Three Dee Thread

[Lorenzo]

And this Is another approach; using this technology to make the mould for the final part:

this are the two halves of the mould, into which, silicone for instance, can be poured.

 

[Lorenzo]

From this short video, you can glean a better view:

 

[Lorenzo]

And for the enthusiastics, this is a preview of the printing head path; I could keep watching for ages...

 

[Lorenzo]

Must confess this part, despite looking relatively simple, it's going the upward steepy way, but we're almost there...

 

[Lorenzo]

While printing



​It seems we eventually got there !

the airbox face being curved and with differing angles, made It a Little daunting;



​​​​​​​

 

[Lorenzo]

printing done;
you can see, in the left side of this pic, a sort of wedge, the slicing software add, as it sees fit, as a strategy of making possible to print in overhangs.

 

[Lorenzo]

from the side, it can be appreciated the fitting of the edge, very adherent to the box contour:

 

[Lorenzo]

https://youtube.com/shorts/9nZ1kv-YzxY?si=R2cY96aQ7ExlFxK4

All of the criss-cross patterned area (the support) will have to be removed and the surface refined.

 

[Lorenzo]

It's Amazing how, by changing the side in which the object Is printed, we can control the exterior outcome of the print itself. In this case, the support material, tedious to remove, will be on the back, so not visibile, thus requiring less finissage.

 

[Lorenzo]

Another little item, that despite the simple look, took me more tries than I'd bargained for; this occurred due to the extreme finesse of the arbor splines, which I could not measure (nor the arbor size) being it, in a recessed position;

TRIP RESET KNOB that is

 

[Lorenzo]

on this pic, the 'innards' can be seen

 

[Lorenzo]

​...also, the 'negative' of the splines, on top, need be so small, that in some sizes they just didn't print (we're looking at 0,45mm - 1.771654in -).​But in the end, I managed to get it about right.
That's a PLA prototype as it came out of the printer

 

[Lorenzo]

Time for another add up:
sick'n'tired of this

 

[Lorenzo]

So I made this:

 

[Lorenzo]

Woops bit over the top with paint

 

[Lorenzo]

Scrub it off, looks better

 

[Lorenzo]

Detail of the embossed lettering:

 

[Lorenzo]

The part, were it belongs to:

 

[Lorenzo]

Next one I could make the letters RWU ...