# Cura LE 3.6.4 not changing Flow from Initial Layer Flow Rate

**URL:** <https://forum.lulzbot.com/t/cura-le-3-6-4-not-changing-flow-from-initial-layer-flow-rate/6582>\
**Category:** Software\
**Created:** [March 13, 2019, 1:36pm UTC](https://forum.lulzbot.com/t/cura-le-3-6-4-not-changing-flow-from-initial-layer-flow-rate/6582 "2019-03-13T13:36:18Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![khaoskosmos](https://avatars.discourse-cdn.com/v4/letter/k/dbc845/32.png) [@khaoskosmos](https://forum.lulzbot.com/u/khaoskosmos)\
**Post date:** [March 13, 2019, 1:36pm UTC](https://forum.lulzbot.com/t/cura-le-3-6-4-not-changing-flow-from-initial-layer-flow-rate/6582/1 "2019-03-13T13:36:18Z")

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I noticed that when I set a specific flow rate for the first layer, the entire model will pint at that flow rate (observed on the LCD and in the gcode as there is only one m221). I do not have Equalize Filament Flow turned on.

I worked around the problem using a post processing script under Extensions -\> Post Processing -\> Modify G-code and adding a TweakAtZ on layer 1 to set the flow rate to 100. I verified the m221 s100 was after layer 0 and before layer 1 (you could even do the fist couple layers at a higher flow rate this way).

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**Author:** ![khaoskosmos](https://avatars.discourse-cdn.com/v4/letter/k/dbc845/32.png) [@khaoskosmos](https://forum.lulzbot.com/u/khaoskosmos)\
**Post date:** [March 13, 2019, 3:10pm UTC](https://forum.lulzbot.com/t/cura-le-3-6-4-not-changing-flow-from-initial-layer-flow-rate/6582/2 "2019-03-13T15:10:17Z")

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Well, the m221 s100 is present at my desired layer in the g code, but according to the lcd, my feedrate stayed at 103% and did not change to 100% (I let it run for many layers after the m221 s100)

The line calls up T0 (M221 T0 S100) does that matter? I assumed this was for multiple extruders as each tool code i.e. T0 for 1st extruder T1 for second, but there are no other T blocks in the entire program.

Edit:  
This may be the mistake. I accidentally selected “Tweak Flow Rate 1” instead of just “Flow Rate”. The difference is Tweak Flow Rate 1 generates a tool number T0 on the line, and Flow Rate does not (I thought I selected flow rate, but perhaps I got a little click happy). Going to try on the next print…

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**Author:** ![khaoskosmos](https://avatars.discourse-cdn.com/v4/letter/k/dbc845/32.png) [@khaoskosmos](https://forum.lulzbot.com/u/khaoskosmos)\
**Post date:** [March 13, 2019, 4:28pm UTC](https://forum.lulzbot.com/t/cura-le-3-6-4-not-changing-flow-from-initial-layer-flow-rate/6582/3 "2019-03-13T16:28:26Z")

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Update, that fixed the issue with the workaround. It would be nice if the feature worked as it is intended though.

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**Author:** ![mnemosyne](https://avatars.discourse-cdn.com/v4/letter/m/c4cdca/32.png) [@mnemosyne](https://forum.lulzbot.com/u/mnemosyne)\
**Post date:** [March 21, 2019, 6:04pm UTC](https://forum.lulzbot.com/t/cura-le-3-6-4-not-changing-flow-from-initial-layer-flow-rate/6582/4 "2019-03-21T18:04:09Z")

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Just ran into this as well. I’m finding it quite impossible to get high quality prints with this version of Cura. ☹ Will try to make this workaround happen.
