(The following text is from my Thingiverse post.)
The Polybar - Create your very own music game controller with your 3D printer!
Do you want to play Clone Hero, but spent all of your money on a 3D printer? Look no further, as you too can enjoy the adventure of building your very own music game guitar.
I set out to create an easy (ish) to assemble and low cost (ish) music game guitar that could be taken on the go. What fun is a music game without your friends? This was designed with the intention on being as low cost as possible, which I am very aware is counter intuitive given the means of creating it.
There are two different sizes for the guitar, as listed in the files. There is the base/fretboard version, if you want to try playing on a ukulele sized controller, as well as a base/extension/fretboard version that is similar in length to a Guitar Hero 5 controller (strum bar to fret length).
Please post your makes, and remix and use the components in your own projects to your hearts content. While my initial goal was to make a fixable, cheap-er-ish music game guitar, the real goal is to get more controllers in people's hands. Make one for your friends or family, and get rippin' on those frets!
The following should outline some printing recommendations, as well as additional parts you will need for assembly.
BASE, NECK, FRETBOARD:
Infill: 20% - 40%
Supports: Yes
Layer Height: .20
INTERNAL BOARDS:
Infill: 100%
Supports: No
Layer Height: .20
FRETS, BUTTONS, STRUM BAR, STRUM FINISH PLATE:
Infill: 20%
Supports: No
Layer Height: .20
STRUM SWIVEL:
Infill: 20%
Supports: Yes
Layer Height: .20
WHAMMY BUTTON:
Infill: 20%
Supports: Yes
Layer Height: .20
(If you have a specific question on a part and its printing requirements, use your best judgement. Most parts need supports for overhangs, except for solid components.)
ASSEMBLY:
Need to do a full writeup... - If you have experience with DIY projects such as this, you will get the jist when it comes to soldering/assembly.
PRODUCT PARTS LIST:
5x Kailh Low Profile Choc Switches (Fret Switches)
https://novelkeys.xyz/products/kailh-low-profile-switches?variant=3747939713064
3x KULONG Key Switches (Strum and Whammy Switches)
https://www.amazon.com/gp/product/B08TLS1B5Y/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1
1x Zero Delay Arcade Encoder (USB-B Version REQUIRED)
https://www.amazon.com/dp/B00UUROWWK/ref=cm_sw_em_r_mt_dp_VN4MECGN653ABJVD0P9Q
4x Tactile Micro Buttons
https://www.amazon.com/dp/B07X8S99RH/ref=cm_sw_em_r_mt_dp_DJBXGPR1J74BZ1D64MVZ?_encoding=UTF8&psc=1
1x Stainless Steel Rod, NOTE: Cut to 102mm
https://www.amazon.com/dp/B08L7V8QBW/ref=cm_sw_em_r_mt_dp_QYB5W39D7ESW6JW8WJ9F
13x M5x16 Screws
https://www.amazon.com/dp/B08CDRQJSY/ref=cm_sw_em_r_mt_dp_WYVQZVDRVG7HGVBC72ER
Other components required are things such as a soldering iron, hot glue gun, and patience.
PLEASE NOTE: Not every printer / component you purchase is guaranteed to have a perfect fit. You may need to make modifications to my models or your products you purchase to ensure a proper fit. With the parts listed above, I was able to create two guitars with no button rattles or fitment issues.