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Inversed Timing Belt transmission

I had an idea for a compact gearing mechanism the other day. It is light, compact and has no backlash (that I've noticed). The next step is to see how it behaves under load. The inner pulley is 20 teeth, the outer ring is 120 teeth, the belt is 150 teeth.

I have only found this mentioned in one place, in the conference paper "ePaddle mechanism: Towards the development of a versatile amphibious locomotion mechanism". Please let me know if this is more well-known through another name.

(2019-03-12)

Top-down resin 3d printer

Top-down resin 3d printer

The idea is to use a pocket of air to keep the surface level of the resin constant throughout the build, guaranteeing consistent layer heights. In addition, the higher pressure might ease reflow of resin after dipping? 

High print speeds might be possible if the pocket is filled with pure oxygen gas that inhibits resin hardening at the surface. The focus point of the projector should then be slightly below the surface of the resin. As the resin solidifies slightly below the surface and is pulled down by the platform, new resin flows in from all sides (ideally) undisturbed by the effect of surface tension.

(2015-09-24)

Inversed Timing Belt transmission

I had an idea for a compact gearing mechanism the other day. It is light, compact and has no backlash (that I've noticed). The next step is to see how it behaves under load. The inner pulley is 20 teeth, the outer ring is 120 teeth, the belt is 150 teeth.

I have only found this mentioned in one place, in the conference paper "ePaddle mechanism: Towards the development of a versatile amphibious locomotion mechanism". Please let me know if this is more well-known through another name.

(2019-03-12)

Top-down resin 3d printer

The idea is to use a pocket of air to keep the surface level of the resin constant throughout the build, guaranteeing consistent layer heights. In addition, the higher pressure might ease reflow of resin after dipping? 

High print speeds might be possible if the pocket is filled with pure oxygen gas that inhibits resin hardening at the surface. The focus point of the projector should then be slightly below the surface of the resin. As the resin solidifies slightly below the surface and is pulled down by the platform, new resin flows in from all sides (ideally) undisturbed by the effect of surface tension.

(2015-09-24)

Inversed Timing Belt transmission
Top-down resin 3d printer