Machine does not respond to Feed Rate increase

3rd Party Machines
1

Hello,
New to the forum here. Just built a new machine. I am using an Arduino with Easel running it.
I have 2 issues. First issue is that is not moving to scale. The movements are smaller than the values entered. When I ask for 1 inch of movement, I am getting 5/8 inch. But I found a few previous threads explaining how to recalibrate for that.

The issue I haven’t found anything for is Feed rate response.
No matter what feed rate I enter in Easel. My machine just moves along at very slow speed.
Same speed no matter if I reduce the feed rate or increase it.

At this point I have not cut anything. I am just doing dry runs without the spindle attached to make sure everything responds at it should.

Any ideas would be greatly appreciated.
Cheers

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What are your Grbl settings?
Tell us more about your machine.

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Size Calibration within Easel:

Feed/Acceleration Calibration theory, shown using UGS, BUT you can also do this process in Easel within the same Machine Inspector page as the movement distance calibration from above:

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Hi folks,
Got everything sorted. PaPa’s video was great to explain calibration for distance travlled. Worked perfect.
As for the machine not being able to increase in speed…
Once I was in the grbl code and saw which lines control travel measurements. I figured there must be lines for speed as well. I found a list that describes what each line does. Went to the lines for speed and increased them. Now i can speed up and slow down the feed rate as needed. Then i found the lines for acceleration and brought them up to a more respectable speed. The acceleration was really slow as well. I don’t need instant acceleration, but i shouldn’t have to count to 10 either to get there.
Thanks for pointing me in the right direction.
Next up, is setting up and leveling the waste board.
Cheers

2 Likes
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I wish this was the response to every question that comes through on the forum!

Glad you’re up, running, and learning how to use your machine.

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