Equipment/HPC LS3060 Laser Cutter/LogBook: Difference between revisions
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, 3 February 2011State of the laser cutter from IRC
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==Logbook== | ==Logbook== | ||
==3/2/2011 Long discussion with lots of information on IRC, edited by [[User:Ms7821|Mark]]== | |||
tl;dr: | |||
* We're getting 2 new tubes by Tuesday | |||
* It's fucking filthy, all of it | |||
* Coolbot is being dealt with by Charles, please bear with us | |||
* After replacing the tube, we may insist on Coolbot being used at all times | |||
* We need to look into the cleaning process seriously | |||
<pre><nowiki> | |||
18:54:21 <@solexious> the cutter is only up for doing tiny jobs for training | |||
19:23:16 <@solexious> right, the lasercutter is out of order, please don't use it or the cooling system till we have the new tube | |||
20:44:57 <@solexious> lovelace_: the WHOLE system is out of order and not to be used, when the system is working the cooler is working too | |||
21:08:11 < lovelace_> basically, the whole machine is "filthy". every mirror, the inside, and the outside of the laser tube is covered in crap. we are documenting it. | |||
21:08:35 <@solexious> lovelace_: 2 of the mirrors are NEW | |||
21:08:44 < lovelace_> doens't make them clean | |||
21:08:51 <@russss> lovelace_: I assume that is because people have been running the laser while it's had an "out of order" sign on it. | |||
21:08:56 <@russss> and nobody's known to clean it. | |||
21:09:02 < lovelace_> yup | |||
22:11:11 <@solexious> could you tell him hpc can get us 2 tubes on monday/tuesday and its £195 +vat +del | |||
22:35:23 < kal> Sol: There is a hole on the water cooler that looks like it can be adjusted for regulate the amount of cooling. but it as a screw instead of nob | |||
22:35:27 < kal> knob* | |||
22:35:46 < kal> does that do anything/ have you tried to adjust it? | |||
22:36:21 < kal> for = to* | |||
222:38:07 < artag> kal, the cooler itself is a chiller for drinking water. It tries to get it's coil temp down to a few deg C. This is much too cold for the laser tube. Coolbot pumps water from the tank through the chiller when the tank is warm. The screw adjusts how hard the chiller tries to get down to low temps. | |||
22:40:04 < artag> since the tank is always fairly warm when coolbot needs to cool it, the chiller's thermostat will be on regardless of that screw setting | |||
22:45:40 <@solexious> kal: i ask for leaving coolbot as it is my project, rather than a general hackspace item | |||
00:20:28 < BytePilot> (sigh) well, cleaning its internals was a good plan anyway, | |||
00:20:46 < BytePilot> solexious: I had a good peek at tht tube, it's _full_ of grot | |||
00:20:58 <@solexious> BytePilot: yup | |||
00:21:31 < BytePilot> and that MDF is icky tarry stuff. Porr machine had ick in places where nobody should have ick. | |||
00:21:47 <@solexious> BytePilot: the lens and mirrors were cleaned a few days ago, with 2 of the mirrors being new | |||
00:22:16 < BytePilot> solexious: (wince) Ouch. | |||
00:22:31 <@solexious> and it hasnt been used much at all | |||
00:23:09 < BytePilot> solexious: the mirror on the back of the flying Y axis was _filthy_ utterly coated in gak, and I gleaned literal Lumps out of the wee hole in the mount for the vertical mirror | |||
00:23:57 < BytePilot> Might be worth saying "acrylinc/laser ply only" until we know what the trouble is. | |||
00:23:59 <@solexious> ah yes, that one still needed doing, one of the reasons it was out of order, sadly the sign had apparently been removed | |||
00:24:17 < BytePilot> I didn't open the power supply chamber, but I'm guessing that could do with a frisk over too | |||
00:24:42 < BytePilot> (HeadDesk) | |||
00:25:35 < BytePilot> also, we couldn't get the coolbot interface to work (ie suppy power to the subsidiary pump), is there something we needed to know ? | |||
00:26:04 <@solexious> BytePilot: no, its all just out of order at the moment | |||
