<![CDATA[SoliForum - 3D Printing Community — Diameter, Length and Temperatures for Drill Bit]]> 2020-08-20T03:18:17Z PunBB https://www.soliforum.com/topic/18660/diameter-length-and-temperatures-for-drill-bit/ <![CDATA[Re: Diameter, Length and Temperatures for Drill Bit]]> dr2020 wrote:

Hello!  I will build a filament extruder for PET plastic only and I will use a wood drill as a screw.  I am in doubt about the relationship between the diameter and length of the thread (L/D).  I am thinking of using a drill bit 18mm in diameter by 360mm in length (L/D = 20).  Is this an appropriate measure?  What about temperatures in the compression and melting zones? 

Sincerely Yours


Que tipo de broca utilizaras? Marca y costo.

Yo pienso utilizar una broca modelo DEWALT DW1687 1-Inch by 17-Inch, pero quisiera ver otras recomendaciones

]]> https://www.soliforum.com/user/24981/ 2020-08-20T03:18:17Z https://www.soliforum.com/post/153925/#p153925 <![CDATA[Re: Diameter, Length and Temperatures for Drill Bit]]> Look up available open source designs.
And why are you attempting to engineer your own when there are affordable kit options such as the filasruder

that said look here for some design guidance

https://wiki.opensourceecology.org/wiki … t_Extruder

]]> https://www.soliforum.com/user/6775/ 2020-06-13T09:51:59Z https://www.soliforum.com/post/153551/#p153551 <![CDATA[Diameter, Length and Temperatures for Drill Bit]]> Hello!  I will build a filament extruder for PET plastic only and I will use a wood drill as a screw.  I am in doubt about the relationship between the diameter and length of the thread (L/D).  I am thinking of using a drill bit 18mm in diameter by 360mm in length (L/D = 20).  Is this an appropriate measure?  What about temperatures in the compression and melting zones? 

Sincerely Yours

]]> https://www.soliforum.com/user/24673/ 2020-06-13T05:46:18Z https://www.soliforum.com/post/153548/#p153548