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Incalculable
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Catflap

Jan 01, 2018 4:34 pm

hi guys,

here my catflap, homebuilt PCB, Wifi controlled with App or via smartHome, isolated, with alarm and chipdetection, cat in/out detection etc..
Completely printed on my Prusa i3 MK2s in black Rigid.ink ASA.
Works like a charm, no drafts etc anymore.

And yes, wihout shame i copied the button design from my printer ;)

Rgds Vinc

P.s.:the silver shield was necessary as i drilled throught the door on the prototype..opening was to tight for a sensor :D
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JeffJordan
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Re: Catflap

Jan 01, 2018 4:59 pm

pretty cool.
obviously you've used the whole print surface available.
how difficult was printing it with ASA ?
dem inscheniör is' nix zu schwör...

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Re: Catflap

Jan 01, 2018 5:17 pm

Yes, the lower frame is exactly the whole build area 😉 . One runs into all new problems when using the whole space.. but otherwise the flap would be too small for my big cats (Bengals).

Rigid ink ASA prints like a charm, when you have an enclosure. One just encounters light warping (especially at the 90 degree corners, could be prevented with round corners). With area for a brim I think one would have no warping at all with an enclosure.
Only problem I had was with layer cracking at the tunnel. I think that could be solved with one or two perimeter walls more.

I have parts outside since spring out of asa, all look like new. UV light and moisture do not matter at all.

And it can be polished and is great for mechanical parts.

Would be my everyday goto filament, just two problems: - fumes during printing and the need for an enclosure. And just few colors..

Rgds

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JeffJordan
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Re: Catflap

Jan 01, 2018 7:30 pm

what's the temperature inside your enclosure during the print ?
dem inscheniör is' nix zu schwör...

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Re: Catflap

Jan 01, 2018 8:12 pm

I measured 40 degree.

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Knickohr
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Re: Catflap

Jan 02, 2018 8:25 am

Great work !

Thomas

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Re: Catflap

Jan 02, 2018 8:06 pm

I'm curious (even though it's not entirely 3D print related, it does relate to your print and is likely useful for anyone going down a similar route) - what do you use to read the chips?

The only modules I found for 134 kHz are from an Australian company. I've seen suggestions to use an antenna for 125 kHz with less read distance, but that doesn't sound too great of an idea.

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Re: Catflap

Jan 02, 2018 8:43 pm

@ Stefan: you got a PM, since totally not print related... :D

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jakub.d
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Re: Catflap

Jan 08, 2018 9:20 am

Damn I need this asap, my cat wants in/out like 10x a day :lol:

Btw is it ok to share your creation on Prusa3D Pinterest?
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Re: Catflap

Jan 09, 2018 1:55 pm

Of course, please share.
Right now i‘m developing V3, which will be cnc milled out of 1 piece. No display then, cause the app works flawlessly to control.

And Jakub, i know your problem. That was the reason for this thing in the first place. My cats mind was stronger than mine..

By the way, it detects blockages three ways and has an emergency clutch...so is complety cat safe.

Rgds Vinc
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