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Reginald Holmes
Worked at TriQuint Semiconductor
Attended Oregon Institute of Technology
Lives in Aloha OR
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Reginald Holmes

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Here is an animated version of the 3D BioPrinter's X and Y stage.
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Reginald Holmes

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I've been too busy to play around with electronics much lately, but I woke up early this morning and thought, what the heck...

This is the insides of a DVD drive. I built a little stepper motor control circuit and wrote a short VHDL code to drive it on the CoolRunnerII CPLD dev board. This is going to be half of a DIY 3D BioPrinter to stack living cells together to make any number of new biologically safe technologies possible!
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Things are going well. I am still working at Intel, day shift now and compressed work week. I have 2 kids and another on the way. I like the 3D printer technology stuff. That's pretty cool. 
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Saturday I started building a raised bed garden. I hit up Home Depot and snagged a bunch of scrap wood for about $20. These pics were taken Sunday morning so there is still a little shade, but that won't last long.

I made the bed "C" shaped for ease of access. I can reach every plant. Watch out weeds!
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I don't think Frank has one of those but he may have something that will work if you do not find one.
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Make your own silocon PV solar panels and IC's the easy way...
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This album is lots of fun and free right now on Google Play!
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Nice, thank you for letting me know. :-) 
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A very smooth, quick and light robotic arm.
 
Beautiful Fluid Actuators from Disney Research Make Soft, Safe Robot Arms - IEEE Spectrum

' Roboticists have long been trying to build robot arms that are light, nimble, and safe to operate near people. Some designs rely on compliant actuators, artificial muscles, or sensors and software to keep the arms from smashing into things that they’re not supposed to. The challenge, however, is that most robot arms are stuffed full of electric motors and gears, and these are relatively big and heavy, adding to the size and weight of the arms.

Now engineers at Disney Research have come up with an ingenious way of making robot arms that are low mass but high speed. Instead of conventional motors, their arm uses what’s called a fluid transmission. It consists of tubes filled with air or water that connect antagonistic actuators. The result is a system that’s passively safe and compliant and lightweight and backdriveable and backlash free and... Well, it goes on. This thing is cool.
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http://spectrum.ieee.org/automaton/robotics/robotics-hardware/beautiful-fluid-actuators-make-soft-safe-robot-arms
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This is an amazing maker movement!
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My dad does that but in his back yard. His plants are huge and produce a lot. 
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This is my concept art for the 3D BioPrinter. Just the X and Y stages so far. I still need to design the Z stage to move the print head up and down.

So far everything is pretty easy to manufacture with the laser cutter and 3D printers at the school so I should have this together soon.
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Finished filling the bed with soil and planting last night. Took these pictures this morning before heading off to work.

1.5 cubic yards of soil
15 green onions
21 shallots
5 tomatoes

I have plants more in buckets, but this is what fit in the bed.
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Those look like onions,  I have been trying to get rid of them from my flower bed. 
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Reginald Holmes

commented on a video on YouTube.
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Nice work! Has there been any progress since this video? I would love to see a link to the project web page in the video description.

The tilting of the extruder should allow you to print overhangs without any support material. Have you tested to see if 90 degree overhangs will print?
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Great. Now I need to buy a new printer...  ;p
 
A common way to create a custom PCB at home is to do what is called the Toner Transfer Method. In this process, the trace layout of the board is printed out on a piece of special toner transfer paper that allows the ink to come off in the following step.…
A common way to create a custom PCB at home is to do what is called the Toner Transfer Method. In this process, the trace layout of the board is printed out on a piece of special toner transfer pap...
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  • Oregon Institute of Technology
    2010
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  • TriQuint Semiconductor
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