Showing posts with label machining. Show all posts
Showing posts with label machining. Show all posts

Tuesday, January 31, 2012

Which Kitchen Hammer Would You Rather Use?

Weight 3.4 lbs. The casting sand wasn't packed hard enough in a few areas so some of the detail was lost (in particular, the word 'from' is not on the handle.)


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Thursday, January 5, 2012

Eyes on the Prize

I do metal work in addition to this madman's diet, mostly in aluminum. Today I made up a foam form for the prize I will furnish to the victor of this challenge. I really hope this casting turns out, I would hate to have to make another one.


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Monday, January 2, 2012

A Really Late Lunch

Sharon and I made noodles last night. I put all mine in a plastic bag and chucked them in the fridge when I got home last night. They all clumped up so I had to rework them all. I came in for lunch at about 2:30, and didn't get done until almost 5.

Today's lunch, I'll still call it that since I still plan to eat later, consisted of;


Linguine with tomato basil sauce

Garlic bread

Hot apples w/maple sugar

1/2 cup grape juice


Let me just comment that,thus far, everything in this challenge is fantastic in comparison to the last one. I had probably 2 or 3 meals in the last challenge I would call good.  The rest of the time eating was a chore.

To start, I overcooked the noodles. Not the end of the world, they were a bit mushy but still palatable. They were made from wheat flour, water, and egg. The sauce I had canned earlier this year, it is comprised of tomatoes, garlic, basil, and salt. We pressure canned it and it looked a little runny in the jar. I did have to cook it down some but it turned out fine.

Sharon and I baked the bread last night, the garlic from a forage in early summer. I peeled the garlic, put it into an egg pan, and then just laid the slices of bread on top.

I canned the apples in light syrup some time in the fall, I don't remember if I picked them myself or traded for them. The maple sugar came from our project last march at the Lohman's.

The grape juice was from grapes I got in trade from my mom. She gave me way more than I had expected and I ended up juicing some of them.


On a side note, I have made a new press cylinder for extracting oil and juice from rose hips. I blew the screen out with too much pressure twice already, but it does work! It is pretty cold out in the shop and I have had the rose hips in the freezer so the oil comes out like butter. Once I brought it into the house it melted away from the berry essence and into the bottom of the cup.


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Sunday, December 25, 2011

The Awesome Project I Destroyed After Just One Use

I took the opportunity yesterday to head out to the local public hunting grounds. While I was there I saw 2 frogs, a fat mole, and a house cat. I spent some time foraging around. I found a black walnut tree (though I didn't collect any this time) a handful of soybeans scattered across a harvested field, and lots and lots of rose hips.

I had been meaning to build a press to extract oil from foods for some time. Yesterday I finally made that dream into a reality, and then after one use I broke it.

I wanted to make something simple and use my h-frame press to apply the force. I poked around for the biggest drill bit I could find, and I found one that was 1-3/4". I poked around in my metal stock and found a short bit of copper rod that, at one end, was the same diameter.



I make aluminum castings a lot, so I started with a bit of aluminum round stock I had recently cast. I use various steel molds, this particular casting is poured into a short length of steel stock and then pounded out when cooled.


Next I put the stock in my lathe (which required a bit of reassembly before use.) I bored out a 1/2" hole to the depth I wanted, then moved right on to the big 1-3/4" bit. The fit with the copper rod was quite good.



Next I drilled a hole into the side of it to allow the fluid to escape. I marked the depth on the rod with a sharpie marker and then gave both parts a wash.


I found a metal baking pan to work in so that the extracted goodness didn't just drip on the floor. I put it all together in the press, applied some pressure and, MAGIC! The resulting juice tastes just like fruit roll-ups.



And then a bit more pressure after that and everything - seeds, stems, pulp - started coming out the same hole as the juice. I needed a screen of some sort, and found one to salvage out of a water tap in my scrap pile.

I put the screen in the bottom and filled the cylinder with rose hips again. I pushed those contents down with the copper ram by hand and thought, 'hey, if I push it down like that I can fit way more in here.' This proved to be a fatal flaw to my plan. The copper rod subsequently wasn't sitting deep enough in the cylinder, and when I applied hydraulic force it bit into the wall of the aluminum cylinder and broke it. Boo.


The whole project, which included a bit of scrounging and machine re-assembly took about 3 hours. I do plan to make a second one and re-use the copper ram.


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