Nov 17

StepMania on the Raspberry Pi 4!

For anyone that knows me, Dance Dance Revolution and StepMania were a large part of my life years ago. It’s how I lost a ton of weight.

6 years ago was my first attempt to get StepMania running on a Raspberry Pi…and it was a horrible experience.

Today I’m proud to say that StepMania runs GREAT on the Raspberry Pi 4!

I’ve hosted the shell script / step by step instructions on how to compile and run StepMania on your own Pi4 as a GitHub Gist:

Just run these commands in a terminal on the Desktop GUI version of Raspberry Pi OS and you will be up and playing StepMania in about an hour.

Enjoy!

-Shea

Nov 16

Things I did in 2020

So, like my last post stated, I did some things while stuck at home.

My absolute favorite project was this:

I followed this guide (https://github.com/geaz/simplyRetro-D8) and built this awesome 3D printable desktop arcade cabinet. It of course uses a Raspberry Pi running RetroPi and uses an awesome readily available 4 x 3 LCD screen!

And of course my little guy helping me build and test it ūüėÄ

I got a small CNC machine in January and hadn’t had time to use it until recently but I have been having fun making some videos of it in action.

That’s a 3040T CNC Machine. You can find a lot of them on eBay and various other importing sites. More fun hobbies that involve turning one thing into another thing ūüôā

On that note, I repurposed my 4k LED display for a lot of statements this year!

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My house got egged for one of those statements. Worth it.

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I edited and 3D Printed a mini Dreamcast case for the Raspberry Pi! Did you know you can play Dreamcast games at 60FPS on the Pi4 now? No? WELL YOU CAN! Using Redream it’s totally possible! You can download the case files here https://thingiverse.com/thing:4539273.

And we got a new kitten!

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Say hi to Dash. Our Manx kitty. He’s kinda awesome.

If you’ve gotten to this part of the post, all I can say is thank you! It’s been a year. Please stay safe out there. Wear a mask. Keep on making. I’ve missed y’all!

-Shea

Nov 16

I feel creative again!

Hey all,

It’s been a long 4 years. I’m so glad Biden won. I feel like a weight has been lifted off my shoulders. That I’m not just trying to survive the next news cycle, but also prospering and looking forward to the future.

It had taken its toll when every day you expect the worst and you are spending all your energy just getting through the day.

But now…

There’s a light at the end of the tunnel (and it’s NOT the headlights of the oncoming train).

This past year while we have all been quarantining I have been building and making things to pass the time. Nothing big enough to warrant it’s own post, but enough that I can update this blog, and hopefully again more and more for 2021.

I missed y’all. Heres to the next 4 years.

Jan 19

PCBArt

Authors Note: While PCBWay has offered to sponsor a run of the boards, everything purchased for this post was paid for out of pocket and without their knowledge. I wanted to make sure they were good on my own.

Hey All,

I’m a collector. I like to collect things. Video games, Raspberry Pis, Pokemon cards, and Pins. I don’t have many pins, but they really appeal to me. It’s like pixel art. Making awesome designs with limited colors on a small canvas.

The department I work for has always made our own logos for our teams and projects. We usually print stickers and give them out at conferences, or to our students when they hit certain milestones (like their first commit).

Techrangers Logo

A eureka moment hit when PCBWay contacted me this month asking if they could sponsor my next PCB board. I’m not ready to make another PiPlay run of boards (we are slowly working on version 2), but I loved the silkscreen art I was able to put on our original run.

What if I could turn our teams logo into a PCB?

I quickly started investigating and found an awesome plugin for Inkscape called SVG2Shenzen!

I use Inkscape for a lot of things, mostly for setting up projects on the Lasercutter at FamiLAB, but I never thought of using it to create PCBs! The boards came out amazing!

PCBWay

Pros:

  • The boards I received from PCBWay.com blew me away.
  • I was not expecting much for $5 (+ $15 shipping from China).
    • I ordered the boards on Saturday, they shipped them out on Wednesday, and they were in my hands by Friday.
  • The production speed is incredible.
  • They audit every board before you pay and begin production.

Cons:

  • The ordering experience was a little clunky.
    • I had to input my dimensions and order details BEFORE uploading my Gerber files. Other PCB manufacturers usually get order details from the Gerbers.
  • Because I was making pins, I didn’t need anything drilled. This caused the audit to fail, and due to the timezome difference, their message to me and my reply caused a 20 hour delay in production. edit: Adding a note to ignore the drill file for my second order caused it to pass the audit test without delay.

