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Picture of DIY Skee Ball Machine
The skee ball machine is a wonderful thing. The simple experience of rolling a ball into a target is so freakishly satisfying that I used to play as much as I could as a kid at the local amusement park/mini-golf course. The sound of the rolling ball on the ramp, the pop as it launched in the air, and the bouncing as you hoped it would hit the 50 or even the 100.

So when the idea for doing a bigger project came up, I jumped at the chance to make a DIY version. I was amazingly lucky to get a lot of help from the folks at Because We Can who did the design and fabrication of the machine on a Shopbot.

Note: this version was made for Maker Faire and as such has a few loose ends. It survived Maker Faire (mostly), but needs some more work to be bullet-proof.

Step 1: Get Stuff

Picture of Get Stuff
Electronics Software
  • Arduino
  • Processing
  • Illustrator (or other vector graphics program)
Display
Cabinet
  • 7 sheets of 3/4" plywood
  • gorilla tape
  • netting
  • wood screws
  • paint
Tools Other
  • Balls. These are balls from the ice ball game and were bought on eBay (search for "ice balls skee") for $10 each
 
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mjh29013 months ago

Hmm can this run on a raspberry pie?

fungus amungus (author)  mjh29013 months ago

This can be recreated on a Pi. I was originally going to use a Beaglebone Black, but was having issues with it running the sketch. Since I was running out of time I just used my laptop instead.

As far as the sensors, any of the choices out there (Arduino, Pi, BB) can handle the inputs. The scorekeeping is trivial as are the combos. The only thing I didn't have time to do are the graphics.

I am currently working on a RPi version in cunjuction with an Arduino instead of a laptop.The skeeball machine itself will probably be about half as long as the one in your instruction. I'm glad to see you are still responding to messages here. Thanks for the great inspiration! (My last RPi build was a bartop retroarcade!)

fungus amungus (author)  andaloons3 months ago

Nice, I'd love to see how that goes. Since there is interest it would be good to make a DIY Skee site to collect all of the variations. I'd make it myself if I had the time.

I'm not a very good coder; with that said do you know what changes I would need to make to the application file to make it work with an ARM processor? It looks like it pulls a bunch of libraries and when I attempt to run the linux32 on raspbian I get several exceptions:

Exception in thread "main" java.awt.HeadlessException:
No X11 DISPLAY variable was set, but this program performed an operation which requires it.
at sun.java2d.HeadlessGraphicsEnvironment.getDefaultScreenDevice(HeadlessGraphicsEnvironment.java:77)
at processing.core.PApplet.runSketch(PApplet.java:10219)
at processing.core.PApplet.main(PApplet.java:10056)
at freeskee.main(freeskee.java:455)

mjh29013 months ago

I don't have the space to store the machine but, Thanks to you I am planning to build the board with the holes and electronics. maybe design a stand to work with bean bags. The real idea is to work on the electronics, will start with your code, maybe spend time trying to come up with brackets and good ways to hold the electronics and make them repairable. Then if I can ever find a space to store it, build the skiball machine. I love the full machine, saw something similar at maker faire this year (didnt see all the booths so maybe missed this table?)

As I literally live 75 miles away from the nearest make shop or any open shop bot, I was wondering if you could "port" the drawings so those of us who've mastered the original 'shopbot,' aka the router, could have a go at a skee ball machine.
fungus amungus (author)  gargoyle1691 year ago
I could if I knew more about Revit. Let me see if I can get more accessible files out of it.
Do you have ai or dxf files?

We're in the process of building this ourselves. We have the Rings cabinet built already and should have the playfield finished in the next month or so. Probably without cork on the ramp, maybe rubber or something similar.

I made PDFs and DXFs of all the individual pieces, and fixed a couple of errors (a couple missing holes). We used these to plug into our 4x4 shopbot and had to figure out how to index the pieces that were longer than 4'. Not an easy task.

If you want a copy of the files I can send them, just PM me. The PDFs don't have piece counts, and they need to be scaled up 4 times, the DXFs have all the piece counts and are accurate exports from the Revit model.

IMAG0363.jpgIMAG0367.jpg
isaacbeus5 months ago
Who has these files in a ai or dxf format?
andracke5 months ago

Can any help me with information on the shopbot files? I have a group of hs manufacturing kids that would like to make this as a project.

ccbarr1 year ago

Is there anyway to receive more detailed information of your Arduino instructions? Thanks - looks great!

did you find anything?

