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Tips/Techniques What are you printing today?

Tips/Techniques
Double check those waffle irons, the older ones often have reversible irons with flat on one side for 60's mom making grilled cheese sandwiches. Better yet, you could make waffles.
 
yeah I checked every one of them to see if the griddles came off or reversed. not a one. It's a good idea. but no not making waffles with plastic in them! 😛
 
3D printer airborne pollution? Got any concerns? This shows the spike in PM2.5 coming off my machine for a print. I'm not sure how to assess this but I'm going to try to reduce it greatly as it seems to me like I'm breathing plastic.

My next project is to complete a filter system based on the IKEA UPPATVIND filters. There are downloadable prints for this.

1794102042145.png
 
3D printer airborne pollution? Got any concerns? This shows the spike in PM2.5 coming off my machine for a print. I'm not sure how to assess this but I'm going to try to reduce it greatly as it seems to me like I'm breathing plastic.

My next project is to complete a filter system based on the IKEA UPPATVIND filters. There are downloadable prints for this.

FDM is just as great a concern as resin printers, and yes you get VOCs and ultrafine particulates, so small the penetrate deeply into the lungs.

Oh and they don't filter well using any desktop filter either. Exhaust fans are required for optimal health and safety. Or not, I'm in favour of Darwinism
 
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FDM is just as great a concern as resin printers, and yes you get VOCs and ultrafine particulates, so small the penetrate deeply into the lungs.

Oh and they don't filter well using any desktop filter either. Exhaust fans are required for optimal health and safety. Or not, I'm in favour of Darwinism
Well I'm going to try using the ikea UPPATVIND filter anyway and see what happens. Here is one half of the filter holder, the other half is on the printer. https://www.printables.com/model/1281236-ikea-uppatvind-core-one-hepa-filter-landscape/files

1794238682175.jpeg
 
Quick and simple zip tie holder I designed and printed this morning. File below if anybody wants to print one too.

View attachment 89117
The best zip tie storage hack I've seen yet is to just cut a short slit, shorter than the zip ties, in the middle of the bag. Just reach in and grab one by the middle and it will pop right out. They can't fall out on their own because the slit is too short and with it being in the middle of the bag, the ends won't reach the slit even if you shake the bag.
 
The best zip tie storage hack I've seen yet is to just cut a short slit, shorter than the zip ties, in the middle of the bag. Just reach in and grab one by the middle and it will pop right out. They can't fall out on their own because the slit is too short and with it being in the middle of the bag, the ends won't reach the slit even if you shake the bag.

Yup, that is the absolute best way I've found for keeping them in order on the job. I have a bag in my mobile box just like that. At home I don't want the bags though.

One of the reasons I bought ASA filament was so I could glue it to abs pipe and make a holder just like this (and other types of stuff) with various abs pipe scraps around. Only having to print the bottom.....Well, I never did get around to it, and got tired of not having one, so I just let er eat.
 
Well I'm going to try using the ikea UPPATVIND filter anyway and see what happens. Here is one half of the filter holder, the other half is on the printer. https://www.printables.com/model/1281236-ikea-uppatvind-core-one-hepa-filter-landscape/files

View attachment 89185

It's all a matter of capture... trying to force all the particles thru the filter is like herding cats. Recirculating filtration is a difficult task to accomplish.

Printing chambers leak like sieves. Attachment points leak... spaces around the filters in the racks leak.

I'm sure you'll see a reduction in particulates, but little to no reduction in VOCs with the ikea uppatvind filter. Being a hepa filter that filter has a high static pressure drop and that could impact all your printer's default settings as the chamber heating and cooling ratees will be impacted, so that's something to look out for.

This is why industrial hygienists prefer to utilize local exhaust ventilation, such as a dedicated vent hood with engineered airflows and physical barriers to establish a negative pressure zone that captures and contains hazards directly at the source.

I'm not talking expensive or fancy here either, I'm building a hood from corroplast and an ecm motor bath fan from panasonic. Short walls projecting down to surround the printer on three sides for about 6 inches. That is enough to ensure pollutants are captured by the hood and exhausted.
 
Made these receiver plates for the truck.
I give them out as door prizes at our card tournaments.
 

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