[Lab] laser mirror holders

Thu Nov 4 13:58:10 EDT 2010

I assumed it didn't need to be the same as the ebay one, but that gives me
an idea of the mechanics, so I know what type of behavior I'm emulating...

I'm not sure about the threaded hole idea, but I'm sure I can get something
equally as effective from a printed part for sure.

If you can bring the existing one that would give me another hands-on
example, and I could take some pics of it too to use for reference... is the
mirror itself circular? or square?

I'll let you know shortly if we can meet tonight.

- Paul

On Thu, Nov 4, 2010 at 1:27 PM, Darcy Whyte <darcy at siteware.com> wrote:

>
> The mirror holder on my cutting head has a 1" threaded hole. you slip the
> mirror into the hole and there is a threaded circle that you screw in to
> pinch it down into the hole.
>
> If we are able to meet tonight I'll bring that one.
>
> It doesn't have to work the same as the one on ebay. As long as it can hold
> the 1" mirror and be tilted for adjustment (through a screw or something to
> make it accurate).
>
>
>
>
>
> On Thu, Nov 4, 2010 at 1:23 PM, Paul & Andrea Mumby <themumbys at gmail.com>wrote:
>
>> Ok, so if I get the mechanics from those photos, their particular design
>> has the flat square bracket (with the circular hole) which would be the
>> plate which the mirror itself would be fixed against. This pivots on a
>> ballbearing in the corner of the L shaped bracket, with 2 center springs
>> under tension, which keeps the corner set screws under compression, allowing
>> you to adjust the X and Y tilt, the L shaped bracket has 2 holes one in each
>> "arm" which I'm assuming are for mounting the whole apparatus to your
>> machine...
>>
>> I'm not sure how the mirror is affixed to the flat plate with the circular
>> hole, they mention plastic tipped screws, but I don't see that anywhere in
>> the pic, but I might be missing that... Either way if my above assumptions
>> of the mechanics are correct, I should be able to mock up a design for this
>> quite easily...
>>
>> If you have any other input to offer that might let me get something
>> mocked up in time to show you tonight.
>>
>> I'll confirm with my wife when I get home from work if tonight is ok for a
>> quick meeting, and if she's ok with that then I'll email you and confirm
>> timing and such early this evening...
>>
>> Does that work for you?
>>
>> Thanks!
>>
>> - Paul
>>
>> On Thu, Nov 4, 2010 at 12:44 PM, Darcy Whyte <darcy at siteware.com> wrote:
>>
>>> Did you follow the ebay link I sent?
>>>
>>> Okay, we can meet up tonight later if you want. Just send me the address
>>> at time to darcy at siteware.com. I can probably come around 9 or just
>>> before 10 for a quick meeting.
>>>
>>>
>>>
>>> On Thu, Nov 4, 2010 at 12:41 PM, Paul & Andrea Mumby <
>>> themumbys at gmail.com> wrote:
>>>
>>>> I'm in Bayshore... My house and workshop are a bit of a disaster area
>>>> lately though lol... I think my wife would shoot me if I invited someone in
>>>> right now :)
>>>>
>>>> Either way, we could meet quickly to discuss your options, if you have
>>>> some hand sketches or something of the parts, and bring along some samples,
>>>> and dimensions, I could mock something up tonight/tomorrow, and we could
>>>> discuss it more at the faire... your right in that there might not be a ton
>>>> of time, but I was surprised how easily the design/testing cycle works now
>>>> that I have rapid prototyping capability... Small parts take 20min to print
>>>> or less, so I can easily whip up a design in an hour or less, print it, and
>>>> take an iterative design approach to something that is normally much more
>>>> monolithic... It wastes a bit more material, but since material costs are so
>>>> low for the plastic filament, it's totally worth the agility gained in the
>>>> design process...
>>>>
>>>> Let me know what your thoughts are and we can talk about it.
>>>>
>>>> I'm a bit busy tonight and tomorrow, as I also have some paperwork to
>>>> catch up on for my home business, and some other todo items to deal with
>>>> (I've been multitasking between print and other stuff) but I could probably
>>>> afford an hour or so either tonight or tomorrow between 8pm and 10pm to
>>>> discuss options. Otherwise we can talk at the faire and meet up sometime
>>>> following that if that works better.
>>>>
>>>> Even an email with some sketches/dimensions and pics of parts and so on
>>>> might let me mock up something quickly if that's preferable as well.
>>>>
>>>> Thanks!
>>>>
>>>> - Paul
>>>>
>>>> On Thu, Nov 4, 2010 at 12:26 PM, Darcy Whyte <darcy at siteware.com>wrote:
>>>>
>>>>>
>>>>> I would think that there wouldn't be much time to do it during the
>>>>> Maker Faire. The printing would be easy but the design (and any experiments)
>>>>> would take a while.
>>>>>
>>>>> I think the plastic cost is cool.
>>>>>
>>>>> Where are you? If you want to try some test runs, I could drop by if
>>>>> you want.
>>>>>
>>>>>
>>>>>
>>>>> On Thu, Nov 4, 2010 at 12:18 PM, Paul & Andrea Mumby <
>>>>> themumbys at gmail.com> wrote:
>>>>>
>>>>>> There will be several 3d printers at the maker faire, I would bet you
>>>>>> could have mirror holders made at the maker faire with enough
>>>>>> bartering/negotiating lol... 1" holding brackets wouldn't take long to
>>>>>> print, it would mostly be design/testing time that would consume the most
>>>>>> effort...
>>>>>>
>>>>>> I'd be fine with printing them for you at maker faire for cost of
>>>>>> plastic used (which would be minimal, hell I would likely do it for free
>>>>>> depending on the volume of plastic). provided we have the time/resources to
>>>>>> design the parts. I'm sure a lot of the other guys will have more Industrial
>>>>>> Design experience than I do though.
>>>>>>
>>>>>> Anyway, point being there will be at minimum 5 3d printers, and
>>>>>> possibly as many as 7-8 at the maker faire. So between all of them I'm sure
>>>>>> your parts could get done ;)
>>>>>>
>>>>>> Also there is talk about kickstarting the RepRap Loaner program at the
>>>>>> ottawa Maker Faire, so we will be trying to build a reprap mendel at the
>>>>>> faire, and use it as a community loaner model.
>>>>>>
>>>>>> I've been working on printing parts to have at the maker fair in the
>>>>>> evenings this week (just for examples) so if you have a design in mind, or
>>>>>> some info, perhaps I could run a few off as tests tonight or tomorrow, and
>>>>>> bring them along, get a bit of a head start.
>>>>>>
>>>>>> Let me know.
>>>>>>
>>>>>> - Paul
>>>>>>
>>>>>> On Thu, Nov 4, 2010 at 11:55 AM, Darcy Whyte <darcy at siteware.com>wrote:
>>>>>>
>>>>>>>
>>>>>>> I'm now wanting to make mirror holders. The mirrors are 1". I need
>>>>>>> two of them. They should have a tilt adjust.
>>>>>>>
>>>>>>> Any ideas?
>>>>>>>
>>>>>>> The artengine makerbot? What is the status of that? What is the
>>>>>>> procedure for booking it?
>>>>>>>
>>>>>>> I'd like to try and have them done before Guy and I are finished
>>>>>>> making the mounting brackets for the laser tube.
>>>>>>>
>>>>>>> Here are some mirror holders on ebay:
>>>>>>>
>>>>>>> http://cgi.ebay.com/2-Thorlabs-1-Optic-Mounts-Holder-Laser-Mirror-Lens-/160361359773?pt=LH_DefaultDomain_0&hash=item255648299d#ht_1115wt_869
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Lab mailing list
>>>>>>> Lab at artengine.ca
>>>>>>> http://artengine.ca/mailman/listinfo/lab
>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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