help please with power/feed rate issues

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james_h
Posts: 2
Joined: Fri Aug 09, 2019 9:22 pm

help please with power/feed rate issues

Post by james_h »

I recently acquired a used A3 laser engraver with a faulty laser module.
I replaced it with a new module which came with its own control board.
I’ve installed T2 laser and I have spent a long long time reading and researching various settings, troubleshooting etc but i’m making no progress.
The issues I have:
I don’t have TTL control
The power setting (0-255) seems to have some control from 0-50 but anything above that looks about the same and burns ply despite a feed rate of 2500 (which i think it causing some quality issues (backlash?)
Velocity mode (designed to create grayscale by varying the feedrate) seems to have no effect.

In essence, i’m finding it impossible to get a decent amount of control on power/feed rate. i’m not sure my board is configured correctly, the laser will only operate with the switch in TTL position even though i have no TTL input. Any help greatly appreciated.
photos of boards and laser
B8D8F1B4-D296-4AC4-A6D1-3B313B8309BA.jpeg
B8D8F1B4-D296-4AC4-A6D1-3B313B8309BA.jpeg (206.38 KiB) Viewed 812 times
B4F6D26A-FE2E-4510-923F-F68F0D996CA8.jpeg
B4F6D26A-FE2E-4510-923F-F68F0D996CA8.jpeg (173.53 KiB) Viewed 812 times
1CCB4C8B-BED9-4614-8F27-8ED388B03495.jpeg
1CCB4C8B-BED9-4614-8F27-8ED388B03495.jpeg (245.7 KiB) Viewed 812 times
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