[sshc-fig] 1/13 notes

[Mike Gerges]

I imagine with as much time/effort goes in to getting the foundry up and
running it make the most sense to do multiple pours at once. I imagine if
anyone announces they're doing one people would be happy to join. I saw a
design once for an electric foundry as well...that might be worth
researching at some point

On Sun, Jan 14, 2018, 4:27 PM Brady Huddleston <gungthar at gmail.com> wrote:

> I think it would be great for people to be able to pour on their own. My
> concern is how incredibly dangerous the foundry is, and how easily it can
> maime people/our building. I think after another demonstration pour, it
> would be a good idea to go over all the safety concerns, and make them part
> of the certification process. Beyond that, a pyrometer would be lovely.
>
> We should also make it a point to bring a fire extinguisher next time.
>
> On Sun, Jan 14, 2018 at 16:16 Mike Gerges <gerges.michael at gmail.com>
> wrote:
>
>> Funny you mention the laminated sheets, Dmitry and I are working on just
>> that.  A "certification binder" if you will (even if you won't, we're still
>> doing it)
>>
>> On Sun, Jan 14, 2018, 4:15 PM X tX <trnqfl at gmail.com> wrote:
>>
>>> Thoughts!
>>> - It would be great to have a laminated sheet (to do dry-erase safety
>>> checks on) for this and other tools with very dangerous/surprising energy
>>> sources.
>>> - A simple "you must have a buddy" decree should be made and may clean
>>> up a need for multiple role certifications.
>>>
>>> With those two guards in place, anyone certified should be understanding
>>> and safe with it and have some idea of the variety of failure modes to
>>> watch out for ("make sure you have an extinguisher and at least X gal of
>>> water at hand, make sure you're not pouring near concrete..").
>>>
>>> R
>>>
>>> On Sun, Jan 14, 2018 at 3:57 PM, Allan LeSage <allanlesage at gmail.com>
>>> wrote:
>>>
>>>> Hiya,
>>>>
>>>> More notes!
>>>>
>>>> We'd like not to bring the foundry inside while it's still hot; after
>>>> two hours (and a li'l nap) the interior was still hot to the touch.
>>>> Discussed briefly with Phil who very graciously agreed to put the foundry
>>>> in its cubby later in the evening.  Phil suggested that the foundry would
>>>> be safe to store inside at 100 degrees, we talked about obtaining a
>>>> pyrometer to test--Phil offered to bring this up at the weekly sshc meeting.
>>>>
>>>> We accidentally burned through the bottom of that black tub, the
>>>> plastic melted.  It cost $5 at Home Despot so not a big deal--I don't think
>>>> the metal went through obviously but the sand was maybe too thin.  Also the
>>>> second tub which contained the lid warped a bit.  More sand, maybe larger
>>>> bins.
>>>>
>>>> Yes to some sort of official ruleset, or something toward a
>>>> certification workflow.  I think there are two roles: the melter/pourer and
>>>> the person responsible for the foundry, what do you think?  We can do more
>>>> than one pour in a day, maybe it takes a number of pours to become eligible
>>>> to operate the foundry, which has the benefit of being able to operate
>>>> alone, lead a new group, etc.  What do you think, Brady?
>>>>
>>>> Yes to doing this again, maybe in two weeks?
>>>>
>>>> Let's do a sand casting next time, I have in mind to do this
>>>> http://www.backyardmetalcasting.com/alumflasks01.html .
>>>>
>>>> Sand casting is kind-of messy and requires water; if the space is
>>>> crowded like last Saturday then there's really not enough room.  Do we have
>>>> a portable folding table or some such?  If so we could move to the hall
>>>> close to the loading dock.  IMO that's kind-of better, even, because it's
>>>> easier to clean up an empty space.  I think we can recondition the sand
>>>> with water in a bathroom, e.g. that weird spraybooth on the first floor?
>>>>
>>>> Andrew I accidentally stole your shiv/multi-tool, will return to you
>>>> ASAP.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Sat, Jan 13, 2018 at 10:41 PM, Brady Huddleston <gungthar at gmail.com>
>>>> wrote:
>>>>
>>>>> We should work on some sort of offical ruleset as to how to pour. At
>>>>> some point, it might be nice to have members organizing their pours through
>>>>> a certification line.
>>>>>
>>>>> On Sat, Jan 13, 2018 at 22:28 Mike Gerges <gerges.michael at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> What I saw was awesome, I'll definitely dress better for the weather
>>>>>> next time...we should do a next time... Or even practice making some sand
>>>>>> molds or something
>>>>>>
>>>>>> On Sat, Jan 13, 2018, 3:28 PM ulrich00 <ulrich00 at gmail.com> wrote:
>>>>>>
>>>>>>> I would like to note that I missed it and I'm sad :<
>>>>>>>
>>>>>>> On Sat, Jan 13, 2018 at 2:57 PM, Allan LeSage <allanlesage at gmail.com
>>>>>>> > wrote:
>>>>>>>
>>>>>>>> Any comments or notes or whatever?
>>>>>>>>
>>>>>>>> Here's the blog post I was looking for concerning the propane PSI
>>>>>>>> at the burner:
>>>>>>>> https://gordsgarage.wordpress.com/tag/homemade-foundry/ .
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
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