I'm looking for a step by step guide to setting up the electronics for use and how to add numbers and different colors/fonts...

Thanks!

Are there any detailed instructions/steps for a beginner to set up the electronics and displays, how to customize, etc...??

gmonroy8 months ago

Wonderful !!! Thanks friend!!!

jshimon1 year ago

I'm having issues getting the software side of this figured out. Has anyone successfully gotten that working? I PM'ed OP but did not recieve an answer.

Rad racer81 year ago

Hey was just wondering what degree angle the wood with the holes in is at? Cheers

p.s cool design

Wouldn't it also be fun to have a device to measure the speed of the ball? I really enjoyed your project, lots of really cool ideas! Thanks!
tpardue1 year ago
I was wondering where did you get the cork and how did you secure it to the ramp?
jrinvelt1 year ago
Anyway we could get the shopbot files? I think I can get Revit to DWG, but the next step might be beyond me.
Revit? How would you use Revit to create something like this? Revit is only for architectural renderings (it was never originally intended to create build-able models, either). What CAD did you actually use?
fungus amungus (author)  AJMansfield1 year ago
It was actually Revit. I didn't make the file, an architect did.
It's still the wrong piece of software for the job.
Tell that to this guy: http://buildz.blogspot.com/2010/04/elephant-in-room.html. He created an elephant completely in Revit.

I use Revit everyday and I'm just as happy modeling in it as in some of my other modeling software. Sure, it's not as robust as some but for this project I think it would be great.
fungus amungus (author)  AJMansfield1 year ago
Is it still wrong if the results came out right?
Well, there is that. The main problem with using something like Revit for this is that it encourages Autodesk to add misfeatures (like the ability to do this) to their programs, making it all that much harder to use it for its real purpose when one needs to. This is actually a quite serious problem, as exemplified by the current Revit itself, which (as I said), was only ever intended to be used for architectural renderings, but which now has a large number of 'extra features' that get in the way, and give the user the illusion of being able to actually design a whole building with it.
And then, of course, company managers see the software, get conned into it by that illusion, and then the real engineers have to use it, rather than an actually good BIM program.
I like the results of your project, though. I wish I had my own one now...
fungus amungus (author)  AJMansfield1 year ago
Thanks. Me too. This is currently in storage. Too big for our office and way too big for my house.
fungus amungus (author)  AJMansfield1 year ago
Perhaps, but this is not a complicated project and the person who designed it used the software that he normally uses for architectural purposes. I doubt that skee ball design needs will be driving forward changes at Autodesk. I see what you mean about a greater problem, but this is a tiny tiny subset of that.
May be but people have been using the "wrong software" for years and getting great results, otherwise we would not have a maker sub-culture.
Is there no way to get an exploded diagram with basic dimensions? I don't have Revit or anything like it. But I do have the ability to cut the parts myself on a water jet machine if I can draw the parts. Some basic dimensions would be helpful.
fungus amungus (author)  happyalegrias1 year ago
You can get Revit free for a month.
First of all, let me say how impressed I am with this instructable! There was clearly a fair amount of time that went into this machine, and it's clear that everyone involved worked very hard on it. I love the overall aesthetics of the machine as well as the Arduino integration.

That said, I would like to build one of these for an upcoming course project (the deadline of which is mid-December). I'm an EE student and this would certainly make good demo of what we're doing in my microcontrollers class. Anyway, the fact that the files are uploaded in native Revit formats makes them very time-consuming to get to the point where I can actually send them out to get cut; Revit it not a standard tool in the manufacturing industry.

Would you please try to get the person who created these files to export the different parts separately as either DWG, DXF, or STL files? This would allow other people to take them directly to a machine shop/makerspace to get them cut. Not providing de facto standard file types hinders others' ability to benefit from and enjoy your hard work. If this is not possible, I will gladly bumble my way thru Revit to extract usable files and forward them to you so that others may use them as well.
arpoky1 year ago
Was this built at the office? I think I saw it before it was finished when I visited in July!
fungus amungus (author)  arpoky1 year ago
Nope, built in Oakland. Was done for Maker Faire in May and later stored at the office.
hackmattr1 year ago
Add a coin acceptor and you can have a big piggy bank for your next project.
fungus amungus (author)  hackmattr1 year ago
YES. This was something huge on the list of things to add. Adafruit has a nice one. Was even thinking of getting custom tokens made for Maker Faire so that we could make sure people didn't play twice in a row with people waiting. As it was, the line took care of itself since there were typically 10 people watching and waiting.
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