The following refers to: 3DPX-013359
The FDA has authorized production of protective face shields outside of the normal clearance pathway during the COVID-19 pandemic, based on Part 5, section D of the “Enforcement Policy for Face Masks and Respirators During the Coronavirus Disease (COVID-19) Public Health Emergency Guidance for Industry and Food and Drug Administration Staff." This face shield has undergone review in a clinical setting and is recommended when fabricated as instructed.
This is an update of "DtM-v3.0 Face Shield PPE, 3D printable headband", item
3DPX-013238. We have removed the logo from the STL and CAD file, in order to improve cleanability and infection control.
Product Point of View
Healthcare workers responding to COVID-19 who face PPE (personal protection equipment) supply gaps while waiting for domestic face shield production to catch up with demand NEED a transparent face shield that:
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limits aerosol and splatter exposure from in front and above, while providing top ventilation
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reduces aerosol and splatter exposure on N95 and other face masks
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is re-usable for a single user (can survive multiple daily washes; transparent visor can be replaced from readily sourced materials when worn out)
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is easy to fabricate within a few days of design approval (ie no complex supply chains or production bottlenecks)
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is comfortable to wear and easy to don and doff (as it will be taken on and off dozens of times in a twelve-hour shift)
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provides protection to broader area of face compared to standard safety goggles or glasses
Bill of Materials
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3d-printed headband in PLA, roughly 50g/1.75oz per part. Outer envelope of 3d-printed headband is 191mm wide, 148.5mm long, and 52.5mm tall. Print time is roughly 3h15m per part on a Prusa i3 MK2S and a Lulzbot Taz 6 at 30% infill, no supports.
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Acceptable alternate 3d printing materials include PETG, ABS, ASA, Nylon
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Elastic for the headband: could be 7”x1/8” rubber bands, 13” strip of 3/4" wide buttonhole elastic, coflex/coban tape
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A standard US letter-sized transparency or report-cover for the shield, 2-10mil (0.002-0.01”, 0.05-0.25mm) thickness
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Acceptable alternative materials include clear PETG, PMMA or mylar in the same thicknesses cut to 8.5” x 11” (215.9mm x 279.4mm). Dimensions for a US-style three-hole-binder punch: three 6-8mm diameter holes with each center spaced 108mm apart. Do NOT laser-cut PVC
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Options:
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Clinicians and caregivers who have worn the device on service recommend the following additions to the headband to improve comfort: add a wrap of foam tape or "chest tube foam tape", tape layers of gauze or a folded paper towel on the headband; dispose as necessary
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Before hole-punching, add tape (duct tape, medical cloth tape, etc) to reinforce the holes at top of the transparency sheet during repeat use and washings. Remove and replace tape between patients as necessary.
Instructions for Use and Assembly
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Punch holes in standard US letter-sized transparency (8.5x11 in) with a standard US three-hole-punch.
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Attach transparency to headband on the three mounting pegs.
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Attach elastic to headband with cleats near temples, adjust to fit. Some users may find 7” rubber band too tight, consider chaining elastic bands as necessary.
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To clean, follow CDC recommendations in Strategies for Optimizing the Supply of Eye Protection - Selected Options for Reprocessing Eye Protection. DO NOT submerge or soak 3D-printed headband in cleaning solution as the headband may absorb the solution and leak it out onto the wearer’s forehead over time.
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Discard and replace the transparent visor as appropriate, after excessive wear or fogging.
This design is a remix from the Prusa Protective Face Shield - RC2. We are grateful to the team at Prusa for their design skills, their commitment to open hardware, and their leadership in a crisis.
FDA Notice on Emergency Response
https://www.fda.gov/emergency-preparedness-and-response/coronavirus-disease-2019-covid-19/fda-efforts-connect-manufacturers-and-health-care-entities-fda-department-veterans-affairs-national
For Fusion CAD files, see the PrusaPrints archive here:
https://www.prusaprinters.org/prints/27748-dtm-v30-face-shield-ppe-for-covid-19-remix-of-prus/files
Comments
tprestero
Thu, 2020-04-02 15:12
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Printing in HIPS not recommended.