00:26:35 < BytePilot> I'm also going to take screenshots of all the settings for the machine I have here, and compare them to those you have there. Just in case someone has fiddled with a number they shouldn't have. | |||
00:27:14 < BytePilot> There'll be some differences in bed size/shape but the power output settings should be similar. | |||
00:27:15 <@solexious> BytePilot: sounds good, ive also got a full copy of the software/settings backed up | |||
00:27:36 <@solexious> (from when all was working well) | |||
00:27:39 < BytePilot> Solexious: good plan. that 35%=100% thing gives me the fear. Something is _very_ odd there. | |||
00:28:06 <@solexious> BytePilot: have you had a tube fail on you? | |||
00:28:44 < BytePilot> Solexious: Nope, not even any significant power drift. and my cooling water came out of the tap (via a water filter) | |||
00:28:49 <@solexious> and 35%==75% | |||
00:29:35 <@solexious> ^ pedant | |||
00:29:44 < BytePilot> solexious: (grin) I'm going to stay awy from actually using the poor thing until it's behaving comprehensably again. | |||
00:30:37 <@solexious> cool, thanks for saving me from giving it another clean | |||
00:30:48 < BytePilot> solexious: we got the subsidiary pump working again (percussive maintainance) and it's now ganged into the switched socket with the main pump, since they only draw 500ma between them | |||
00:31:59 < BytePilot> Solexious: S'cool. I think people are taking advantage a little, making you clean the machine for them. I know that some parts need delicate handling, but they should at least vaccum out their dust | |||
00:32:01 <@solexious> oh christ, i hope the cutter is off till i get there to un do that | |||
00:32:15 < BytePilot> solexious: why ? | |||
00:32:27 < BytePilot> solexious: it works, and works well. | |||
00:32:31 <@solexious> it will chill the tube to 7 degrees | |||
00:33:00 < BytePilot> solexious: seven degrees ? How ? | |||
00:33:19 <@solexious> i was told that the coolbot had been left alone after numerous requests on irc | |||
00:33:20 < BytePilot> solexious: the chiller isn't even close to that powerful. | |||
00:33:51 <@solexious> BytePilot: it is, thats what happened before coolbot when the cooling system is manual | |||
00:34:03 <@solexious> s/is/was/ | |||
00:34:15 < BytePilot> Was the chiller left on 1005 of the time ? | |||
00:34:19 < BytePilot> 1005 even ? | |||
00:34:29 < BytePilot> (bugger, pokes shift key) | |||
00:35:06 <@solexious> it was left on over night, came in to a box of 7 degrees water | |||
00:35:49 < BytePilot> The pump that drives the water to the chiller will only come on when the pump that drives teh water to the laser is also on | |||
00:35:50 <@solexious> its slow, but can chill quite well | |||
00:36:14 <@solexious> BytePilot: if the lasercutter is left off | |||
00:36:50 < BytePilot> (blink) you're not telling me someone left the entire rig on overnight ? | |||
00:37:11 < BytePilot> Ok, that kind of criminal idiocy we didn't think even possible. | |||
00:37:44 <@solexious> and as my requests for it to be turned off and left alone were ignored, im not expecting that to be followed now | |||
00:38:44 <@solexious> BytePilot: sadly i've come to realise you have to treat people as idiots in the space (alto most people arnt, just miss guided) | |||
00:40:16 < BytePilot> (thinx) Could sense the laser power and drive the chiller off that. | |||
00:40:24 < BytePilot> No that's no use. | |||
00:40:33 < BytePilot> still allows idiocy | |||
00:40:55 <@solexious> BytePilot: when the system isn't out of order it works well, its just the human element that breaks it :) | |||
00:41:12 < BytePilot> Solexious: Aye, and we're going to have to sort that out. | |||
00:41:40 < BytePilot> solexious: I honestly think that one of the best things we could do is move the laser out of the "dirty" area and into someplace less full of dust. | |||
00:42:31 < BytePilot> Solexious: The tube chamber at the back of the cutter was full of fine sawdust, I had to clean the outside of the tube before I could be sure that the inside really was gunky (it really is) | |||
