Welcome, Ryan O’Hara of Ohararp.com!
- Ryan is a mechanical engineer who has crossed into the electrical domain in various ways.
- His PhD work was research around robots that fly like bees. It was also featured on NPR in the US. Later he studied wings similar to the Manduca Sexta.
- Since graduating, Ryan has continued to serve in the US Air Force.
- He used to live down in Dayton, where Chris recently attended Hamvention.
- To construct tiny wings, Ryan used the ablation feature available with the LPKF ProtoLaserU3, a UV (355 nm) laser device. These days Ryan uses a CO2 laser, which burns more than ablating.
- The wing material was partially made from FR1500. See the entire material stack up here (pdf).
- The robot insect was controlled by custom ASIC (metalized gate array), similar to what Jeri Ellsworth is doing for the CastAR.
- Ryan achieved his lift targets for the robot by employing biomimicry. Why not let nature do the heavy lifting?
- Later he did consulting work ,which he got through publishing some open projects. One was glacier monitoring, using a low cost device.
- This is how he got into learning about the need for stencils and the different materials used to construct them. Limor from adafruit did a tutorial using info from Ryan.
- His mechanical background came in handy. Ryan recommends the Protomold draft tutorials to learn more about the importance when molding plastic.
- The thickness of the stencil is a standard 3.5/1000th inch.
- Kapton has about 100 uses before the smaller features start to fall apart. One thing that lowers the life span is using a metal spatula to spread solder paste. Ryan suggests using a credit card/hotel key card instead.
- Ryan suggests the Sparkfun tutorial about paste/stencils.
- Jeff Rowberg from BlueGiga has been working on the KeyGlove recently. He also got it to work with Google Glass (hey, Chris was excited).
- Glass has the invensense MPU-9150, a 9 axis motion tracking device.
- LEDs capture Ryan’s attention, as well as his kids and some Christmas decoration enthusiasts. He started a new boutique company, RGB-123.
- Ryan picked up a Quad PnP to do in-house assembly as a value-added solution for consulting clients.
- He got a refurbished machine and feeders from GoPPM, a dangerous site since Ryan is a self-confessed tool junkie.
- He also had help from Twitter. @AutoSportLabs and others helped to narrow it down.
- Dave interacted with the PnP that did his boards in the video where he visited his assembly house:
- Everyone favors surface mount for automation reasons, but Chris recently saw a tiny solder pot for tinning wires.
- Moving to a full time maker business is a big decision, but Dave says it shouldn’t be a hard one.
- Ryan was nice enough to mention Chris’s upcoming program, Contextual Electronics.
Thanks again to Ryan for being on the show! He’s offering a coupon to all interested listeners. Use the coupon code “amphour20” – Coupon is for 20% off Kapton stencils and expires 16 Jul 2013.
Image credit: Ohararp.com