Oral-B iO / toothbrush holder (upside down)

Are you tired of that nasty residue building up at the bottom of your electric toothbrush? After brushing, water inevitably runs down the handle, leaving limescale and toothpaste gunk in the charger or on your shelf.

This holder solves the problem by storing the toothbrush upside down.

Key Features:

• Hygienic Design: Excess water drips directly from the brush head into a replaceable pad or tray, keeping the handle perfectly clean.
• Dishwasher Safe: Designed to be printed in ASA, making it heat-resistant enough to be cleaned in the dishwasher.
• Smart Integration: You can still plug the charger into the top of the brush while it sits securely in the holder.
• Print-and-Go: This model is engineered to be printed without any supports and requires zero assembly.

Print Settings & Tips:

For the best results—especially when using technical materials like ASA—I recommend the following:

• Material: White ASA (for UV and heat resistance) but works with every material.
• Supports: Not needed.
• Pro Tip for Warping: I printed this on a BambuLab P1S. I highly recommend preheating the printer's chamber for a bit before starting to minimize internal stress and warping.
• Infill: 15–20% works perfectly.

Maintenance & Water Management:

Since the water now drips downward, I recommend placing a simple cotton pad underneath the holder but I use it without one. It absorbs the moisture effectively and can be replaced in seconds every few days. Sometimes you have to clean it with hand or with the dishwasher. 

Interested in a matching drip tray? I have already designed a dedicated drip tray that fits perfectly at the base. If you would like me to publish it, please let me know in the comments, and I’ll upload it as an add-on!

Happy printing and enjoy a cleaner bathroom setup!