Bondtech DDG V2 upgrade for 2+ for printing TPU

[kpporsche 0]

Hi guys,

 

Has anyone fitted the Bondtech DDG V2 as an upgrade to a 2+ ??

 

I have just got a little 2+ (with only 12 hours use on it!!) mainly to try to print TPU for some projects, but the prints seem to be under extruding and look very poor quality. It is a brand new roll of Ultimaker TPU that I have dried twice and kept in a sealed container etc, thought I had read somewhere on here about this upgrade, but can't seem to find the post now

#

#Any help or advice would be gratefully received

[Torgeir 289]

Hi @kpporsche,

 

Welcome in here.

 

The posting you're looking for is here:

 

 

Good luck

Torgeir

 

 

 

 

 

[kpporsche 0]

Many thanks Torgeir, I'll have an in depth look at that set up

[Torgeir 289]

Hi @kpporsche.

 

Hmm., you probably want some tip about printing with TPU using UM2 types..

 

@gr5 have lots of stuff about printing with UM printers.

 

See this one and his posting 2nd of February 23.

 

 

 

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Posted February 23 · The Mighty UM2go

By the way, I've printed ninjaflex (extremely flexible) on a UM2 series.  It involves some tricks.  One of which is to put a drop of oil on the filament before inserting into the bowden and adding an additional drop every meter or so (about once per hour).  I have more explicit instructions on this forum.  90% of people hate the idea of oil going through the nozzle and think it will do something bad like add holes in the print or something but it works perfectly.  Perfectly! Trust me. Other things I had to do to get zero underextrusion was to slow down to 10mm/sec (only if you need it absolutely perfect print) and print on the high-side of the recommended temp range.  And lots of fan.  Also I had to up the flow rate.

 

 

 

 

[kpporsche 0]

Thanks for the reply, sorry only just noticed it as I've been away for a few days