Yeah, that drawing is definitely worth a lot of words.  To prevent the=20
cookie from breaking, I'd probably have the red part wrap all around the=20
cookie (or most of the way around).  I'd also need the red part to=20
easily slide or rotate out of the way so the cookie can be removed.  I=20
like it!  One of my high-school robotics team mentees has been helping=20
me with the CAD, so I'll chat with him about it.

Thanks,
-Neil.




On 9/8/2015 5:43 PM, Denny Esterline wrote:
> [image: Inline image 1]
> Well, if a picture is worth a thousand words... This one's about 5 thousa=
nd
> bytes...
>
> So, mount the red holders to your machine. They hold the flat side of you=
r
> cookie (brown) at a known height and the spring (green) takes up the
> difference.
>
> This is of course a crude drawing with MS paint. I suspect a few minutes
> with your favorite CAD tool would produce something much nicer.
> I drew this with a coil spring, in practice I'd be thinking something
> closer to a spring clothespin or a binder clip. (Popsicle sticks and rubb=
er
> bands...) It shouldn't take much force.
>
> I also suspect the red parts would actually be one horseshoe part that go=
es
> 1/2 way around the cookie or so.
>
> Just a thought, and I'm sure worth everything you paid for it :-)
>
> -Denny
>
>
>
> On Tue, Sep 8, 2015 at 1:02 PM, Neil <picdude3@narwani.org> wrote:
>
>> Not sure what you mean by this... can you clarify?
>>
>> I'll add that I am modifying the software so I can easily jog the tip
>> up/down before starting to print, and as long as the cookies are flat
>> (which they mostly are upside-down), then I don't (shouldn't) need any
>> height compensation during printing.
>>
>> Cheers,
>> -Neil.
>>
>>
>> On 9/8/2015 2:59 PM, Denny Esterline wrote:
>>> Well, if you're willing to take the cop out.... :-)
>>>
>>> How 'bout a spring loaded cookie holder. A clip over the top edge and a
>>> spring underneath.
>>> That way the printed surface is always registered to the underside of
>> your
>>> clip and the
>>> spring takes up the difference.
>>>
>>> Have to be mindful of the clip not crossing paths with your print head,
>> but
>>> that
>>> seems easy enough to plan around.
>>>
>>> -Denny
>> --
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>
>

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