Some people are running out of PLA and PETG filament and reaching for more exotic filament materials. We don't have any information on chemical resistance of HIPS, and we don't recommend this material at this time until the team can conduct further investigation and testing.
jhunt@arete.com
Wed, 2020-04-08 12:51
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Updated geometry
I have made a modification to the design that I think is worth sharing. How do I do that?
theschles
Thu, 2020-04-09 13:58
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Suggested supplier of PLA & PETG
Hi all,
The word on the MasksForDocs forum is that Atomic Filament is actively manufacturing and shipping like crazy -- usually delivering within 2 days -- https://atomicfilament.com/
FYI I am in no way related to Atomic Filament. I'm just trying to get PPE built.
3dprintingny
Mon, 2020-04-13 08:19
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What Filament should I use for Hospital ?
Is PLA ok to use?
TayFilament
Thu, 2021-01-21 15:24
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Check out this guide
I ran by this free guide the other day and it seems PLA would be good for use in hospitals.
Heres the link to the guide: FIlament Hub: PLA-ABS-PETG FREE Guide
TayFilament
Thu, 2021-01-21 16:12
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PLA Sterile?
Hey Guys i ran across this guide earlier and its pretty good but PC/ABS seem to be good but im stil not sure whether there is autoclave capability with PLA.....
Here is the link to that guide: https://filamentmasteryguide.filamenthub.com/everything-you-need-to-know...
Meghan McCarthy
Thu, 2021-01-21 17:00
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PLA likely not compatible with autoclaving
Hi TayFilament, the melting point of PLA may be above autoclave temperatures (depending on autoclave protocol), however the glass transition temperature of PLA is much too low (around 60 degrees C), so the plastic would soften. Also, the increased pressure inside an autoclave would warp the softened plastic. More information on sterility of 3D printing is reported here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5136128/
Beth Ripley
Thu, 2020-04-02 22:05
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CLINICAL REVIEW
What tests does the VA run for face shields?
Faceshields are used to prevent fluids from hitting the wearer’s underlying face mask or, if not wearing a face mask, the wearer's mucous membranes (mouth and nose).
Tests that we ran were:
Additional quality checks: Are the manufacturing instructions clear? Is it easy to assemble the device? Are there instructions for use?
avj2592
Sun, 2020-04-05 02:57
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Testing Standards
Did you follow any standards for these tests? If so which ones were used?
Beth Ripley
Tue, 2020-04-07 13:14
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The Instructions for Use are
The Instructions for Use are linked under the Extras tab. These should explain exactly how to print, assemble and clean the shields.
The testing standards were designed in coordination with FDA based on the existing standards, but modified to be able to be done in a clinical environment in rapid time. See above for descriptions.
GreenEllipsis
Fri, 2020-04-03 00:28
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Spec Sheet
I was asked by one hospital to provide a spec sheet. Here is what I came up with. Use as you see fit. You can download it here: https://drive.google.com/drive/folders/12PDqUGKuI07vD8fZ8sFlBIlU6KjpX_0y?usp=sharing. The environmental specs my best guess; I'm interested in better data.
kachmarmj
Fri, 2020-04-03 09:01
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Fusion File?
Would you be willing/able to share your Fusion 360 file (.f3d)?
tprestero
Sun, 2020-04-05 10:48
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Fusion files
For Fusion CAD files of both the US-letter and A4 models, see the PrusaPrinters archive here:
https://www.prusaprinters.org/prints/27748-dtm-v30-face-shield-ppe-for-covid-19-remix-of-prus/files
s_fussnecker
Fri, 2020-04-03 13:55
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Is TPU acceptable
I printed this with TPU to make it more comfortable to wear. It worked well. Are there any issues with using TPU? I've thought about making an attachable band that can be printed with TPU and print the shield portion with PLA, but wanted to see if there are any concerns with using TPU before I go that far.
