Summary:
I just bought these Sharpies and realized I needed a larger holder.
https://www.amazon.com/dp/B07DPLQJVN
https://www.amazon.com/dp/B0CRLHDX1N

So, I remixed "Sharpie Marker Holder" from FullSendFab to hold 40ct markers. I've also included the Solidworks 2020 reworked model files for your modifications in case you need more capacity. For those of you that don't use Solidworkks, I've also added step files.

Original Thing:

• https://www.thingiverse.com/thing:4879169

Changes from the Remix:

• Increased the number of markers held from 27 to 40.
• Converted the dimensions to inches for my fellow freedom unit users.
• Decreased pen holder diameter from ~0.486" to 0.453" (29/64") for the tiered version. This is because the holes are 1.5" deep and the markers are tapered down from ~0.444" (@ 1.5" from bottom) to 0.305" at the bottom. This gives ~0.010" clearance for hole shrinkage and a tighter fit.
• Added a version with tiers to help with picking out a specific marker.

If you print this please share it as a make with a photo!

Notes:
This is for the original Sharpie pens. If you use other versions, you may want to increase the hole sizes to help with fit.

Creality

Ender-3 V3 KE

Yes

No

0.2

10%

• The raft may be needed to help warping of the bottom and for better bed adhesion
• Number of walls = 2