The Pros HEAVILY outweigh the very minor Cons I experienced. I will have zero problem using them from now on for my board needs!

Using SVG2Shenzen

https://github.com/badgeek/svg2shenzhen

Once the plugin is installed, you goto Extensions->Prepare Document and click on Apply.

This will generate a new vector document with layers for each layer of the board. Each layer represents a portion of the boards manufacturing. They are:

  • Drill
    • Parts of the board to be drilled out
    • Example: Holes for a key-chain, or for through hole parts like a resistor or LED
  • F. Silk
    • Front of the board’s silkscreen
  • F.Mask
    • Front of the board mask – I have found that the Mask and Copper should be the same design
  • F. Cu
    • Front of the board copper
  • B. Silk
    • Back of board silkscreen
  • B. Mask
    • Back of board mask – Again I have found that the Mask and Copper should be the same design
  • B. Cu
    • Back of board copper
  • Edge.Cuts
    • This is the shape of your board that will be cutout.

When you are happy with your layout, click on Extensions -> Export Kicad, and click apply.

You will now need to open the generated *.kicad_pcb file in Kicad’s pcb tool pcbnew.

You can check a render of your finished board by going to View->3D Viewer. You can change all the colors and see what your finished board will probably look like. If its good, it’s time for the most important step! Generating your gerbers!

Click on File-> Plot to open up the plotter dialog. Select your output directory, and leave the settings as default for now. Click on Plot and a bunch of files will be generated in that directory. These are the files you send to your manufacturer to generate a PCB for you!

Congrats, you made a board!

Happy Birthday To Me!

On another note… I turned 35 this month. Happy Birthday to Me! I couldn’t have had a happier birthday. Spending a nice day with my Wife and Son, watching the little dude play on a swing-set his Grandpa’s built in our backyard.

Have a good one all! – Shea

Dec 31

2018

Hey All,

I almost didn’t blog for the whole year. To be truthful, it’s been hard to write this past year. Lots of amazing wonderful things have happened to me in 2018, but I’m exhausted. And this blog was easy to overlook. I want to write again, but at my own pace. I’m going to try to start again.

That said…. BEING A FATHER IS AWESOME! I have an amazing little mini me who is 20 months old and is just so much fun. He has made me grow in ways I never even knew imaginable.

Maker Faire Orlando 2018

My friend Jacob and I worked on an awesome project for Maker Faire Orlando this year, and I am so proud to say we won Maker of Merit! It is a deep honor to me to win that award. And of course it’s Raspberry Pi related ūüėÄ

We made a 4096 LED pixel framebuffer display powered by the Raspberry Pi!

LED Display playing a clone of Snake
Prototype at the Orlando Science Center

How it works?

We are using P10 LED panels as the basis for the screen. P10 means a 10mm dot pitch, so 10mm between each LED. They range from 3 – 10mm. The panels also usually come in a size of 16 x 32, but luckily they are daisy chainable!

The Raspberry Pi can even handle upto 32 of them in 3 chains! For our purposes we only used 8 16×32 panels in one chain.

8 P10 Panels, daisychained to an Adafruit LED matrix bonnet, connected to a Raspberry Pi 3b+, with power distributed via a CFOL Distro 8 board.

The above picture may look complicated, but it’s not that bad.

8 P10 panels are daisy chained together using a standard HUB75 cable (it’s like an smaller IDE cable).

The panels are mounted together with the orange and red 3D printed brackets.

The first panel is connected to a Raspberry Pi 3B+ via an Adafruit LED matrix bonnet.

The power for the panels and the Pi comes from a 10amp DC supply, which plugs into the bonnet. The bonnet powers the Pi, and has two screw terminals for the voltage output. The +/- screw terminals connect to a CFOL Distro 8 PCB (in the center of the board) which takes the input and breaks it out to 8 screw terminals. We only need 4 since each cable powers two panels, but it gives us room to expand.

After that we use https://github.com/adafruit/rpi-fb-matrix to copy whats on the HDMI framebuffer out onto the LED matrix!

and Voila! You now have a giant low resolution display!

Many thanks to Adafruit for making such a great beginner tutorial that we could jump from, and building a great bonnet for the Pi!

Happy Making and a Happy New Year! Here’s to a wonderful 2019 everyone!