Hilbe
Fri, 2020-04-03 21:12
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Profile
Any way to make it shorter/thinner profile? Takes a while to print and would love to save some time.
MWChurchill
Sun, 2020-04-05 00:38
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rounding bottom edge of brow band
Adding even a small radius/champher to the inside bottom edge of the brow band would increase the comfort. The weight of the visor and the shield cause the mask to weigh downward slightly and the crisp 90 degree corner presses into the forehead.
GreenEllipsis
Sun, 2020-04-05 11:08
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Faster printing
So long as equivalent mechanical properties is maintained, is there any reason going to a bigger layer height would not be acceptable?
jrhirsch
Sun, 2020-04-05 18:04
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Printing in nylon
This prints well in PLA. In nylon the upper visor section the filament does not fully adhere. Its not visible at first. Bending it back exposes breaks in the filament which are unsanitary. Any ideas what settings I might change to make nylon print better? The hospital really preferred the nylon sample I sent,
Marty_P
Tue, 2020-04-14 07:49
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Re: Printing in nylon
I had the same problem using bridge nylon. I had to add a brim (5mm) to ensure print bed adhesion. I increased my flowrate to 125% to solve the upper visor filament issue.
aushra
Sun, 2020-04-05 18:09
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FASTER 3D printing of face shields?
CNC Kitchen recently posted detailed instructions for speeding up a 3d print like this:
https://www.youtube.com/watch?v=_bt1UZAnxnA&list=PLn3hevvzp5X6mxCNkNBT5N5q9Hhqw16LQ&index=6&t=0s
cfunk117
Mon, 2020-04-06 09:00
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PolyJet
What material would you recommend using for polyjet printers specifically the Object 500 Connex3 and the Eden 500v? If there is no material that is recommended for the fabrication of headbands is there anything that could be produced with these printers to support local hospitals?
StepSix
Wed, 2020-04-08 17:07
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Your questions can be
Your questions can be answered by reading the above-provided materials. Check with your printers product support community for information regarding printer-specific questions.
Brad_Ensign
Mon, 2020-04-06 14:23
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I like your idea. I've
I like your idea. I've downloaded your files. Thank you for sharing! We are kicking around ideas for some type of NASA COVID-19 response, not sure what will actually happen. My contact info is brad.a.ensign@nasa.gov. I'm new at this and have never printing anything myself. Let me know if you have any questions.
Eric Montreal.
Mon, 2020-04-06 15:16
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Remix with name tag and clear sheet holding strap.
Hi,
I made a remix of your face shield with a flat surface for adding a name tag, and a clear sheet holding strap tha's a companion product for it. The strap particularly useful when using very thin sheets such as retroprojection acetate. Both are open source with STL and FreeCAD source file
The remix:
https://3dprint.nih.gov/discover/3DPX-013585
The strap:
https://3dprint.nih.gov/discover/3DPX-013586
PETG is recommended for the strap as it's a bit more elastic than PLA that may break.
OswegoDVT
Tue, 2020-04-07 09:26
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Raise the pins up to close crescent shaped gaps
If this frame is used with clear plastic sheets that have been punched with a 3-hole punch. There are 3 small crescent shaped gaps that can allow liquid spray to get through the shield. We are printing these shields but doctors told us that the gaps could be a problem when health care workers intubate a patient. Therefore we have raised the three pins up 4mm. That has closed the gaps. It does require that this design be printed with support material just in the area of the pins. That has added about 7 minutes to our print time, but results in a much better shield.
foxbat77
Fri, 2020-04-10 08:37
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upload remix
Can you possiblly upload the STL to this remix? I have noticed the gaps too.
CM3D
Tue, 2020-04-07 21:13
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Great Design
Successfully print this design in PLA and ABS M30 on Stratasys F170 and have inventory available.
benj821
Wed, 2020-04-08 12:24
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Molding the Mask
Hey guys, looking to ramp up production, I was thinking of going from printing this to using a pourable resin in a mold that would cure in half an hour. Has anyone done this? I've only used silicone molds for some carbon fiber composites.
