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Sophia out of action. Bed stuck. #968

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dazz-ling opened this Issue Nov 6, 2018 · 8 comments

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@dazz-ling

dazz-ling commented Nov 6, 2018

There are a few issues with Sophia today.
The focus was widely out plus the bed has been jammed really high ( about a cm higher than a flat bed) and seems to have gotten stuck.
From memory, you have to release the bed from underneath the base, so a 2 person job.
Nobody has it booked for the rest of the week.
Darran

@amcewen

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amcewen commented Nov 6, 2018

I've booked Sophia's calendar out for the rest of this week and all of next (and marked it as "busy") so nobody else will be able to book her, and added the Broken label here so she gets marked as out-of-action on status.doesliverpool.com.

@magman2112

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magman2112 commented Nov 6, 2018

Can we possibly find out who was last using Sophia, as it looks like we may need to do a bit of re-training so that we don’t get this issue again with this user?

@DoESsean

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DoESsean commented Nov 8, 2018

@magman2112

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magman2112 commented Nov 8, 2018

I didn’t say complete retraining, just a bit of retraining. I would also like to know what they were trying to do which caused the bed to go out of alignment, so that we can potentially add it as an item in the laser induction, to reduce the the incidents in the future.

@MatthewCroughan

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MatthewCroughan commented Nov 8, 2018

Only just seeing this, they had left the bed on Sophia really far down, and I was unsure how the ruler worked. Adjusted it too tightly up and didn't realise there was an upper limit

I think we need a bit of editing in the wiki, it doesn't describe how to use the ruler, I was never properly inducted on sophia in particular. The current wiki statement is "align lens with bottom of ruler", not specifying what the bottom is, and whatever I thought the bottom was caused me to tighten the bed too much.

Will make my own issue immediately after these discoveries in the future, but was incredibly exhausted at 5:30am when it occured.

@magman2112

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magman2112 commented Nov 8, 2018

OK, so the retraining is for Matt then :-). We can update the wiki, as Matt has suggested, once Sophia is back up and working. We might even get around to making a new gauge for Sophia as well, possibly with the instructions engraved on it.

@johnmckerrell

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johnmckerrell commented Nov 8, 2018

@magman2112

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magman2112 commented Nov 9, 2018

Sophia is back up and working again. I as able to release the bed and get access to the belt tensioner for the bed raising screws. With the belt tension released it was relatively easy to reset the bed to level.

With help from @Sean-anotherone, we then had a great deal of fun getting the laser aligned again. The laser alignment is a real pain on Sophia, so we have modified one of the mirror mounts to see if we can improve the alignment process. We will wait to see if this modification is stable enough before modifying any of the other mirror mounts.

I also gave Sophia a good clean out whilst the laser bed was loose.

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