-Shea

Sep 02

Monoprice Maker Ultimate or how 3 point leveling made 3D printing fun again

Hey All,

TL;DR: IMHO 3 point bed leveling is so much better than 4 point bed leveling and auto bed leveling.

So the PiPlay Portable Kickstarter has ended, and we have been doing tons of fulfillment these past few weeks. ¬†One of the add-ons was originally a laser cut case, but realistically, it didn’t work well.

My friend Nick from P3DCreations was able to design us an awesome 3D printable case at the last minute, and the demand for it was high. ¬†Higher than I could reasonably print on my current printers. ¬†3D printing is a lot slower than laser cutting, so I needed to add a new printer to my “print farm”.

Enter the Monoprice Maker Ultimate

The Monoprice Maker Ultimate is a rebrand of the Wanhao D6 (or Duplicator 6) which itself is a mix of an Ultimaker and a Zortrax M200.  I have been printing with it non stop for the past 2 weeks and it has been a workhorse.  I love this printer.  It has made 3D printing fun for me again.  Pro Tip: Wait for it to go on sale, as I got mine for $550 shipped.

Leveling Up

The difference comes from how you level the bed. ¬†The most common bed is a piece of aluminum with 4 screws attached at each corner. ¬†As you screw down each corner, you are bending the bed, trying to make it flat enough for your print to adhere correctly at all points. ¬†Realistically you end up warping the bed. ¬†Every time you get one point leveled, you’ve just unleveled the opposite point.

Auto bed leveling uses a probe and triggers when it detects the bed. ¬†It does this at multiple points on the bed at the beginning of each print to determine the shape and warpness of the bed, and then tries to correct the skew as it prints. ¬†When it works it’s amazing, but if it doesn’t you risk damaging your bed, hotend, and printer components. ¬†Also, depending on the controller board and software determines how well the software can compensate.

On the Maker Ultimate (and numerous other printers) the bed is leveled by 3 screws.  One in the front and 2 in the back.  Doing this makes a plane and makes leveling a quick affair that just works and tends to stay in place for longer.

I also like that the bed is stationary and just moves on the Z axis, rather than i3 type 3d printers that moves the bed on the Y axis. ¬†I’m not a fan of how much motion is generated when moving the bed like that. ¬†I’ve had failures due to the wobble of the bed causing a print to fall off.

There are many great i3 printers, and a well tuned printer will make good prints on any machine, but man, I’m so pleased with this Monoprice Maker Ultimate.

It’s made 3D printing fun again.

 

Aug 23

Gone too long!

Hey All!

I’m sorry about the lack of posts. Being a Dad is the most amazing time consuming adventure I have ever been on! I am currently on paternity leave, and of course I thought I would have tons of down time to post and update….all the parents are collectively shaking their head.

He’s 4 months old now!!! ¬†Can you believe that?!

More updates soon.  I got some awesome Nintendo stuff to post.

-Shea

May 26

Friday Post: PiPlay Portable funded :D

Hey All,

Thank you, to my backers, and supporters, for helping to fund the PiPlay Portable. I’m so excited to get to make this.

We just got the latest prototype boards in, as well as our stickers from StickerMule.  We were also able to get some polybags for real cheap (they are in beta, so why not!)

Also MegaCon is this weekend!  I finished making my Nintendo Switch Arcade Machine and made it an Ultra SF2 Machine.

Have a great weekend all!

-Shea

May 20

PiPlay Portable – Last Day

Hey All,

This has been an exciting week.  The PiPlay Portable is fully funded, and we have less than 12 hours to go on the Kickstarter!


Sam has been growing so fast! ¬†I love being a Dad. ¬†It’s an experience I am so happy I get to have, and of course I have 3D scanned him and got him 3D printed…

 

I also won the Community Leadership award from IMS Global at the LILI conference.  I had no idea I was even nominated!!  I am really humbled by this.  Thank you IMS!

Apr 28

Friday Post: PiPlay Portable is fully funded! And meet the newest member of the PiPlay Team!

Hey All,

The PiPlay Portable Kickstarter is fully funded!!!  Thank you to all of you.  We are super humbled and excited that we get to see this kit succeed.

In even more incredible news….

I’m super excited to introduce our son, Sam, born Monday April 24th.

Mother and Baby are doing great. ¬†We came home from the hospital yesterday. ¬†I’m so excited for this new chapter in our lives.

Have a great weekend all,

-Shea