3D printing liquefier nozzle flexure for improved ironing

1. A system for providing a liquefier nozzle flexure to at least enable ironing of a 3D print, comprising:

a controllable print head for providing the 3D print;

a liquefier capable of liquefying deposit material for providing the 3D print;

the liquefier nozzle flexure having a first side proximal to the liquefier, a second side distal to the liquefier, and a top side mounted to the controllable print head only proximate to the second side of the liquefier nozzle flexure; and

a liquefier mount connection that operatively connects the liquefier nozzle flexure to the liquefier, the liquefier nozzle flexure extending solely from the first side of the liquefier nozzle flexure to a far side of the liquefier such that a distance between the controllable print head and the liquefier is allowed by the liquefier nozzle flexure to vary when a resistance is encountered at a print nozzle tip.

2. The system of claim 1 , wherein the resistance comprises contacting excess of the deposited material.

3. The system of claim 1 , wherein the resistance comprises collision of the print nozzle tip with an imperfection in the 3D print.

4. The system of claim 1 , wherein the flexing allows for the dispensed material to flow flat under force from the flexure.

5. The system of claim 1 , wherein the flexure comprises a load cell.

6. The system of claim 1 , wherein the flexure comprises a flexure mount fastened to the controllable print head via the top side of the flexure.

7. The system of claim 6 , wherein the flexure pivots at the flexure mount.

8. The system of claim 7 , wherein the pivoting flexure enables the liquefier to float up and down relative to the controllable print head.

9. The system of claim 1 , wherein the print nozzle is heated.

10. The system of claim 1 , wherein the controllable print head further comprises a hard mount of the print head to an X-Y axis motion control, and wherein the flexure is between the liquefier and the hard mount of the controllable print head to the X-Y motion control.

11. The system of claim 1 , wherein the flexure may be turned on and off.

12. The system of claim 11 , wherein the turn off comprises a pinning of the flexure to the controllable print head.

13. The system of claim 11 , wherein the turn on is automated.

14. The system of claim 1 , further comprising an actuator configured to apply a variable force to the flexure.

15. The system of claim 14 , wherein the actuator comprises a roller.

16. The system of claim 14 , wherein the actuator is pneumatic.

17. The system of claim 14 , wherein the actuator comprises a servomotor.

18. The system of claim 14 , wherein the actuator comprises a piezoelectric.

19. The system of claim 1 , wherein the flexure is not a load cell.

20. A system for printing a filament, comprising:

a print head;

a flexure mount connected to the print head;

a flexure comprising a flexible material, the flexure connected to the print head, wherein the flexure is positioned below the flexure mount and configured to pivot relative to the flexure mount;

a liquefier connected to the flexure, such that at least a portion of the flexure is between the print head and the liquefier; and

a print nozzle connected to the liquefier.

21. A system for printing a filament, comprising:

a print head;

a liquefier;

a flexure comprising a flexible material associated with a stiffness, the flexure operatively connecting the print head to the liquefier;

an actuator capable of adjusting the stiffness of the flexure; and

a print nozzle connected to the liquefier.