eVacuum 3D Printer Filament Storage Kit Filament Vacuum Bags Vacuum Compression Storage Bags, Prevent and Monitor Moisture - 10 Bags with 15 Desiccants, 15 Humidity Indicator Cards and 1 Hand Pump

When I first tried this out, I left one star because it didn't seem like it worked at all. It does, it just requires a bit of a technique to get working (I found positioning the valve over a hole in the filament reel was required. I found there's a 3D print for a disc that's supposed to make this easier but I haven't tried it out.I haven't tried again with the vacuum cleaner to remove the air. Hand pump works but it's not that easy to use.Update: Bag seal holds. Make sure you close it up well.Updated to 5 stars. If I could give half-stars I would give this a 4.5 because the hand pump sucks.

I bought these and spent about 15mins trying to figure out how to get the electric pump to use and realized the air cover was a one way valve concept the electric pump works great with that I bought with this and now I am able to dehydrate and then seal my filament

I finally started using these after they sat in a drawer for a few years. The reason they sat there was I couldn't get the pump to remove the air. Then I looked on the Thing i verse site and found the puck that allows the pump to work properly. It creates a space for the air to be removed. Now I can store the filament in a similar environment to when it was purchased. The bags hold vacuum well once they are stored. Now that I know the trick, I am going to purchase more. These are far easier to use than a dry box given my printer space.

Two of the bags leaked from the start and was unable to use. The rest worked ok and held the vacuum at first. The pump was a challenge on some but I was able to make it work on them all. The problem is they didn't last. After pulling down some of the filament I hadn't touched since I sealed them had slowly leaked. Now after 9 months none of them will hold a vacuum. Nice idea just need better bags.I found the filament rolls will fit in FoodSaver bags so I've converted most to that now. Those are indestructible. I've used it for years for food that goes from freezer to boiling water without ever leaking. And they are cheaper too.

This kit works great. I really only needed the pump and bags so I can't speak on the moisture measuring strips.In the past 2 years I've used maybe 5 full spools out of the 30+ I have accumulated. Since I have a lot of used spools I thought it was time to start storing them better since I wanted to avoid any potential dehydrating.I've had some wood PLA in a bag for months and has not lost it's seal. I also reused a bag multiple times for a roll of black eSun PLA.Even some new rolls lose their seal in less than a month. Considering that, I think this is an accessory all 3D printing hobbyists should have.

Been using these for years to store opened filament. I still dry the filament a bit before each use, but these keep the moisture out much better than leaving the spools in the open, so drying time is much shorter.

I purchased two boxes of these and found they work great to vacuum seal my filament. I’ve only had one bag lose vacuum in two years of use. It’s a bit of work to get the air out with the hand pump tho. Will definitely buy more.

ORIGINAL REVIEW (See update below)--------------------------------------------If the pumps on the two kits I ordered didn't arrive cracked, I would have given this 4 stars.Pros:* Big bags easily fit my filament rolls.* Bags are well constructed, sturdy, and easy to zip.* Works with the accessory suction port of my FoodSaver vacuum sealer.* Kit includes handy humidity indicator and desiccants.Cons* The acrylic nozzle on the tip of the pump was cracked, preventing it from pulling a vacuum.* The above cracks were on two separate pumps. Manufacturer needs to package pumps better. They are just loose in the box.UPDATE (7/13/2021)------------------------Increased to 3 stars.Manufacturer reached out to me and provided a replacement kit. Norah from their customer service team was very polite, helpful, and quick to respond. The new kit also had a defective pump, but I was able to swap out parts from the original kit to get the pump working. Once I had a working pump, I was able to see just how easy the whole system was to use. You simply press the pump over the valve and start pumping. Assuming you've taken care to push out most of the air before sealing the bag, just a few pumps is all it takes to create a significant vacuum inside the bag. I've had my filament rolls sealed inside for several weeks with no visible loss of vacuum. I said before this would have been 4 stars with working pumps, but after some more experience, I can say it would have been 5. It's a shame that the pumps were such a problem, because the bags are great. I hope the manufacturer can resolve their pump issues and earn some 5 star ratings!

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I got this after trying a similar kit from a different vendor with an electronic pump; after that was DOA, I opted for a manual pump instead. You do need to pump vigorously and the pump will get warm about halfway through. I found it's perfectly fine to just put it aside, wait for it to cool down, and finish pumping, and it really creates a nice tight seal. It's a little faster if you squeeze what air you can out of the bag first but honestly no real complaints.

Perfect for wrapping part used spools

Bra

Buon prodotto