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How to slow down the X/Y printing during fill?- SOLVED

Posted: Tue Apr 12, 2016 4:43 pm
by JasonA
It seems that during fill, rect or oct, the rate is SUPER HIGH and causes the bed to shake and the whole machine :shock: (this is on a FFCP which is a pretty solid unit)

One post on the FFCP forums mentioned to "slow down your X/Y fill and speed rates"... but the only thing I can find in S3D is the "non fill X/Y rates"

Is this correct?

Thanks!

Re: Is there a way to slow down the X/Y printing during fill

Posted: Wed Apr 13, 2016 2:59 am
by KC_703
Have you tried the "Solid Infill Underspeed" setting? It may not help with shake when filling in walls...

Re: Is there a way to slow down the X/Y printing during fill

Posted: Wed Apr 13, 2016 4:01 am
by dkightley
S3D uses one setting as the "default" printing speed....and then bases all other printing speeds as a percentage of that speed.

The "default" printing I believe is the infill speed....so to slow down the infill speed, you just need to adjust the default speed. You may then need to increase all of the other speed percentages to compensate for the lower overall speed.

Re: Is there a way to slow down the X/Y printing during fill

Posted: Wed Apr 13, 2016 10:45 am
by wfcook
I sure wish I could just set the speeds directly instead of having them all be relative to the infill speed.

Re: Is there a way to slow down the X/Y printing during fill

Posted: Wed Apr 13, 2016 10:56 am
by JasonA
Yeah, I'm used to RepG's speed of 40-90 "mm/sec" :? so when I translated that over to S3D... I kinda bonked that up :roll: DUH!

So I'm trying 2400mm/min rate (60mm/sec) and leaving everything on 100% and dialing down from there for what I need.

Ultimately I think I need to do the Z wobble bed upgrades to the FFCP because I can see the slop during moves. Something my "Woody" has no issues with.

Thanks for the tips! I'll post a pic here in a bit

Re: Is there a way to slow down the X/Y printing during fill

Posted: Wed Apr 13, 2016 6:26 pm
by KC_703
wfcook wrote:I sure wish I could just set the speeds directly instead of having them all be relative to the infill speed.
Just a little math... default speed * percentage = actual speed. :) Or desired speed / default speed = percentage

JasonA wrote:Yeah, I'm used to RepG's speed of 40-90 "mm/sec" :? so when I translated that over to S3D... I kinda bonked that up :roll: DUH!

So I'm trying 2400mm/min rate (60mm/sec) and leaving everything on 100% and dialing down from there for what I need.

Ultimately I think I need to do the Z wobble bed upgrades to the FFCP because I can see the slop during moves. Something my "Woody" has no issues with.

Thanks for the tips! I'll post a pic here in a bit
If you want to use mm/s, look in Tools -> Options... change from mm/min to mm/s.

Re: Is there a way to slow down the X/Y printing during fill

Posted: Wed Apr 13, 2016 7:20 pm
by JasonA
Awesome! thanks for all the tips! So I just got home and I'm still running into this issue on this printer... I don't know if because of FF used a standard ACME screw for the Z and not metric ??

http://www.toybuilderlabs.com/blogs/new ... yer-height

another great post...
https://www.evernote.com/shard/s211/sh/ ... dcdd2d687e

Even if I go SUPER SLOW on a cube I still get lines... so I'm thinking instead of .2 for layer... try 0.1905 or 0.22225 ???

Any thoughts?
Image

Re: Is there a way to slow down the X/Y printing during fill

Posted: Wed Apr 13, 2016 11:50 pm
by Sdigs
Check out this site. It will help you calculate the optimal layer heights for your setup.
http://prusaprinters.org/calculator/

It may help you figure out what is going on

Sdigs

Re: Is there a way to slow down the X/Y printing during fill

Posted: Thu Apr 14, 2016 10:13 am
by JasonA
Thanks! On the FF forum, they recommended that I take off the "printed" spool holder I made for the eSUN reels/spools (they don't fit on the stock FFCP holders) and put back on the OEM holder and try the stock ABS that came with the unit.

They think it's the slop in the causing extruder issues... so I'm printing again right now to see what happens. One thing to note and I can't remember, I let it load for like a min and measured the extruded filament. I'm reading .64

Not .40 or anywhere close, is this right? Maybe this is the reason I'm over extruding?

P.S. OHH!! I edited my SailFish parameters so now the "jerk" is gone 8-) it prints smooth but the lines are still there hence the spool change.

Re: Is there a way to slow down the X/Y printing during fill

Posted: Thu Apr 14, 2016 11:55 am
by wfcook
KC_703 wrote:
wfcook wrote:I sure wish I could just set the speeds directly instead of having them all be relative to the infill speed.
Just a little math... default speed * percentage = actual speed. :) Or desired speed / default speed = percentage
No, not just a little math, because if I want to change the infill speed I have to recalculate all the percentages every...single...time. It's a royal pain in the butt. And it frankly makes no sense to have the perimeter speed and the infill speed proportional to each other. The effects of speed change are nonlinear.