Tuesday, October 29, 2013

My new maker blog after the demise of Posterous

I wonder what it was that drew me to Posterous in the first place...  Whatever it was, I certainly regret it because I can't remember where I had exported all of my past blogging data.  I used Posterous for my infrequent progress reports on various projects, like 3D printing and my racing simulator.   And now it's all gone!  :(  I guess it's time to try out Blogger and hope that it doesn't get axed like some other Google products.

The racing simulator was a pretty big project, but I finally have it at a point where it's completely functional.  It might not look polished, but it does work.  I'm looking forward to getting some seat time in it with the kids over the winter.  Summer is just too hot to be sitting in a garage playing video games.  I should post pictures later... maybe when I figure out how to make posts from my phone.  I'm too lazy to do the photo transfer thing.  ;)

I have decided to start a new project!  My kids had some friends over last week, and we only had two Lazer Tag guns.  I never bought more because the new Lazer Tag set (recently acquired by Nerf, I think?) is best experienced when you pair it with an iOS device.  I don't know if it's required or not, but I don't have enough spare devices for the number of players I'd like to support, and the gun seems a little big.  Our current Lazer Tag guns are also pretty unwieldy.  So I decided that it would be worth creating some kind of open source Lazer Tag system.

Then I started to google a bit and came across Skirmos.  It is a very recent project -- their Facebook page was created back in November 2012, and a post in September 2013 mentions that they are starting a Kickstarter campaign.  I could wait to see what they are going to be offering for their pledge levels and just buy their system, or I could try to come up with my own.  I've decided for the latter, though I will also keep up with them on FB and KS over the coming weeks.

My first issue with Skirmos (which is arguably one of their attractive characteristics for most people) is that you seem to strap it onto any gun you already have.  This is great for a lot of reasons, but I'm looking for something that's easier for 2nd graders to run around with and not bang large guns around or outside of the house.  We only have those large Nerf rifles and I know it just won't work.

I'm also looking for a semi-realistic experience for the guns.  What I love about our current Lazer Tag guns is that you feel a kick when you pull the trigger, and to reload you have to "eject" the magazine.  Totally awesome features IMO.  I want to recreate this experience.

I started by taking measurements of my hand with my calipers.  Given the ideal (or what I recall is the ideal) grip angle of 110deg, I made a quick sketch of a gun frame and printed it on the Replicator 2 so I could hold it in my hand.  It actually came out pretty close -- after the fact I  placed it on top of my airsoft replica of a Glock 17 and it was almost right-on.  I also picked a reasonable LiFePO4 battery from batteryspace.com and printed out a model of that.  Then I made a magazine to hold the battery.  I wanted the battery in the magazine since that's a good place to put the weight, and it would make battery replacement easier.  I need to change the model so that it has quick release tabs for easy removal from the gun.

Not a bad start for one night's work.  I'll post pictures when I can do it from my phone.  There's got to be an app for Blogger, right?  ;)

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