Dallas Makerspace Show and Tell - July 2016

Finished up my folks virtual slot machines, so they would stop going to the casino.

My mom is Lebron Fan, and my dad collects/rebuilds chevy classic cars.

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I’ve been learning a lot about automotive maintenance and repair lately. I fixed up my old truck, sold it, and bought another used truck. So far I’ve done the transfer case fluid, differential fluid, transmission fluid and filter, engine oil and filter, shocks, engine belts, air conditioning blower motor, air filter, and miscellaneous fixes here and there. Bleeding the brakes is next on the list of things to do. I’ve never seen so much dirt on the underside of a car, you can tell what was worked on because it doesn’t have half an inch of dirt caked on it.

I got a used tool box on Craigslist. Turns out it was too tall to fit into the parking garage at work, I got stuck a few floors up and had to backup to the entrance. That metal scrape is something you never want to hear. A reciprocating saw can cut through much thicker metal than I thought (about half an inch steel). Note the shorter ears on the headache rack in the second photo on the roof of the parking garage. Victory!

Sorry if I blocked the bay this week while you were wanting to work on your car.

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I have been in an Electronics mode for the last week or so and finally got around to some projects I have had on my shelf for years in some cases. I am preparing to start on the electronics aspect of my long term analog music synthesizer project.

First I finished a 20 M (14 MHz) HAM radio CW 0.5W transceiver kit that has been on my shelf for several years.

I also finished the first in a series of kits designed to be housed in tuna fish cans. This is a multiband HAM radio receiver (20M, 30M, 40M, and 80M)


Both of the above kits are from QRPME I then modified my 100W RF dummy load to have a low level RF sampler port to allow me to use a scope or spectrum analyzer to monitor the output of radio transmitters. This is in preparation for a class we are planning to allow people to build a small morse code transmitter.

Finally, I am putting together some resistive loads and decided to pick up some 0.01% resistors to create an accurate resistance standard for some other projects I am thinking about.

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Made a pair of salt and pepper grinders. One on the left is pecan, right one is mesquite and mahogany. Pretty happy they’re functional.

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I thought I would post some pictures from the clay slab box class, on Sun

Uploading…

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My girlfriend’s dog had surgery on her knee. To keep her from jumping off the bed I made this ramp for her to get up and down. Designed in solidworks and cut out on the CNC router. It was a ton of fun to think up and make :slight_smile:

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Cub Scout clock for a customer. About 11-1/2" in diameter. Laser cut from 3mm Baltic Birch plywood. Minwax spray stain in Golden Oak and Early American. Navy blue Rustoleum spray paint for the background.

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I finished the miniature inkle loom that @wandrson had 95% completed for me. I warped it up with 50 wt cotton thread and wove a small tape as my first-ever learning experience. Learned a bunch, enjoyed doing it, and I know I can do better next time. Many thanks to Walter for the loom!

(The tip of the pencil is to give you a sense of scale. The 21-thread woven tape is about 3/16" wide).

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Got the loud box home, ASMSCNCBAB (Another Scratch Makerspace CNC Bad Ass Build)

Cranked it up , fixed the microphone issue, works well…Fun to build.

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I present the Lindsey Dolly (because “Joel Dolly” just doesn’t flow off the tongue), my first “complete” project of the month.

With a lot of help from @kbraby and @LindseyW , I built a cinema camera dolly that fits my purposes better than a Dana Dolly. Sadly I failed to take pictures when I made the flange that holds the cup to the shuttle.

End supports with indexing flats milled into them to hold pipe hangers square to each other. Holes were later tapped to 3/8-16 for mounting to tripods.

Flange indexing ring machined into the dolly shuttle. The field of 5/16 holes for tapping later is being put in by LindseyW.

Tapping 147 holes to 3/8-16… The hand Tapper made the process less painful than it could have been. I do wish it had a bigger platform, but a shim took care of that.

Flange mounted the the shuttle with 100mm bowl cup installed and a Manfrotto 509 head in the cup. I purchased a 100mm bowl head cup instead of trying to fabricate one since the price was right (about $36). Many thanks to kbraby helping me turn a 5"x5"x0.5" block of aluminum into something more useful. The flange is secured to the shuttle with 4x 1/4-20 cap head screws.

Fully assembled and supported on a pair of 75mm bowl tripods. I’ll probably get some junior pins later so I can set the tracks on a pair of junior lowboys instead. Rails in this instance are 6’ long 1" nom schedule 80 extruded aluminum pipe. Most of the time, the dolly will be run on 3’ rails; the 6’ rails would benefit from a center support to minimize flex.

I don’t have the matte box on the camera, but total load in testing is about 20 lbs between camera, lens and battery.

Underside of the dolly shuttle. Wheel assemblies were purchased from a reputable vendor. Thrust bearings are installed sandwiching the wheel trucks to the dolly can be used on curved tracks in the future.

Still to do: anodizing or matte black, oven cured epoxy finish on the flange, shuttle and rail ends. Design and apply a “Lindsey Dolly” logo after finishing.

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What ended up fixing the microphone issue?

Much too nice and well built. You call this a makerspace project? FOR SHAME!!! :smile:

Looks awesome and I hope it lives up to your needs and more.

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The head covers and turning the microphone volume all the way down, I also upgraded the power supply for the amp. So people like @Chris_Wischkowsky won’t point the mics at the speakers on purpose to cause feedback and shut it down.

On a side note @Chris_Wischkowsky

Embrace it, notice the “BOOOOOM”

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This is a pair of knurled aluminum body pens I made today on the Colchester lathe. These will be a gift to my machining instructor and the lab assistant at the end of the semester.

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Finished this spalted elm bowl today. It’s 16" diameter and 2.5" tall. Turned from some cut down logs found from someone’s front lawn.


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Heck yes you did!!!

This is my favorite month of show and tell. Double gold stars - everyone is amping it up big time!

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Thought I would show some pictures from Tues night intro to inkle weaving. they feature the wonderful looms that the Walter and Tapper in the woodshop designed and made

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The housing of the key to my car broke. I designed a replacement and printed a new one. It works great, and I actually like it better!

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RIP concrete table, born July 22nd 2014 to @pawl and @AlexRhodes



Sent to the dump on July 16 2016


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