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

Tue Sep 22 11:12:33 PDT 2020

I'm going to visit the big one in the warehouse and take some photos.

On Tue, Sep 22, 2020, 11:09 AM Michelle Thompson <
mountain.michelle at gmail.com> wrote:

> 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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