Rough edges problem
Posted: Sun Sep 16, 2018 8:14 pm
Hi guys,
So I've been lurking this forum for about a year or two pondering the idea to build my own laser but only a couple of months ago i decided to went for it. I based my machine design on xfredericox's LAYZOR frame but went with 3d prints for custom parts and added a RD6442 Ruida controller. My machine is functional now and, hopefully, after working out all the remaining issues, I will write a full presentation post.
Today I write to seek help with the following:
My laser cut edges look rough. Like its been sawed or something.
I blamed the steppers but the math does't add up. I have 200 steps /rev steppers with DM542 configured to 3200 mircosteps/rev and GT2 belt. My edges seem to have 30 teeth over 20 mm.
This problem appears over both x and y axis. Another assumption was that my air assist pump ( which is a small aquarium air pump EHEIM 400 ) pulsed air instead of giving a constant flow which removed smoke intermittently resulting in uneven beam power.. This may also be not true because a low power calibration line should not be influenced by this.
Also, my mirrors seem firmly fixed in their mounts.
I am at a lost now and need some leads.
Many thanks.
So I've been lurking this forum for about a year or two pondering the idea to build my own laser but only a couple of months ago i decided to went for it. I based my machine design on xfredericox's LAYZOR frame but went with 3d prints for custom parts and added a RD6442 Ruida controller. My machine is functional now and, hopefully, after working out all the remaining issues, I will write a full presentation post.
Today I write to seek help with the following:
My laser cut edges look rough. Like its been sawed or something.
I blamed the steppers but the math does't add up. I have 200 steps /rev steppers with DM542 configured to 3200 mircosteps/rev and GT2 belt. My edges seem to have 30 teeth over 20 mm.
This problem appears over both x and y axis. Another assumption was that my air assist pump ( which is a small aquarium air pump EHEIM 400 ) pulsed air instead of giving a constant flow which removed smoke intermittently resulting in uneven beam power.. This may also be not true because a low power calibration line should not be influenced by this.
Also, my mirrors seem firmly fixed in their mounts.
I am at a lost now and need some leads.
Many thanks.