Installing WhamBam Flex on Creality CR-10 Max

CR-10 Max from Creality is a large printer. One thing i don’t like about it is the printing surface. I’m used to the comfort of Prusa flexible sheet in order to get the models removed easily from the build plate. And on Creality sometimes prints stick too well . So well that i had to take the build plate out and remove them. When printing shields this is annoying and time consuming. So i decided to give a try to WhamBam Flex system . Took around 10 days to get it. I didn’t found any tutorials on how to do it for CR-10 Max so i decided to create a how to so other if they are interested to have a reference point. Took me almost 20 minutes to install it. So here is how to install whambam on creality CR-10 Max:

There are 2 parts of the video ( joined them ) (when shooting the video i forgot to remove the last protective sheet , and after i actually tried to print PLA didn’t stick at all . I figured out what was wrong and added a short video at the end of the first one ) .

So I hope you find this useful.

Face shields – Models and variants – analysis

So far have 3d printed 3 variants of faceshields. I’ll try to compare them. If you have feedback please add it to comments section below. So let’s start

  • Model 3 – verkstan
  • Model 2 – timisoara
  • Model 1 – prusa

Let’s compare them:

Time to print (min)Number printed in 1 runMaterial (g)
Model 1102255.4
Model 2100250
Model 360 233
Comparison between models

So. If need to produce a lot of them Model 3 seems to be the way to go.

Model 3 – verkstan:

Advantages:

  • You can use 0.15 mm transparent A4 sheets ( or A3 sheets ( we had a request for a larger shield to protect also a part of the chest ) )
  • No need for elastic band
  • Easy to make the holes
  • Easy to assemble
  • Fast print

Disadvantages:

  • Less sturdy than M1 or M2
  • Are not adjustable vertically ( this is a strong point for M2 )

Model 2 – Timisoara

If you need to be able to adjust vertical length of the transparent sheet this is the way to go.

Advantages:

  • Easy to use
  • Easy to change transparent sheet
  • No holes necessary
  • Works with both PETG and A4 transparent sheets

Disavantages:

  • Slower print time

Model 1 – Prusa

De facto standard when comes to open 3d printed face shield

Advantages:

  • Very good production standard
  • Easy to assemble

Disadvantages:

  • Requires PETG sheets to be laser cut ( there are some tests to adapt A4 sheets to them but holes are hard to do )
  • Requires elastic bands .

No matter what model is used, they all keep our doctors safer. So far we printed , manufactured and donated around 200 of them. Below some pictures from the field:

Model 3 -Verkstan

This model is the 3rd variation we try to produce and donate.

We tried to find a design that :

  • Can be printed fast
  • Consume as little material as possible
  • Can be used with 0.15 mm transparent sheets ( way more available on market )
  • Very easy to mount
  • transparent sheet to be very easy to be cut / mounted

We chose a model based on the work done by Verkstan (https://3dverkstan.se/protective-visor/).

STL files, 3d print informations:

STL file we use to print ( 2 in one print session): Direct link or you can find stackable ones on Versktan website.

It will take approx 33 grams of PLA to produce 2 pieces. This means that from 1 kg of PLA we can print 60 pieces. Print time: 1h for 2 pieces.

Assembly instructions:

It take like 30 seconds to assemble it and can be done by anyone:

How to make the holes and cut the transparent sheet

You will need 2 hole punch and scissors. ( We have this: https://www.leitz.com/en-nu/products/hole-punch-leitz-5005-nexxt–2-hole-25-sheets_50050035/ and a normal scissors).

  1. First you need to set the hole puncher to A6:
  2. Punch holes, turn the sheet on the other side and punch holes
  3. Round the upper corners with scissors
  4. For the lower corners use the below image as reference

How we package them ?

Usually we pack 4 of them in a kit and final assembly is done on site. This saves space and transport fees. We also add a printed paper with instructions, production date and statement that this are donation and not for sale.

Good news / bad news

Bad news first: There is an acute shortage of 0.5 mm transparent PETG sheets in the romanian market.

So we have to adapt / improvise and work we what we can find.

Good news: We switched production to another face shield design that can be used with materials that can still be found.

Model we chose is a remix done by Maria Sgîrcea from Timisoara:

This model can be easily printed. 2 pieces in 1h and 41 minutes , 49 grams PLA used .

STL file here: https://www.thingiverse.com/thing:4246224

Or you can download them from here ( there are some moments when thingieverse doesn’t work so well ).

We are gathering the feedback from medics / lab users in here ( romanian version ): https://docs.google.com/document/d/1mVFrjCFx09vuiuseI7l0PlXwUXNxlncmYf4FLTI3OMk

A production guide will be available soon thanks to our friends from FOR and FabLab.

To complete build of this you need the 3d printed part, an A4 transparent sheet ( the one we are using now are:

And some rubber band.

And here is how you assemble them:

Assembly instructions

Here some of our results: