[ML-General] laser

[Joshua Pritt]

Just an FYI we recently noticed a drop in power and had to turn up the
power and lower the speed for cutting on the laser at Melbourne Makerspace.
We did the one pass with qtips on the mirrors like mentioned above but it
didn't help. We saw that the final lens in the system had a dark spot that
wouldn't clean off so we removed it thinking it was dirty on the back side
somehow. As soon as we removed it we could tell it was not something you
could clean. We put a brand new lens in and now it is better than when we
bought it! What normally took 70 to 80% power to cut all the way through
now only needs 30%! So just a heads up on something else to check if you
notice the power dropping on the cuts.

On Sun, Nov 17, 2019, 8:38 PM Norm Marshall <normcooks at gmail.com> wrote:

> The laser has been working fine for me all day. If you would like some
> assistance in focusing it, I am happy to help
>
> Norm Marshall
>
> On Sun, Nov 17, 2019, 6:04 PM Ryan Coons <ryancoonsyhg at gmail.com> wrote:
>
>> DO NOT USE RUBBING ALCOHOL ON OPTICS.
>>
>> Propylnol can destroy the anti-reflective coatings and other treatments.
>> Methanol (wood alcohol) should be used instead. Clear vinegar is acceptable
>> for use on the ZnSe optics in CO2 laser systems.
>>
>> On Sun, Nov 17, 2019, 2:57 PM Wesley Swift <wesleyswift2 at gmail.com>
>> wrote:
>>
>>> I am fond of q-tips and rubbing alcohol.   Shake off excess alcohol and
>>> make a pass on the glass.  Don't rub.   Use each end for one pass only and
>>> toss it or use to clean non optical parts.
>>> Microfiber is also great  stuff but q-tips are better with liquids.
>>> Don't rub.
>>>
>>> Wes
>>>
>>> On Sat, Nov 16, 2019, 10:22 PM Bradley Marshall <sk8rbradley at gmail.com>
>>> wrote:
>>>
>>>> For the laser at work we just use some vinegar and a qtip. They told me
>>>> to specifically not wipe in circles as it is apparently bad for the lens.
>>>>
>>>> On Sat, Nov 16, 2019, 10:19 PM Joe Iacuzzo <joe.iacuzzo at gmail.com>
>>>> wrote:
>>>>
>>>>> Can anyone let me know how easy or difficult it is to clean the laser
>>>>> lens? When we went to use it I noticed that the fan on the laser was off. I
>>>>> turned it back on but the cuts weren't as clean as they have been. I
>>>>> believe that it may have allowed for residue buildup on the lens. I didn't
>>>>> want to mess with it unless I was certain I knew what I was doing.
>>>>> Joe
>>>>> _______________________________________________
>>>>> This is the general mailing list.
>>>>> This list is for public discussion about Makers Local and related
>>>>> activities.
>>>>> To stop receiving mail from this list, write to
>>>>> general-leave at lists.makerslocal.org.
>>>>
>>>> _______________________________________________
>>>> This is the general mailing list.
>>>> This list is for public discussion about Makers Local and related
>>>> activities.
>>>> To stop receiving mail from this list, write to
>>>> general-leave at lists.makerslocal.org.
>>>
>>> _______________________________________________
>>> This is the general mailing list.
>>> This list is for public discussion about Makers Local and related
>>> activities.
>>> To stop receiving mail from this list, write to
>>> general-leave at lists.makerslocal.org.
>>
>> _______________________________________________
>> This is the general mailing list.
>> This list is for public discussion about Makers Local and related
>> activities.
>> To stop receiving mail from this list, write to
>> general-leave at lists.makerslocal.org.
>
> _______________________________________________
> This is the general mailing list.
> This list is for public discussion about Makers Local and related
> activities.
> To stop receiving mail from this list, write to
> general-leave at lists.makerslocal.org.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.makerslocal.org/pipermail/general/attachments/20191118/8bfad212/attachment.html>