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DoESLiverpool / somebody-should

A place to document practices on the wiki and collect issues/suggestions/to-do items for the physical space at DoES Liverpool
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Sheila Laser cutter stopped working #1875

Open kinselley123 opened 1 year ago

kinselley123 commented 1 year ago

Half-way through cutting a design , the laser beam stopped working and started making a fizzing sound when in use. I'd only been using the machine for around 10mins prior to the issue - all the same setting as i usually use.

The casing of the laser still moves around the mat as per the design but no beam is being emitted and its making an unusual fizzing/buzzing sound when in use. I tried turning off/on twice but the problem persists. The temp was at 16 so i dont think it overheated and the filters were all on and working fine.

zarino commented 1 year ago

@DoESLiverpool/laser-maintenance

kinselley123 commented 1 year ago

Also, i did wonder if the casing where the beam is emitted and the light tracker is mounted on seemed quite loose. Im not 100% what its usually like though

DaveBenji commented 1 year ago

It's Sheila, not Sophia ( who is in bits under a desk...) Perhaps an admin can correct this for future reference?

Mike and I had a look and reproduced the symptoms, eventually narrowing it down to the HV PSU, which is a MYJG60W.

It's available from Amazon here:

https://www.amazon.co.uk/Cloudray-Engraver-Engraving-Machine-Category/dp/B07C2X6B4B/ref=asc_df_B07C2X6B4B/?tag=googshopuk-21&linkCode=df0&hvadid=606772809965&hvpos=&hvnetw=g&hvrand=1581000361229569856&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9046551&hvtargid=pla-1651933446959&psc=1

Shopping tag added.

The internals of the machine were also really full of brown soot, which has been cleaned up and the mirrors cleaned too. A bit of a general service might be needed once the PSU is installed.

Sean Anotherone

NB, this account was left logged in on Gerald.

magman2112 commented 1 year ago

A photo of the laser tube when we first opened up Sheila. Ever so slightly dirty.

30fc438f-931e-4776-bf2d-832248daa634

This has been thoroughly cleaned now.

We also found that the HT connection to the tube was loose. This has been re-fitted and tightened now.

JackiePease commented 1 year ago

Ordered power supply from Amazon for delivery on Monday

JackiePease commented 1 year ago

The power supply has arrived. It's currently on Seán's desk.

magman2112 commented 1 year ago

Power Supply now fitted and working.

This new supply has an external current meter, I haven’t fitted this at this time, as I expect this will need a little metalwork to fit it. So I will leave this issue open till this has been fitted.

JackiePease commented 9 months ago

@magman2112 can this be closed?