Grabhole.de


FAQ

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in general

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Are you open to commissions?

On paid ones: I'm rather not.
For free: get off my website.

Will you send out CAD/STEP files for [any design]?

No.

I have a great idea for parts that would likely benefit a large amount of people,
but no means to create this. Would you?

Maybe! Hit me up through Kontakt, if it's cool and not already available, I'm all ears!

What's a grabhole?

Most definitely an acquired taste

I can't find [a model without link] for download. Can you send it to me?

Maybe. I post a lot of old designs that look cool in CAD or on paper but just didn't work nicely in the real world, or are outdated. Or I assume no one would want them, to begin with. If I didn't link a download-page that's possibly the reason. Other reasons could be that the design is so specific (like, it relies on very specific parts and setups) that I don't feel they handle much value for others, this is the case for lens-enclosures for example. But it doesn't hurt to ask, you can drop me a message through Kontakt.



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on focusers

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I have [terrific wide-angle adapter], will it fit into any of the Pfocus housings?

I can't know without having the glass in my hands, but generally: very, very unlikely. The glasses would need to be the exact size and shape, and even if they are there's a chance that the distance the elements need is totally off and you either overshoot or can't reach infinity focus.

Will you just send me the CAD/STEP files so I can adjust the housing for [terrific wide-angle adapter]?

No.

Can you make a housing for [terrific wide-angle adapter]?

Very likely, yes.

... will you make a housing for [terrific wide-angle adapter]?

No, probably not.
Okay, I probably have to elaborate on this. Making a focuser is not terribly hard, but making it work well enough and ensure it possibly works for others as well just takes a lot of time. Then, not every wide-angle converter works properly as a focuser to begin with, and I also can't just buy any wide-angle converter to check how well it could work. I can't make a focuser from your measurements, it doesn't work like that. And even if you would send me a copy, I'd probably have to pay some tax, drive to the tax office for pickup (nightmare!), and till I know how well this thing works I already invested a some serious time.
A way you can get me interested in making a new housing is if you already know how well it could work and if the glass is (still) widely available and ideally doesn't cost a fortune. For these, I'm always on the lookout. Hit me up through Kontakt if you have something like that!

Come on! I will pay you to do it!

This is flattering, but no, I'm not into comissions. This stuff here is my fun happy-place, and I don't wanna ruin this by making it an obligation.
That is one reason. Another is, I'm terribly expensive. I'm no professional CAD user but that doesn't mean my time isn't valuable... and if I have to use my scarce free time on this I can't work for exposure.

I am aware that I do sound like an asshole here, it is what it is. So please, unless it's a project that could really be for the "greater good" and its most interesting feature isn't just that it is already in your posession, take this FAQ as an answer.





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