RocketRanger
Wed, 2020-04-08 15:20
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Is clear PVC sheet OK to use for the clear faceshield component?
I've got a question about the General Information, Bill of Materials section for the clear face shield component. In the description for Acceptable alternative materials, it states: "Do NOT laser-cut PVC". I'm wondering what the rationale for this statement is? Does this mean that clear PVC sheet can't be used for the face shield (why not?). Or does this mean there are some hazardous gases given off by the laser cutting process but PVC can be cut using a mechanical means? And is clear sheet PVC OK to use for the face shield?
tprestero
Wed, 2020-04-15 19:41
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Do not laser-cut PVC!
Although polyvinyl chloride (PVC) can in fact be cut with laser, the thermal process produces hydrochloric acid and toxic fumes. For this reason, we advise you not to use laser for cutting PVC in order to prevent corrosion of your laser system and to ensure the safety of the machine operator.
3DLirious
Fri, 2020-04-17 12:34
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NEVER laser cut or burn PVC
The instructions to not laser cut PVC are good general instructions. Burning PVC (including via laser cutting) generates chlorine gas, which is both highly toxic and corrosive, ruining your lungs and your machine. Mechanical cutting of PVC should be fine.
theschles
Thu, 2020-04-09 14:08
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Stacked build to maximize usage of 600x600x600 build area?
Hi there,
I just got tentative approval to use a 600x600x600 build area CreatBot D600 Pro. Both they and I are basically n00bs on 3D printing.
They've asked me to provide file(s) to the owner so they can cost it out, determine time a full build will take, as well as make it as simple as possible for them. Would anybody be able to develop / publish a stacked build that'll maximize usage of that build area?
Here are the specs on that CreatBot D600 Pro:
https://www.creatbot.com/en/creatbot-d600.html#tech-Specs
Printing
Print Technology
Fused Deposition Modeling(FDM)
Build Volume
600*600*600 mm
Number of Nozzles
Double
Resolution
0.05 mm
Layer Resolution
0.05 mm
Filament Diameter
1.75 mm
Filament Compatibility
PLA, ABS, Carbon Fiber, Wood, Nylon, PC, PTEG, HIPS, PP, Flexible, TPU, PVA, etc.
Nozzle Diameter
0.4mm (0.3 0.5 0.6 0.8 1.0mm)
Print File Type
STL, OBJ, AMF, Gcode
Temperature
Ambient Operating Temperature
15 ℃~32 ℃
Max. Nozzle Temperature
420 ℃
Max. Bed Temperature
100 ℃
Max. Chamber Temperature
70 ℃ D600 Pro
Filaments Drying Temperature
45 ℃/65 ℃ D600 Pro
Mechanical
Construction
Power-Coated Steel, Aluminum Casting for Motion Components, POM
Build Plate
Borosilicate glass bed
Build Plate Leveling
Factory Leveled, Adjust Manually Automatic D600 Pro
Extruder
Directly Drive
Stepper Motors
1.8° Step Angle with 1/16 Micro-stepping
X Y Positioning Precision
5.08 μm
Z Positioning Precision
1.25 μm
Speed
Best Printing speed
45 mm/s
Max. Printing speed
120 mm/s
Electrical
Power Requirements
100-240V, 50-60Hz;220-240V, 50-60Hz D600 Pro
Screen
4.3'' Touch Screen with Multi-language
Max. Power
1 000 W~4 000 W D600 Pro
Control Chip
ATmega 2560
Storage Media
USB Disk
Connectivity
USB
Software
Software Bundle
CreatWare, Simplify 3D, Cura, Slice 3r, etc
Supported File Types
STL,OBJ,AMF
Operating Systems
Win7/8/10, MacOS
Special Function
Outage Restored
Save data when power is off
Filament Detection
Pause printing when filament run out
Automatic Shut-down
Turn off the power automatically when printing is complete
Size & Weight
Product Dimensions & Weight
915*845*1 085 mm 125 kg
Packing Size & Weight
1 000*1 030*1 360 mm 190 kg(Pallet)
towatson
Wed, 2020-04-22 19:04
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Stacked build stl for 600 x 600 x 600 printer
I used the shield model I have been printing and made an STL file that will fill the printer above with 288 frames. You don't give much detail on what you want so I just took a swing at it. Tell me how you want to get the .stl
serax34
Sun, 2020-04-12 10:11
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I like this one
As a medical professional, i like this one because it protects forehead also ! But a small print should be performed downside of the shield (acetate) to keep shield round and stable
Brad Baker
Fri, 2020-04-17 09:46
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Great design - video of face shield included
This is a great design and we have printed several using PETG on a LulzBot TAZ Pro. Here is a short video: https://youtu.be/qVT5fHNW4Ek
dstillson
Mon, 2020-04-20 13:09
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Inkjet Transparency Film by Octago
This transparency film is .005 in thick and 100% clear. Is this okay to use for the shield?