00:43:32 <@solexious> its pretty much a sealed box, its more likely thats from cutting mdf than from the workshop | |||
00:44:02 <@solexious> and the sealed cooling system didnt get shite into it, just a shame it got busted in the move. | |||
00:44:19 < BytePilot> solexious: In which case, definitly less MDF, t | |||
00:44:31 <@creature> I've been cutting some mountboard recently. So if the dust was more like burnt paper than MDF, I could have been the source. Sorry, if so. | |||
00:44:46 < BytePilot> solexious: cooling system is a lot more sealed now. I'd go so far as to say it's very sealed | |||
00:45:12 <@solexious> BytePilot: I think just a forced log book so we can see at a glance how much use it getting and do full cleans accordingly | |||
00:45:23 < BytePilot> Creature: Unless your mountboard was light brown and you were cutting a lot of it I'd go with MDF | |||
00:45:45 < BytePilot> solexious: tricky to enforce. | |||
00:46:07 * solexious gets out his boom stick enforcer | |||
00:46:10 < BytePilot> solexious: (does thinking in head) | |||
00:46:33 < BytePilot> Also, I couldn't find any white lithum grease, or isopropanol in the space, | |||
00:46:56 <@solexious> but once we have the relaser software we can log it electrically | |||
00:47:10 <@solexious> was the iso ont next to the sink? | |||
00:47:11 < BytePilot> vodka works for clearing gunk, but some parts of the machine need a "proper" clean | |||
00:47:32 < BytePilot> solexious: not that I saw (shrug) possibly just me being blind | |||
00:47:44 <@solexious> heh, it hides from me alot too | |||
00:47:55 < BytePilot> solexious: so long as people aren't drinking it | |||
00:48:00 <@solexious> take it you found the cleaning kit | |||
00:48:20 < BytePilot> solexious: (grin) I didn't someone found it for me | |||
00:48:48 < BytePilot> solexious: Oh, also, remind me to bring a Z-axis ruler | |||
00:49:10 < BytePilot> solexious: excellent pre-cut suare that's just the right height to set the laser above your cutting surface. | |||
00:49:14 < BytePilot> (square even) | |||
00:49:15 <@solexious> how come? and is it different from a normal ruler? | |||
00:49:23 <@solexious> ah | |||
00:49:47 < BytePilot> No need for any level of cleverness, just stick the square underneath and if it just fits you got it right | |||
00:50:10 < BytePilot> (cut for the wee metal plate on the Y axis, not for the laser head itself) | |||
00:50:12 <@solexious> not sure i can picture that... | |||
00:50:25 <@solexious> oooh | |||
00:51:02 <@solexious> i just put a ruler on the bed and move the z till it touches the top of the z ruler | |||
00:51:30 < BytePilot> (grin) I don't trust my Z ruler | |||
00:51:43 < BytePilot> because I know for sure my bed isn't flat | |||
00:52:20 <@solexious> heh, after doing 0 tests on acrylic that seems to be the only accurate bit of the cutter | |||
00:52:20 < BytePilot> Nor is the one at the space either alas. I don't think it's sloped, but it is lumpy. damn "honeycomb" | |||
00:52:50 < BytePilot> (sigh) they are rather thrown together aren't they... | |||
00:53:11 <@solexious> i take it you saw the x and y rulers with 10" 11" 11" 12" | |||
00:53:28 <@solexious> still makes me chuckle | |||
00:56:11 < BytePilot> worried me rather, wasn't sure I'd seen it right. | |||
00:56:37 < BytePilot> Right, I'm off to kip. | |||
00:56:43 <@solexious> nn | |||
00:56:52 < BytePilot> I'll have a look at my own machine and see if I can see anything that looks suspect | |||
00:57:09 < BytePilot> because grotty as the tube is, I'm not sure that's going to be our magic bullet. | |||
00:57:24 < BytePilot> also, I think we might be able to flush the grot out. | |||
00:57:43 < BytePilot> and we definitely need fresh water in the colling system, if's got "bits" in it. | |||
01:02:46 <@solexious> BytePilot: by all means try, but I have given it a large flush | |||
</nowiki></pre> | |||
===2/2/2011 Note by [[User:Naxxfish|Naxxfish]] === | ===2/2/2011 Note by [[User:Naxxfish|Naxxfish]] === | ||
