<![CDATA[SoliForum - 3D Printing Community — PLA and Vegetable Oil]]> 2015-02-19T03:16:30Z PunBB https://www.soliforum.com/topic/10066/pla-and-vegetable-oil/ <![CDATA[Re: PLA and Vegetable Oil]]> For my use,  the oil makes it worse

Thanks. Youve confirmed what I believed the prob.
I have printed PLA.
Setting the right temp along w/ the fan cooler speed is a fine line.
A "Load" filament is performed before starting a print or it will get stuck.

I made 2 sml heatsinks, mounted on the block, the next mod will be slitting the aluminum block to use as the heatsink.

]]> https://www.soliforum.com/user/7700/ 2015-02-19T03:16:30Z https://www.soliforum.com/post/86096/#p86096 <![CDATA[Re: PLA and Vegetable Oil]]> The thermal break is that threaded tube. It should have fins on it like all after market hot ends do if you want to do PLA. With the threaded tube as it is, it gets hot enough that the PLA will swell in it and jam in the tube. The motor on the extruder dies not have the torque to push it even though you may be able to by hand when it does swell.

The thermal break is supposed to separate the cold end from the hot end but the Da Vinci 1.0 technically dies not really have a cold end.

]]> https://www.soliforum.com/user/7731/ 2015-02-19T02:21:00Z https://www.soliforum.com/post/86082/#p86082 <![CDATA[Re: PLA and Vegetable Oil]]> Heres pics of the DaV hotend assembly, disassembled. Its a straight shot to the hotend. And you can see where the "guide tube" seals to the brass hotend. I measured the "well", before the nozzle entrance, its less than a mm.

http://voltivo.com/media/kunena/attachments/686/Hotenddav2.jpg


So where would the thermal break be ?

]]> https://www.soliforum.com/user/7700/ 2015-02-19T02:09:50Z https://www.soliforum.com/post/86079/#p86079 <![CDATA[Re: PLA and Vegetable Oil]]> knucklbustr wrote:

There seems be a reference of using a vegetable oil soaked wiper when printing PLA.
But never an explanation.

What exactly does this do ?

The theory is that due to PLA having a higher friction rating than ABS the oil is supposed to help it move through the extruder more easily. That's the theory. The fact is that the Da Vinci 1.0 was never made to handle PLA and the head is not made correctly with the proper cooling needed to keep the heat from creeping up into the thermal break and causing the PLA to swell before entering the heated area of the extruder and jamming.

]]> https://www.soliforum.com/user/7731/ 2015-02-19T01:27:51Z https://www.soliforum.com/post/86064/#p86064 <![CDATA[PLA and Vegetable Oil]]> There seems be a reference of using a vegetable oil soaked wiper when printing PLA.
But never an explanation.

What exactly does this do ?

]]> https://www.soliforum.com/user/7700/ 2015-02-19T01:13:05Z https://www.soliforum.com/post/86058/#p86058