dstillson
Mon, 2020-04-20 13:22
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.4 inch wide buttonhole elastic
I have .4 inch wide buttonhole elastic that seems to work fine. Is this acceptable to use if I donate shields to a hospital?
3dCADLabtech
Wed, 2020-04-22 19:20
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model stack
Can you remix the thinner visor model as a stack of 2, and a stack of 3? (physical model connections between stacks not needed) Separate stack STL files please.
towatson
Thu, 2020-04-23 10:26
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Stacked build to maximize usage of 600x600x600 build area
I have a .stl with 288 frames in a 600x600x600 volume. I have tried to publish it on this site, but the file here only has 8. I have uploaded the 288 version twice but it does not appear. Please contact me if you are interested. Perhaps I could put it on thingiverse.
snugglelugapuss
Thu, 2020-04-23 11:01
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Anycubic Mega-S Work?
Hello,
I am Extremely new to printing (i.e. i dont own one yet) but my wife and many memebers of our local dental community need a face shield to begin providing dental care again. This design seems ideal for use with Loops. I am looking into getting a printer ASAP and this one is available: Anycubic Mega-S
I am relatively tech savvy and am a tinkerer, but with the influx of new info for my first time diving into the world of 3D printing I wanted professional advice from you all on whether this printer can print this face shield effectively (it seems to meet th requirements, but I measure twice cut once).
Please let me know what you think! Thank you in advance
snugglelugapuss
Thu, 2020-04-23 11:37
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Anycubic Mega-S Work?
I am extremely new to printing (as in dont own one yet) but i have a number of friends in the dental community who asked me to look into this for their protection.
2 questions:
1) Does this printer - Anycubic Mega-S - meet the guidelines? it appears it does, but i am a measure twice cut once person!
2) The actual Shield that pops on - are these just PET material Clear pastic Sheets? Like for an overhead projector?
Any advice you can give me would be greatly apprecaited!
elena nazarov
Mon, 2020-05-04 19:58
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frame modification
I am a dentist and use magnification loupes with a light attached. My loupes are a flip-up type so it is a bit bigger than through-the-lens kind. I am perfectly fine with them and changing it to a smaller size is not in my budget at this moment but I need to get back to work. I measured the distance the shield has to stand off the headband to clear the loupes with light and it is almost 4" (more like 3 and 3/4). Will this design allow me to wear my magnifiers?
Thank you
BMJOR
Wed, 2020-05-20 23:29
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Request for extended version
I have probably printed and donated probably 40 or so of these, they are great, thanks! I kind of crudely also made modifications in meshmixer for an extended version. The extended version was for a re-opening dental office who was otherwise unable to get face shields. They need them with extra space to fit the dental loupes/light in there. If you could publish a version modified from the source file with roughly double the distance between the forehead interface and the shield, and some extra hight on the upper shield to help compensate for the extra distance, i'm sure plenty more dental offices could make use of them (and i could print the more clean file).