# F setting does not change feed rate (solved, use G1)

**URL:** https://forum.onefinitycnc.com/t/f-setting-does-not-change-feed-rate-solved-use-g1/17300
**Category:** Troubleshooting (X35/X50)
**Created:** [December 11, 2022, 2:55am UTC](https://forum.onefinitycnc.com/t/f-setting-does-not-change-feed-rate-solved-use-g1/17300 "2022-12-11T02:55:30Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![tgunr](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/tgunr/32/10947_2.png) [@tgunr](https://forum.onefinitycnc.com/u/tgunr)
#### Post date: [December 11, 2022, 2:55am UTC](https://forum.onefinitycnc.com/t/f-setting-does-not-change-feed-rate-solved-use-g1/17300/1 "2022-12-11T02:55:30Z")

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Finally got my 1F all setup and was trying some settings to get a feel for the machine. After home and successful Z probe I set the Z up a bit `G91 G0 Z10`

I moved the X over a bit `G0 X100 F100` expecting a nice slow 100mm/m movement but instead it only took about a second.

So I tried `G0 X100 F10` with same result and `G0 X100 F1` same same.

Tried `G0 X100 F500` still looks. to be about a second.

Am I missing something? I certainly am not going to run any gcode until I can control the feed.

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### Author: ![Hermsen.BJ](https://avatars.discourse-cdn.com/v4/letter/h/779978/32.png) [@Hermsen.BJ](https://forum.onefinitycnc.com/u/Hermsen.BJ)
#### Post date: [December 11, 2022, 3:02am UTC](https://forum.onefinitycnc.com/t/f-setting-does-not-change-feed-rate-solved-use-g1/17300/2 "2022-12-11T03:02:46Z")

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Longer movements will get faster. It has fairly modest acceleration setting out of the box.

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### Author: ![tgunr](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/tgunr/32/10947_2.png) [@tgunr](https://forum.onefinitycnc.com/u/tgunr)
#### Post date: [December 11, 2022, 3:17am UTC](https://forum.onefinitycnc.com/t/f-setting-does-not-change-feed-rate-solved-use-g1/17300/3 "2022-12-11T03:17:30Z")

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100mm is long? If I set F100 I expect 100mm/m, at least this what I see on my other CNC machines.

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### Author: ![tgunr](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/tgunr/32/10947_2.png) [@tgunr](https://forum.onefinitycnc.com/u/tgunr)
#### Post date: [December 11, 2022, 3:19am UTC](https://forum.onefinitycnc.com/t/f-setting-does-not-change-feed-rate-solved-use-g1/17300/4 "2022-12-11T03:19:14Z")

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Could someone enter `G91 G0 X100 F100` and tell me how long it takes to move 100mm?

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### Author: ![tgunr](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.onefinitycnc.com/tgunr/32/10947_2.png) [@tgunr](https://forum.onefinitycnc.com/u/tgunr)
#### Post date: [December 11, 2022, 3:34am UTC](https://forum.onefinitycnc.com/t/f-setting-does-not-change-feed-rate-solved-use-g1/17300/5 "2022-12-11T03:34:23Z")

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NM, now I see. On my other machine using GRBL. Using G1 on 1F instead of G0 is working as expected.

Whew!

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### Author: ![349iq2345](https://avatars.discourse-cdn.com/v4/letter/3/bb73d2/32.png) [@349iq2345](https://forum.onefinitycnc.com/u/349iq2345)
#### Post date: [December 11, 2022, 4:38pm UTC](https://forum.onefinitycnc.com/t/f-setting-does-not-change-feed-rate-solved-use-g1/17300/6 "2022-12-11T16:38:57Z")

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Hey Dave,

this is by intention. [G0 (Rapid Move)](https://linuxcnc.org/docs/html/gcode/g-code.html#gcode:g0) does not honor feed rate, [G1 (Linear Move)](https://linuxcnc.org/docs/html/gcode/g-code.html#_g1_linear_move) and other movement commands do.

(The Onefinity Controller is a hardware and a software [fork](https://en.wikipedia.org/wiki/Fork_(software_development)) of the [Buildbotics Controller](https://buildbotics.com/), and the [g-code](https://en.wikipedia.org/wiki/G-code) used by the Buildbotics controller was [patterned after the LinuxCNC g-code](https://forum.buildbotics.com/viewtopic.php?f=5&t=138&p=253&hilit=linuxcnc#p253))

[G-code#List of G-codes commonly found on FANUC and similarly designed controls for milling and turning](https://en.wikipedia.org/wiki/G-code#List_of_G-codes_commonly_found_on_FANUC_and_similarly_designed_controls_for_milling_and_turning)
