Emergency Response Door Stop (ERDS) V0.2 by Zach Smith

Zach Smith

Tools>Other Tools

IP Report

Print Profile(1)

All

P1S

P1P

X1 Carbon

X1E

A1 mini

H2D

Variable Layer Height, 3 Walls, 10% Gyroid, TPU for AMS

Designer

52 min

1 plate

5.0(3)

Open in Bambu Studio

Boost

118

232

Released

Description

Introducing the ERDS V0.2! AKA the “Emergency Response Door Stop”!

I was requested by my sister-in-law to create a door stopper that she could use while on duty as a police officer. I based my design on other products that she showed me online, but added my own spin and features to try and make it unique. The main design goal of the ERDS was to create something that is easy to deploy when entering a building to ensure doors stay open for other first responders to be able to follow quickly, while also being simple to store in their belt and easy to remove when leaving a scene (in addition to being easy to print).

The ERDS is currently in testing with a number of officers to see if there are any improvements that I could make to it. As it stands, the model is designed to be printed out of TPU for AMS, or any slightly stiffer TPU variants. I found that the TPU for AMS actually offered the perfect amount of flexibility and toughness, while maintaining it's overall ease of use. My tests with 95A TPU found it to be far too flexible, however I'm sure adjusting infill and wall settings would affect the print in ways I have not tested yet.

Main features of ERDS V0.2:

Designed to fit most standard thickness doors in North America. Maintains a tight grip on the door while also being easy to attach and remove.
Slight taper to the top side allows for use as a standard door stop under the door, assuming the gap is large enough for it to fit.
Narrow enough to fit over the hinge assembly of most doors.
Easy to remove using the paracord strap to ensure that exits are as quick as entries.
Tough, flexible TPU to ensure long life and easy use.

As this is still a prototype for me and things may change as I hear back from those testing it for me, I'll try and keep this updated as new versions or changes come out!

Bill of Materials

List other parts

12" Length of Paracord x 1

Download BOM

Comment & Rating (20)

@Scereth

Print Profile

Variable Layer Height, 3 Walls, 10% Gyroid, TPU for AMS

My son (police officer) was going to purchase some of these on Amazon. I said let me see what's available. I printed a few of these with Bambulab TPS for AMS and they turned out great. He loved them! Well Done!

@ZacharySmith

Awesome! So cool to hear they’re actually out there being used by emergency responders! Thanks for the kind words and for giving them a shot. And thank you to your son for keeping us all safe!

@smituk

Nice design. Printed one at 90% to fit our doors better. Thanks!

The designer has replied

@ZacharySmith

Thank you, nice print! Glad you were able to make it work for your needs!

@loswochos

Boosted

Print Profile

Variable Layer Height, 3 Walls, 10% Gyroid, TPU for AMS

Great idea! Simple and universal! I used Eryone's standard TPU (probably 95A) and printed it with 6 walls and 25% infill. Thanks for sharing :)

Show original

@ZacharySmith

Thanks so much for the kind words!! Glad you could make it work with the 95A TPU! I knew some adjustments of wall thickness and infill would be able to make it work!

@user_3133887595

i’m curious if this model would work well in PLA or PETG? i see that your profile is for TPU only, so i’m assuming you had issues with other materials?

The designer has replied

@ZacharySmith

The intended use case means it needs to be fairly flexible, so that’s why I recommend TPU. My initial prototypes were PLA to make sure the shape worked as intended, but it was way too stiff and after only one or two uses it was already showing stress marks where it bends. Theoretically, the TPU allows it to conform to a variety of door thicknesses which is ideal. PLA and PETG just don’t have the flexibility for that in my experience.

@user_3133887595

Replying to @ZacharySmith :

thank you for your kind & thorough response! i suspected that this may be the case. thank you for doing the research & design, and for uploading the model! will definitely print when i get some PLA

@ZacharySmith

Replying to @user_3133887595 :

my pleasure! Glad you like the model! Looking forward to seeing it when you get a chance to print it!!

@Lgstreet

hi I have made something very similar and I do not have it posted anywhere but I made for my school SRO and it works great so I figure yours will work just as good

The designer has replied

@ZacharySmith

Thanks for the kind words! It’s nice to hear that others have made ones similar to mine and that they work well.

@Lgstreet

ok thought you would like to know that I successfully made one

@user_120831012

Does she have a warrant?

@Lgstreet

it’s to keep the door from shutting

@faluethi108

What is the minimum gap size for under the door? In Europe, the doors usually have significantly less clearance/smaller gaps, which is why many 3D printed door hooks do not work

The designer has replied

@ZacharySmith

The tip of the wedge portion is 10mm thick, and at its thickest the door stop is 15mm thick. The wedge portion is very much an “added bonus” if it happens to fit the door you use it on. Unfortunately there will be lots of doors that are either too close to the floor or too far from it that using it strictly as a wedge isn’t practical. It should still be useable to grab most standard thickness doors between the two arms of the stopper. I designed it to be able to grab doors from ~30mm thick up to ~45-50mm thick, which works for most doors in North America. Unfortunately I can only test on what I have available to me and I don’t have any Euro spec doors nearby! haha I hope that answers your question!

@Huey98

for those using 95A you rather than AMS TPU, id suggest 4 walls and 35% infill. the stock settings leave it too pliable, where a heavy door can crumple it and still potentially lock.

The designer has replied

@ZacharySmith

Yes, absolutely a different print profile would be better for 95A TPU. I’ve been meaning to do some testing and find a good profile to upload but just haven’t had the time. Thanks for posting soemthing that works for others to use!

@user_4289504758

Print Profile

Variable Layer Height, 3 Walls, 10% Gyroid, TPU for AMS

haven’t tried it with the tpu yet but currently printed out of petg to hold coolers open for a vent

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