Quarantine Projects!

mmcmdl

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The wife and kids are home .I am behaving , busting arse . This is tractor time so this is the busy time for me . The dogs got off the leashes and damn near got run over . There is only so much you can do , cronos or not . I do what I do every year , this year is no different .
Stay safe .
 

mikey

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For a 61 YO dude , I did a lot today . Finished the pit . cut two lawns , started parting out the Cub , put down 50 lbs of grass seed , inquired about a back hoe for the bota , put some tiles in the upstairs bathroom , have all my cans ready to go the scrapper ( which is closed do to crono ) . Tomorrow I break out the chain saws and load the pit once again , Sun night was the first trial run which went great . Once Im assurd the chain saws are up to snuff , I'll get bck on the shop stuff .
I got tired just reading this, Dave! I think I remember that I had enough energy to do something like this once but I'm pretty sure it was farther back than 61 years old. You are an official badass old fart, I have to say! :cheer:
 

Aukai

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There are more important money making opportunities in the barn Dave... :cautious:
 

C-Bag

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I got tired just reading this, Dave! I think I remember that I had enough energy to do something like this once but I'm pretty sure it was farther back than 61 years old. You are an official badass old fart, I have to say! :cheer:
I used to work with a guy who's response to Dave's hyper productivity and their description was "are you bragging or complaining? " I feel like a total slug reading Dave's work list.
 

Downunder Bob

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My current project is not actually in the shop, but I'm still using tools. My project is to fit a new lithium battery into my caravan. The battery is 120Ah. and has its own charging manager built in. I'm also fitting a 2000W sine wave inverter. Plus 320 W solar panels.

I already have a 4Kva genset with electric start, which is built into an almost soundproof box. So when its all done I'll be pretty independent and can stop and camp almost anywhere. I also have 180 l of fresh water and 90l of grey water. I would like to have more water, but it's heavy and I'm getting close to max legal weight

Yes I know, pictures, I'll try to remember the camera next time I'm working on it. The trouble is I don't store the van at home, so if I forget anything when I go to work on it, it's a pain to have to come back to get it.
 
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Weldo

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@Downunder Bob that sounds like an awesome vehicle!

This morning I spent 2 hours cleaning and organizing the shop space. Got a bunch more table space now! Also I finally did my local taxes. Then watched an hour long tutorial on Fusion 360.

Is this what retirement is like? I freakin' love it!
 

DavidR8

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@Downunder Bob that sounds like an awesome vehicle!

This morning I spent 2 hours cleaning and organizing the shop space. Got a bunch more table space now! Also I finally did my local taxes. Then watched an hour long tutorial on Fusion 360.

Is this what retirement is like? I freakin' love it!
Hah!
Were you watching the video by Lars?


Sent from my iPhone using Tapatalk
 

Weldo

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Yea that’s the one! It was very good.

Did you notice he didn’t add the stops at the bottom of the female couplers on the box? I’ll forgive it tho since it was just an intro lesson!
 

DavidR8

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Yea that’s the one! It was very good.

Did you notice he didn’t add the stops at the bottom of the female couplers on the box? I’ll forgive it tho since it was just an intro lesson!
I did. I'm actually going to try and reproduce the drawing and see if I can get the same result.
 

Weldo

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One thing that really made sense was how he described that you can add sketches to a plane or surface. When I was crashing around on my own I figured out how to make a simple box but couldn't figure out how to add features to it. Now I know you must select the face of the body you want to add features to, then create a sketch on that face to add features.

It really is a great tutorial!
 

Weldo

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You would have to try it. I'm not clear on whether the commercial lard is before or after pressing.
The stuff is cheap enough.
Let us know.
Just got done trying an experiment with lard.

I was attempting to obtain lard oil from lard. I did a bunch of reading last night and the process by which you separate the waxy solid components from the liquid oil components of a fat is called winterizing or destearinating. Here's an excerpt from Britannica Online...

