MakiBox A6 - Pellet Drive Final Revision Design Direction

2021-07-13 16:56 by Jonathan Buford (comments: 0)

MakiBox A6 - Pellet Drive Final Revision Design Direction

These are a couple of early shots of how the revision of the pellet drive is going to be.

tl_files/img/MakiBox_A6_Pellet_Drive_Rev_First_Glance.JPG.scaled1000.jpg

tl_files/img/MakiBox_A6_Pellet_Drive_Rev_First_Glance_b.JPG.scaled1000.jpg

Major changes for this design so far are a further reduction in the gear ratio to hit an 8:1 gearing to get enough torque, the previous gearing was 2:1, and using windows of acrylic to show the gearbox and the pellets feeding in.

This kind of design work starts pretty slowly until the final direction is found, but now that the general feel and design queues are worked out, we can get this cranked out quickly and move on to wrapping up the development as a whole.

Other options that were looked into were various gearing combinations and arrangements and some different hopper designs.

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Comment

SolanGu (Twitter) responded:
 
With this kind of force you could maybe aswell grind the plastic into dust and then heat it into a string
My humble and uneducated suggestion for a pellet-to-string transformer would be to have a pool of hot melted plastic, with some wire-mesh halfway down into the pool, and a screw at the bottom, for extruding molten plastic through a nozzle and into string form

This way, the pellets would fall into the bath, land on the mesh wire and lay there until they melted, wich gently would feed the screw enough material to keep the string churning out

Many ways lead to Rome - and I am sure you will come up with a satisfactory solution, any day now :)

 
Jonathan Buford responded:
 

What we found is we need the pressure to get good output.

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