Under Desk/Shelf Keyboard holder - 3 options for install, no supports needed

Continuing with my living room/streaming gear organisation, here's the keyboard holder I designed for my Logitech MX Keyboard. Due to lack of space I needed a holder that would fit front to back on my shelf (as pictured)

It's a universal design so should fit a variety of keyboards (see below for internal measurements to check if yours fits!)

It has three install positions depending your needs. Lengthways (as pictured), rotated to install front facing (left to right) or installed on a vertical wall 

Note: It was designed for the keyboard to slide perfectly out the end of the holder, you can remove it over the side, but the current design is not quite as smooth for this. The small amount of flex in the design allows for removal but I've added design notes for future versions below and can provide a different version if needed!

As always, please share any makes or comments! As a newer designer I'd love to hear the pros/cons of any of my designs! Happy printing!

EDIT: The holder on the top left of the photos is for my Elgato Capture Card - model is on my profile. 

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Design features

• 3 install positions - lengthwise (front to back of desk/shelf), front facing (left to right), wall install
• Single unit for smooth use (no fumbling making sure its perfectly level when you put it back unlike with some 2 part holder designs!)
• Secure damage resistant design - difficult in any install position for keyboard to be knocked and fall out, making it more suitable for tight fit under/side desk installs compared to 2 part ‘hook holder’ style designs
• Countersunk screw holes x 4 -  preventing damage to keys
• Larger holes on base providing access for a standard drill or screwdriver bit, making for easier install

Internal measurements - check if your keyboard fits:

• Width - 150mm
• Height - 26mm max (for keyboard feet) 

Print notes:

• PLA
• No supports needed
• Place end on print bed for increased strength
• Bambu Carbon - 133g filament & 3hrs on extra draft
• Consider which install position you are using when orientating on the print bed. My first print, I had the end that would be facing outwards as the first layer, so it had some of the glue/brim marks on it. In future I would simply flip which surface was on the print bed and then for lengthwise install iron the topmost surface for a sleeker look

Install notes:

• Countersunk holes are M3 (3.4mm diameter, 6.72mm for screw head)
• Most secure install - use screws
• Desk/shelf installation - I used 3x16mm universal screws directly screwed into the shelf
• Wall installation - predrill holes and use suitable wall plugs.

• Other install methods (untested) - Renter-friendly option? I strongly suspect that Command strips could easily be used on this but this is untested! I do have trouble with the strips staying attached to the PLA. Reddit suggests using the velcro strips, as well as supergluing the strip that attaches to the holder. Test with something unbreakable first! Then let us know how you get on if you use this method! (Comments also welcome if you know how to use command strips to long term attach PLA to things!)

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Designer notes for future versions:

• Create hole at either end for fingers to help gently slide the keyboard out from underneath rather than needing to pinch the end. Will also eliminate any issues if the keyboard is pushed in to far. 
• Design honeycomb model for reduced filament use without compromising strength (comments welcome on how to do this!)
• Create a front facing version - Increase clearance to allow for easier removal from side
• If requested, reduce overall length of holder for reduced filament use