Safety Wedge For BentoTurbo

After installing Turbo Bento (TB) - screwing it to the bottom of the chamber – you may find you have a problem. Whole Bento may tilt toward the build plate. Even in ideal conditions (when Bento is completely straight/level), there is not much space between it and the build plate. As TB is very tall, even a small tilt of the base means an unpleasant shift at the top. So, the top of TB may get too close to the buildplate, which moves up and down, and it is only a matter of time before they collide (yes, it may not happen, but it can .. and you definitely don't want that to happen …)

Important notice - this is NOT a problem of TB model or its design, nor is it a problem with the print profile or the print itself. The only source of problems here is the plastic bottom of the chamber, which is not designed for such purpose - the plastic is thin and flexible, it twists in all sorts of ways - it definitely does not provide an ideal base. It is a matter of luck where and how much it twists in your particular case. In my case, the resulting space between the buildplate and the top of Bento was barely 2 mm, which made me quite nervous and I did not accept it.

By the way, by tightening the screw more, you make the situation worse - the plastic bottom will warp even more (plus there is only one screw and it is on the "wrong side") - the unwanted tilt of the TB increases and the space between it and the build plate decreases even more. The fix would (perhaps) be to use double-sided adhesive tape and attach the "back" of the Bento to the wall, but I didn't want to use adhesive tape considering the temperatures at which I sometimes print – it's a question of when the tape will come loose and what would happen then.

I chose a different solution - simple, but it seems to work great - a small wedge that slides under the TB base from the front and deflects the entire model in the direction you need - backward, toward the wall, away from the build plate. An added bonus is that after tightening, the entire attachment becomes more rigid – at least in my case, it seems much more stable.

The model itself is pretty simple (I made it for myself and only then realized that it might be useful to someone else). You won't find any "self-serving parades" or logos there. It's not elegant – most of it isn't visible anyway :-), but it works for me. You need about 5g of filament and 15 minutes of printing, that's all.

There are two versions available in the profile, differing in slope – the smaller one has a front edge of 1 mm, while the taller one has 2 mm and provides greater deflection. Choose the one that will give you better results according to your needs. In my humble opinion, if even the 2 mm version is not enough for you, it would probably be better to solve the problem in another way.  Choose the filament with regard to the temperatures at which you are printing - the best choice would be the same material you used to print the Turbo Bento itself.