"It is often desirable to remove the traces of waxes (e.g., cuticle wax from seed coats) and the higher-melting glycerides from fats. Waxes can generally be removed by rapid chilling and filtering. Separation of high-melting glycerides, or stearine, usually requires very slow cooling in order to form crystals that are large enough to be removed by filtration or centrifuging. Thus linseed oil may be winterized to remove traces of waxes that otherwise interfere with its use in paints and varnishes. Stearine may be removed from fish oils in order to separate the solid glycerides that would detract from its use in paints and alkyd resins. At the same time, fish stearine is more suitable than whole oil for edible purposes. Cottonseed and peanut oils may be destearinated to produce salad oils that remain liquid at low temperatures. Tallows and other animal fats may be destearinated for simultaneous production of hard fats (high in stearic acid content for special uses such as in making candles) and of liquid oil called oleo oil." (Britannica Online)

I also found some information and research papers about the formation of crystals in lard at various temperatures and the process by which they can be separated. In case anyone is interested in the chemistry of lard...

https://core.ac.uk/download/pdf/34617334.pdf

As much as I could read before my eyes started crossing tells me that fat crystals form in certain sizes and at certain temperatures in lard. To get lard oil you must separate out those crystals from the surrounding oil in which they are suspended. If I interpreted the information correctly (up for debate) I figured I'd melt some lard, let it sit awhile til it cooled to about 18 degrees C then try to filter it through a coffee filter.

So I melted some, a few spoons, and set a thermometer in the melted lard for a while. Of course I left it sit and forgot about it...

I remembered in time to catch it at 25 C. It had already begun crystallizing and was the consistency of, maybe latex paint or a tiny bit thicker. Maybe pudding. Anyway it was still very soft, yet not liquid. I tried to put some through a coffee filter but it would not pass through under gravity.

The bottom side of the filter did get coated with a very clear film of oil. This may be what I'm looking for. But as I tried to gently force the soft lard through the filter, some of the crystals were coming through.

Ultimately I think you'd need a much finer filter than the paper coffee variety and you'd have to force the soft lard through the filter with some kind of press.

All in all it was a bust but I learned more about lard than I ever wanted to know!

Oh! I also tried dissolving some lard in acetone (about equal parts) and then filtering that through a coffee filter. All it did was catch the lard in the filter and allow the acetone to seep through. Not sure what I was expecting with that one. Maybe the filtered acetone has a small amount of lard oil dissolved in it. Then I suppose you could allow the acetone to evaporate off and be left with pure lard oil with no waxy solids?

That might be worth another try...
 

MrWhoopee

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Just got done trying an experiment with lard....

That might be worth another try...
You are truly a man after my own heart. This sounds exactly like the sort of rabbit hole I would wander down just to see what's at the bottom.
I spent several days last summer exploring the possibilities for removing the sulfation from lead-acid battery plates. I was, of course, unsuccessful, but it was fun and quite educational. Currently playing with black oxide methods.
 

Weldo

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Thanks! Gotta keep busy somehow, right?!
 

MrWhoopee

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Thanks! Gotta keep busy somehow, right?!
Yes. My wife came home last night (she's still working). I thought I had cleaned up for the black oxiding so she wouldn't know. Yea, right. She wiped a clean rag across the kitchen counter and it came up black. She said I'm just like a kid, trying to get away with stuff while she's gone. I said thanks.
 

DavidR8

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Yes. My wife came home last night (she's still working). I thought I had cleaned up for the black oxiding so she wouldn't know. Yea, right. She wiped a clean rag across the kitchen counter and it came up black. She said I'm just like a kid, trying to get away with stuff while she's gone. I said thanks.
And this is why I'll never get away with using the oven to cure painted parts!
 

Weldo

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Haha you just have to allow time for clean up! Estimate the time you need to hide any evidence, then double it! Safety factor!
 

Weldo

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I’m still trying something with my lard experiment.

