Replace stamped sheet metal mount between Extruder and linear slide saddle with a machined aluminum mount incorporating alignment features to reduce bounce in nozzle when short quick movement in print head occurs.
Another benefit of this replacement part is there appears to be less ABS fume smell produced, I can only theorize that when the extruder bounced along with the old mount part it would scape up ABS and continually burnt it.
Also it was surprising how much quieter the printer is, there was a lot of rattling going on that is now absent.
Here is where I have posted the files to make this.http://www.thingiverse.com/thing:16710
After a day of printing with this I am amazed at the performance upgrade, this is one of the most significant replacements I've done next to the self adjusting pressure roller.
1. the printer has never been so quite, that buzz and rattle when it moved in a short jagged path, gone.
2. the first layers do not get plowed by the nozzle when it needs to jump over to a new area, this may mean if there is no lift there will be no pushing off the part from the build layer.
3. when doing finer motions I get a smoother looking outer wall, not as many stray noodles poking out or creases where a repetitive motion causes a vibration throwing off the path of the nozzle.
4. I no longer worry that when changing colors if I tug out the filament or press it in too hard I might bend the old mount a small amount throwing off my "Z" setting.Good News Everyone!
The tool maker that made my parts has finally given me a quote for the new machined aluminum "Extruder Mount", he is quoting $150.00
per part if we get a minimum of 10 orders.
To make it clear I sent this part out to several Machine shops the company I work for does business with and we got quotes of an average of $265.00
per part, this is even with the enormous discount they give my company on parts.
This a really great deal and I've had great experience with this part on all three machines I work with (I have one and my company bought 2).
So if you want your printer to perform at its best I recommend this part.
Please drop me an email if you want one and I will start the list.
Here is a great example of why you need to make this mod.viewtopic.php?f=3&t=841&p=6081&sid=bdcda38766bb69cabebddaaf28f79f59#p6078