Revised handy handsfree cup - deeper nut hole and thicker topface

This is a revised remixed version of the official handy hands-free cup.

The original can be found here -

https://www.thingiverse.com/thing:5813628

This revised version was previously on Thingiverse - https://www.thingiverse.com/thing:6615729

Improvements:

• Thicker not to crack up under pressure
• Deeper nut hole for no nut to handy top cap
• Base layer at a minimum of roughly 1.8mm thickness to allow exposure of 4.2mm of the roughly 6mm threaded screw end from 1/4 20 magic arm without touching the top cap.

Print with petg and plenty of infill - between 20 and 50% at least; a layer of raft and tree s enabled too.

The point of this is to prevent the roughly 6mm threaded bolt end of a magic arm from digging into the topcap of the handy and also to thicken up an area that can crack up from overtightening.

This also allows for use with the more common 6mm height unc nuts that will fit in better to this revised version. A 4mm thin nut could be used with the original however, it may still suffer from cracking up.

This revised version utilises more thread on the bolt end as after the 1.8mm base layer of print, followed by a recommended thin 4mm hex nut unc 1/4-20 adds up to 5.8mm of the 6mm bolt end being used with some tolerance factored in too. This means that the whole thread is utilised and surrounded than allowing for any to be loose or sticking out uned that can lead to a fracture point and crack.

• This is more so evident for cheap 3/8 to 1/4 adaptors as used commonly with tripod arms than magic arms but can still demonstrate the weak point on the threaded bolt end when not fully utilised or when overtightened.

Use of this revised version with a 6mm tall nut also allows for a better hold and less likely cracking up due to thicker material usage.

I have added the 3/8 nut version too for direct mounting to other tripod and magic arms that use a thicker 3/8 threaded bolt end so no 3/8 to 1/4 adaptors will be needed to reduce that potential cost and failure point too.

I have also added a hollow hexagon nut surround so that the 3/8 nut version could be converted to use a 1/4 nut and threaded bolt if needed.

This is a digital — No physical product is included.

You’ll get the STL file to print your own mount at home or through a local 3D printing service such as

https://craftcloud3d.com/

and you can get 10% off with this referral code:

REFKJ7PW3K8

I do however recommend getting yourself a 3d printer to print as you wish - Bambu Labs A1 mini, A1, P1S, X1C but note you will need other related stuff too like micro wire cutters, an air filter and possibly a dehydrator for quality prints than wet stringy ones.

Important:

You are responsible for printing and assembling it yourself. By ing and using this design, you agree that I’m not responsible for any damage, injury, or issues caused by improper use, modifications, or printing quality. Use it safely and responsibly.

Enjoy

[This is not an official handy product]

Image of 6mm nut visible between handy topcap and 3d printed original handy handsfree cup was from a recent reddit post from a handy community member, used here just to illustrate the issue and how it has been revised here to be better serving fingers crossed.

You could of course just buy the handsfree cup directly from handy or via amazon for a quality made product that includes a 1 year warranty with which "IF" it were to crack during use, you would be entitled to a free or discounted replacement that has a stronger and better blend in its plastic to be stronger. I believe the stronger version is provided under warranty purposes only and is not for sale yet as the issue of cracking on the handy hands-free cup only affects some but not all due to factory variability in manufacturing processes - i.e. 1 in 10 crack - Not an actual statistic - more of a vicariously experienced and educated estimate.

petg fdm 20 to 100% infill

MJF printing with pa12 shot peened