDs without the bargraph replica in place, they are bleeding into each other. So I would imagine it could be solved by placing a little bit of black electrical tape between each LED then making sure the LEDs are bumped right up against the back of the replica. I’m just holding these all together by hand, nothing fancy. Thanks for the insight, TC. I’m looking at the LED’s in my light kit and electrical tape is exactly what I was thinking as well. ---
**Author:** ![spongeface](https://forum.gbfans.com/user_avatar/forum.gbfans.com/spongeface/32/185512_2.png) [@spongeface](https://forum.gbfans.com/u/spongeface)\ **Post date:** [June 20, 2013, 3:12pm UTC](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692/20 "2013-06-20T15:12:47Z")
That is amazing! I am a sparky, so the mechanical building is all black magic to me. Would you mind giving details somewhere about how you go about getting something “molded and cast”? Maybe a separate design/build thread or pointer to similar info would be greatly appreciated! Have you thought of using lenticular material instead of patterned acrylic? In a cover for my bargraph I am using 75 lpi, 18 mil PET and it gives a look very close to the striations that are visible in the actual bargraph photos. [Next page](https://forum.gbfans.com/t/gb1-style-thrower-bargraph/11692.md?page=2)