Reprap - Modified Filament Feed

I have been getting lesser quality prints recently for one reason or another, however, today I seem to have addressed the worst issue.

After replacing the hotend I found my hobbled bolt had lost some teeth. I purchased a newer style bolt, produced using the tap method rather than the cut thread method.

Bolt Made Using Tap Method

The new bolt didn't seem to be gripping too well and i was starting to think that the guide bearing couldnt apply enough pressure to the filament to properly engage the bolts teeth.

I stripped down the extruder to find that the retaining rod that holds the bearing in place seemed to be pressed up tight against the bearings of the bolt, no letting it engage fully.

Original Retaining Rod

After filing down the retaining rod and reassembling the wade extruder it seems to be working fantatically well and i am super chuffed (for now).

Filed Retaining Rod

I printed a new Large Wade Gear which came out much better than previous attempts. 

New Large Wade Gear 

RepRap - New ParCan V2 installed

The new parcan hotend is a great design, in that it is much easier to secure to a standard wade extuder.
In this case attachment is achieved by way of two M3 x 40 bolts through the extruder cold end.

I am still struggling with calibration of the reprap prusa build but this new hotend will remove the issues I had with the wobbly old one.

I have managed to print a new big wade gear which came out OK, still some work required with the extruded steps I think and maybe a new hobbled bolt design.

Photo Showing the M3 x 40 retaining bolts

Photo of the first print from the new ParCan hotend