[Ground-station] Mechanical prototyping resources available - please add if you are willing and able

[Michelle Thompson]

Let's talk a bit more about this.

It's in Berkeley, CA, and you have two of them.

Could you describe what's involved? We can post a PDF with the model
number.

-Michelle W5NYV




On Tue, Aug 4, 2020 at 7:20 PM Bruce Perens <bruce at perens.com> wrote:

> I have two Lindgren RF anechoic chambers with power filters and I think a
> USB filter dating back to the original slow USB. The larger one is about
> the size of the pallet it's on, square, and crushed the plastic pallet with
> its weight. I would contribute that one to the project if we can find a
> place where it would be accessible, and can truck it from Berkeley
> Warehouse. There is a forklift at the warehouse to put it on a truck, it's
> definitely going to need one to take it off.
>
> Thanks
>
> Bruce
>
> On Tue, Aug 4, 2020, 6:53 PM Michelle Thompson via Ground-Station
> <ground-station at lists.openresearch.institute> wrote:
>
>> Resources are caught up. Teams are next.
>>
>> -Michelle W5NYV
>>
>>
>>
>>
>> On Tue, Aug 4, 2020 at 9:02 AM Michelle Thompson <
>> mountain.michelle at gmail.com> wrote:
>>
>>> Thanks Keith,
>>>
>>> Working on a staff and resources repository today.
>>>
>>> -Michelle W5NYV
>>>
>>>
>>>
>>>
>>> On Tue, Aug 4, 2020 at 8:06 AM Keith Wheeler <keith.m.wheeler at gmail.com>
>>> wrote:
>>>
>>>> In PDX I have access to:
>>>>   Creality Ender 3d printer
>>>>   K40 (small) 40W CO2 laser
>>>>   Small engraving machine
>>>>   Small sheet metal brake
>>>>   Hydraulic hand terminal crimper 10 through 0/1 gauge
>>>> Additionally I own but do not currently have access to:
>>>>    Large Smithy 3in1 mill/drill/lathe
>>>>    Metal bandsaw
>>>>    Metal chopsaw
>>>>    Lincoln MIG welder
>>>>    20 ton hydraulic press
>>>>    Hydraulic tubing bender
>>>>    Sheet metal bead roller
>>>>    Throatless shear
>>>>    Numerous rivet, nutcert, cleco, etc tools
>>>>    Numerous hand fabrication tools: flangers, tubing flare formers, etc
>>>>    Numerous taps, dies, end mills, ball mills, specialty bits
>>>>    Router table
>>>>    Air compressor
>>>>    Sandblast cabinet
>>>>    Various paint guns
>>>>    Vacuum pump
>>>>    Composite and casting support equipment
>>>>    Parkerizing solution/equipment
>>>>    Small reflow oven
>>>>    Small solder paste stencil station
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Mon, Aug 3, 2020 at 9:35 PM Michelle Thompson via Ground-Station
>>>> <ground-station at lists.openresearch.institute> wrote:
>>>>
>>>>> Greetings all!
>>>>>
>>>>> This thread is primarily for Scott McGillivray (and other
>>>>> mechanically-inclined volunteers).
>>>>>
>>>>> We will be doing more mechanical design going forward. There are
>>>>> resources available for prototyping. This report outlines some of them.
>>>>>
>>>>> Video report here:
>>>>> https://youtu.be/2omYVVKAnhs
>>>>>
>>>>> Transcript:
>>>>> Here's a walk through of our mechanical fabrication capabilities in
>>>>> San Diego. If you have shop capabilities that you can offer for the Phase 4
>>>>> project, then please file either an issue or a pull request (or write me)
>>>>> and let's add to the list below!
>>>>>
>>>>> Link to document in GitHub is:
>>>>> https://github.com/phase4ground/documents/blob/master/Management/Weekly_Engineering_Reports/20200803_Phase4_weekly_report.txt
>>>>>
>>>>> 1) Voltera V-one circuit printer. https://www.voltera.io/product/specs
>>>>>
>>>>> This can handle ordinary PCB material up to 3mm thick but can also do
>>>>> flexible circuits on material like Kapton.
>>>>>
>>>>> 0.2mm minimum trace width, 0402 minimum passive size, and 128mm by
>>>>> 116mm print area.
>>>>>
>>>>> It can print, cure, and solder. It can also drill but I do not have
>>>>> that attachment.
>>>>>
>>>>> 2) Ultimaker 2 that has been upgraded to a 2+. We have done several
>>>>> microwave feeds and antenna designs including elliptical taper 10GHz horns,
>>>>> dual band feeds, helical structures, and more.
>>>>>
>>>>> We metallize using conductive paint and the results have been very
>>>>> good.
>>>>>
>>>>> Resolution of this printer setup is 0.02mm, which is good enough for
>>>>> 120GHz multi-reflector systems and beyond.
>>>>>
>>>>> 3) Wood shop with metal brake, grinding wheel, and drill press.
>>>>>
>>>>> 4) For textiles and embroidery, we have a Pfaff creative vision with
>>>>> embroidery deck and all the hoops. We also have a serger.
>>>>>
>>>>> 5) Multi-purpose machine, air compressors, and a 1929 South Bend
>>>>> Lathe.
>>>>>
>>>>> 6) This Tormach PCNC 440 is a small, light duty 3-axis CNC milling
>>>>> machine capable of working to accuracies of about a thousandth of an inch
>>>>> (a couple hundredths of a millimeter) within a work envelope of about 6 by
>>>>> 10 inches (150 by 250 millimeters). We have a reasonably complete set of
>>>>> ordinary tooling and work holding accessories for it. We are certainly not
>>>>> expert machinists, but with these tools we can make prototype runs of a
>>>>> wide variety of parts in materials like plastic, aluminum, and steel. Not
>>>>> every shape is easy or even possible to make with a 3-axis mill, but for
>>>>> most designs we can make a part that will work.
>>>>>
>>>>> 7) We have access to the large laser cutter at colab.org. Use of the
>>>>> machine is free for non-commercial work.
>>>>>
>>>>> As we enter into a stage where we will be doing more mechanical
>>>>> design, these are the resources that are immediately available for early
>>>>> prototypes.
>>>>>
>>>>> Thanks everyone!
>>>>>
>>>>> More soon,
>>>>>
>>>>> -Michelle W5NYV
>>>>>
>>>>
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