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 Subject : Re:Re:Re:Support Removal for J750 Printed Parts (Support material 706B.. 12/20/2019 11:05:21 AM 
STACY ABEL
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Subject :Re:Re:Re:Support Removal for J750 Printed Parts (Support material 706B)

yes, we run at 50 degrees as well.
 Subject : Re:Re:Support Removal for J750 Printed Parts (Support material 706B).. 12/20/2019 10:20:09 AM 
Ernest Ang
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Hi Stacy,

Thank you so much for the quick response, that is very helpful!

We have already mixed the same concentration as our FDM bath and it seems to be working for our first actual print. We got a new larger Support Cleaning Apparatus for our J750 parts, so the smaller older one is reserved just for our FDM parts now, thank you for the extra note that we shouldn't mixing them together.

We usually use 70 degree for our FDM parts, and is currently using the lowest heat available on the bath which is 50 degree for the J750 parts, may I ask what temperature do you use for cleaning the J750 parts?
 Subject : Re:Support Removal for J750 Printed Parts (Support material 706B).. 12/20/2019 07:34:56 AM 
STACY ABEL
Posts: 5
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Hi Ernest,

We use the same mixture/bath as with our FDM parts; it works great but have never tried the 2%/1% mix so can't give you a comparison.

The only things to note would be that when we do clean J750 parts, we try not to process FDM parts again until we drain the system and start fresh again (the 706B will leave residue in the system.)
Also, make sure you turn down the heat before you drop in your J750 parts or they will warp quickly.

Best of luck!
Stacy
 Subject : Support Removal for J750 Printed Parts (Support material 706B).. 12/19/2019 03:52:58 PM 
Ernest Ang
Posts: 40
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Hi APMMers,

Stratasys just finished setting up our new J750 Printer so we are really excited to try it out but we didn't get enough information on removing the support material (706B) on the printed parts.

So for any J750 users in the forum, what we were told is that we can use the same WaterWorks P400SC solution that we mix into the Support Cleaning Apparatus for removing support for our FDM printer the F170 printed parts, but instead of putting 10% of it, we can just use 2% of the solution. However, from all the manuals that we found for removing the 706B support material, it indicates that we will need 2% of sodium hydroxide and 1% of sodium metasilicate for the solution (which both were included in the P400SC solution but 60-70% of the solution also includes sodium carbonate). So we are trying to find out whether the P400SC in a lower concentration is good for removing the 706B support or do we need to get pure sodium hydroxide and sodium metasilicate for removing the support.

Any advice is greatly appreciated. Thank you so much for your help!
 
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