Face Shield Files Available

We’re still learning and refining things, but we’ve had a number of people ask about the files… so here are the files!

https://github.com/raster/MMS-Face-Shield

They are on GitHub, you can download them, you can fork them, you can share them with others. Since we started with the 3DVerkstan design we are also using a Creative Commons BY-SA license. Please respect that, we want to grow the world of Open Source Medical Supplies.

If you have improvements or suggestions or feedback, we’d love to hear it. Email covid19help [at] milwaukeemakerspace.org

We’ve already had people suggest some improvements, or ask why we are doing things a specific way, so we’re hoping we can all develop better practices through dialog. Also, expect the GitHub repo to change/improve as we learn more. (There’s a cleaning guide for the shields coming soon!)

Any changes to the files should maintain the peg spacing so that shields fit properly into the pegs (at least on our end) as we’re getting thousands of those stamped out right now, and it’s sort of a standard at this point…

Again, share these, try these, use these… Let’s keep fighting COVID-19 and doing all we can to help medical professionals keep themselves (and us) safe!

Want to help?
https://charity.gofundme.com/o/en/campaign/ppe-for-milwaukee

Face Shield Materials & Process

When the push to make face shields started we saw a lot of makerspaces and individuals fire up the 3D printers as tons of designs started showing up online. If you’ve got a 3D printer, by all means, help out by making things… they aren’t the fastest method, but they are nice in that it’s “hit print and walk away” to some degree. And filament? There are a lot of rolls of filament available. (Got access to 10 or 20 or 50 machines in a print farm? Get them running!)

We then saw other people start using laser cutters, which tend to be a lot faster than 3D printers, and PETG was the material of choice, until it ran out. We know a guy who used all the PETG he could source locally, then drove 16 hours to buy more, and at this point there are people who just cannot buy PETG to feed into their laser cutters. (If you can find PETG, keep going, fire those lasers!)

So we opted to use 1/4″ sheets of HDPE (high-density polyethylene) as our visor material. It machines really well and on a large CNC they go pretty fast. You might be familiar with HDPE if you own a plastic cutting board. It’s great because it can be easily cleaned and disinfected, unlike things that are 3D printed.

We’ve got two CNC machines running at a shop one of our members runs. (Milwaukee Makerspace is not open, we are not using the CNC machines there.) We are running with very few people, working a safe distance from each other. The process involves two replaceable spoilboards so you can prep one by screwing down the material, loading it onto the CNC and running it while you spend time unscrewing the cut material from the other one.

The other part of the face shield is the front part, the shield that is in front of your face. Clear semi-rigid vinyl was available so we got that. It cannot be laser cut (well, sort of) so we looked into getting a steel rule die made so we could cut them easily and quickly. In our quest to get a die made we talked to KAPCO Metal Stamping and they offered to just stamp them out for us. Amazing! We don’t have a clicker press and while some friends offered use of their equipment for automated loading and cutting, KAPCO can do a huge volume quickly and safely.

As long as the supply of HDPE and clear vinyl holds out, we’ll keep going with this process. If we can’t source those materials we’ll move on to something else. It’s probably a good idea to start making a list of other materials that could work, or alternative processes for making.

First Batch of PPE Face Shield Frames

Here are some photos of face mask production by the Milwaukee Makerspace team’s efforts to produce face shields.

Here are some photos of the process happening at the shop one of our members runs. (We have very minimal people volunteering at the same time and they are keeping a distance from each other and being safe.)

We want to keep going! We’ve got volunteers, we’ve got machines, what we need is more material to keep them busy. If you want to help, we are accepting monetary donations through GoFundMe to help acquire the raw materials we need.

https://charity.gofundme.com/o/en/campaign/ppe-for-milwaukee

We need HDPE for the visor and clear vinyl for the shields. We’ve got enough to get started, but may run out as early as next week depending on how fast things go.

All face shields are being donated to local area hospitals we are working with, and Milwaukee Makerspace is a 501(c)3 non-profit all-volunteer run organization. We just want to help. Help us help others if you can. Thanks!

PPE for Milwaukee

We’re all living with the effects of COVID-19 and while we’ve temporarily closed Milwaukee Makerspace, we could not sit idly by while our community was in need.

There is an extreme shortage of PPE (Personal Protective Equipment) for medical professionals. The people who keep us healthy and safe are currently unable to keep themselves safe. To combat this problem, the global maker community is creating and sharing PPE solutions around the world.

We have joined that effort. A few of our members have developed a face shield based on an existing popular design (the 3DVerskstan) but with modifications to the visor piece to make it easy to create on a CNC machine instead of 3D printing or laser cutting. We enter production this week and hope to make at least 1,000 face shields by Monday, April 6, 2020. (And then more to follow.)

We had planned to use a drag knife to cut out the clear face shield part, but then decided stamping them out with a die would be faster. As we talked to local companies, a few offered not only to create the die but also to stamp out thousands of face shields. This amazing donation is going to be a huge help.

So what’s next? Well, Milwaukee Makerspace is a 501(c)3 organization, all volunteer run, and we’ve got a few people who are doing a lot of work. Members are donating their expertise, machines, and materials, and some of them are donating their own money to this cause.

As an organization, we’ve also pledged a portion of our budget to this project, even though we’ve closed the space and suspended dues from members. We may be applying for grants to help us provide these PPE donations to local hospitals and clinics (and yes, we’ve already got a list of recipients we are working with.)

We have also set up a GoFundMe page to ask for donations from the Milwaukee community for the raw materials. Please share this page with your friends.

We are all volunteers trying to help our community. (At least three of our members were infected with COVID-19. Two of them had to be hospitalized.) This virus is affecting everyone, so we’ve all got to pitch in and help.

We hope our contribution will allow the medical staff of our hospitals to be safe.

Expect more updates soon… We’re all working as fast as we can, but we do want to share our progress on this as time allows.

Pictured above is our first prototype, which was a two-piece design to allow for tightly nesting the pieces for cutting. In discussion with one of the hospitals they did not want any metal hardware attaching two pieces so we’re switching to a one piece design.

Meet a Maker: Wolfgang Siebeneic

Meet a Maker: Wolfgang Siebeneic

Wolfgang Siebeneich works with wood and metal at the Makerspace.

Among Siebeneich’s many projects at the Makerspace is rehabilitating tools that have been misused.

“Doesn’t take long for tools to get bad in the woodshop,” said Siebeneich. “Tools in this place get … abused a lot …. But I’m gonna clean these up and rehabilitate them and then put them back in the woodshop and see how long they live. And I don’t expect them to last very long.”

One such tool is an adze. Adzes are ancient instruments used for carving wood. 

“One of the earliest known uses for them is for hollowing out logs for canoes. You use it much like you would a hatchet,” said Siebeneich. “I’ve been really happy with the way these work.”

“I’m a real fan of old-school human powered tools,” he said. “In my world, utility trumps aesthetics.”

Siebeneich enjoys making useful items despite his finished projects sometimes being underused. Siebeneich said, “One [project] I did about three or four years ago is building a kickwheel for the pottery area … It took me about three weeks to make it and for the next two years nobody ever used it so it seemed kind of a waste. But it was a fun project.”

“I do get a great deal of satisfaction from doing a project successfully,” said Siebeneich. “The reason I’m proud of them is not anything I do with craftsmanship…but I’m proud of them because they work, beautifully.”

 

by Madi Drayna