Making a fume extractor for ABS fumes for my RepRap

I made myself sick on accident from ABS fumes. I had set up a 120CFM computer case fan to blow the fumes out the window through a cardboard tube. I had changed my fan from 12v to 5v trying to stabilize the PSU voltage and shut that noisy fan up!

This backfired. As it now didn't vent enough and allowed ABS fumes to accumulate in the house.

So I made a better extractor that uses multiple fans running at 5v. This works quite well. I may re-make it yet, but time will tell.

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I am really hoping that the two pieces on the right are the same size. If I did my math right, the are.

I like how this is turning out! The left 2 are the same size and the right one is 3 inches shorter than the other two.

I was right! The two outside bits are the same size and the middle one is 3 inches shorter.

Fans go in the taller, narrower end and the far side, the short wide end gets jammed into the window.

A few of these ought to move some air.

It pulls air from around the printer to draw the ABS fumes out of the house.

The center bit is simply to keep the box from caving it. It’s made out of 1/16th inch plexi which would want to sag badly.

Gentle pulling of air around the parts.

Dang my work space is messy!

I think the new extractor looks a bit better than the old one did.

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Bella and I made a small patio for the garbage and recycling bins today

First, we had a big lunch of Beef Summer Sauasage, cheese, & crackers. Bella loves the sausage and crackers as you can see.

Than we laid down a few extra blocks and bricks to make a better spot for the garbage cans.

We are usually pretty good about not having much trash on any given week, but every now and then we can fill the cans and they get really heavy and they are annoying to lift up onto the sidewalk.

Now they will just roll onto the sidewalk.

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Crackers need to be shoved into the face with great flair!

Sausage is to be bitten in half and shoved into one’s face.

This is the correct method to ‘shove’.

Half built garbage patio.

The inspector checking out the masonry work. The ‘pounce’ test is about to be performed.

‘Pounce’ test was succesful, now for the ‘marching’ test.

So far all tests have proven a success, now for the visual inspection.

Telling mommy what she’s done!

3 bricks short. Hrmm, what to do???

We will just need to put the garbage cans really close together.

This is just about right!

Yep, perfect placement!

Now, to walk around the can without falling off!

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My first home made object is a mason jar funnel for pressure canning

I even uploaded it to thingiverse! http://www.thingiverse.com/thing:19197

It took me a couple of tries to get it to export correctly out of Google Sketchup. I made it as a solid object and 'cheated' by printing it with no solid layers or infill so it just did the perimeter.

This is done in PLA (which is supposedly food safe) with 2 perimeter layers. It's a bit fragile, but if treated gently works well enough.

If I where to guess, i'd say this one cost me less than a buck to make, while the store bought ones are a couple of bucks to buy. They are sturdier than this one, but mine is a test so I made it 'cheap'.

I wanted to try the oval shaped top as I think round top funnels are never wide enough for me. It seemed to work well.

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My funnel in an empty jar

The shape is supposed to make it easier to poor things into the funnel.

Lots of jars to fill.

The jars filled easily. Leftover supper is getting put up for lunch over the next few weeks. Just practicing with the pressure caner. I love my cast iron too!

Easy does it!

Loaded up my jars in short order!

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