I’ve got some lard in a jar with acetone and one with mineral spirits. The acetone one dissolved easily but the mineral spirit one didn’t really react at all.

Gonna let it sit overnight and see what happens.
 

hman

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I start with bacon grease. Boil it and an equal volume of water for a while, stirring occasionally, to extract the salt. Discard the water. Then dissolve the lard in kerosene. My cutting fluid of choice for aluminum. A bit of the lard will separate out during colder days, but it still works well.
 

Weldo

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Got some updates from the lard experiment.

Here's what they look like after and overnight soak.

Acetone is on the left and mineral spirits on the right.

EM520566.JPG

In this short vid you can see the mineral spirit sample. It still has some chunks undissolved.

View attachment Mineral Spirits Overnight.mp4

















I drew off the top clear layer of solvent and dumped the rest into a jar with two layers of coffee filter.

EM520573.JPG

Next, the acetone.

Here's a quick video of the top layer consistency. It's like a foam.

View attachment Acetone Top Layer.mp4

















I dumped the top layer into the same type of doubled up coffee filter.

View attachment Acetone Top Layer Filter.mp4

















Here's what was left on the bottom of the acetone sample.

EM520571.JPG

I stirred it up to re-dissolve it. This is what it was like yesterday just a few minutes after the lard was combined with the acetone.

View attachment Acetone Bottom Layer.mp4

















Here's all three samples I have.

Left is the top foamy layer of acetone, middle is the bottom soupy acetone and right is the mineral spirit sample.

EM520580.JPG

A view of what's in the filters.

EM520581.JPG

I'll let them drip for a while and check them out later. I'm starting to come to the conclusion that the manufacture of lard oil is outside the scope of the home shop. At least with my limited knowledge...
 

Weldo

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I start with bacon grease. Boil it and an equal volume of water for a while, stirring occasionally, to extract the salt. Discard the water. Then dissolve the lard in kerosene. My cutting fluid of choice for aluminum. A bit of the lard will separate out during colder days, but it still works well.
That sounds like a good method. It stays in liquid form because of the kerosene, I assume. Kerosene and lard are both supposed to be good cutting fluids so combining them is kind of a win win.
 

devils4ever

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Not to sideline this thread, but I just received a bunch of 1018 steel to keep me busy over the next few weeks. I've read that COVID-19 can live on hard surfaces for days. Is this safe to handle? Should I wait a few days? Should I spray them with something?

To stay with this thread, I just finished my mill stop that attaches to the mill table. Now, I'll start working on my vise version.
 
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Weldo

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Might not hurt to wash it all down with soap and water. Wash your hands after moving them around. Seems like the most likely place for the virus to live is on stuff that the general public touches a lot, like door handles, ATM machines, grab bars on the bus, stuff like that. But you never know. Maybe the guy at the steel yard had it, didn't know, and sneezed on your steel.

Just to be safe wash it down and let it dry in the sun awhile. Seems like the two things that kill it readily are soap and UV rays.
 

devils4ever

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I'm a little afraid of rust using soap and water. Are there alternatives?
 

Weldo

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As long as it dries quickly in the sun rust will be minimal. You will probably get some very light flash rust. You could wipe it all down with alcohol maybe.
 

Suzuki4evr

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I built an adapter for my cheap tool and cutter grinder to grind square lathe tools. I don’t have a dovetail cutter so I used a 60* countersink and then got into the corners with an 1/8” end-mill. It works very well and by widening the slot and adding set screws I can grind any size I need. View attachment 317885 View attachment 317886
View attachment 317887
Nice job. Any plans you would like to share? South Africa is also under lockdown from 24:00 tonight for 21 days. PLAYTIME in the shop.
 

Weldo

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I think hydrogen peroxide is a very strong oxidizer of ferrous metals. Maybe not at drug store concentrations though. Not sure.
 

FOMOGO

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Living up to your handle Low tech, but that's what I've been doing here at home with delivery's. Everybody be safe out there. Mike
 
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