Pushing the envelope... Where no 3D printer should go...

Share projects and models that you like, and wow the fellow Uppers!
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cj7hawk
Posts: 103
Joined: Tue Dec 25, 2012 7:52 am

Pushing the envelope... Where no 3D printer should go...

Post by cj7hawk » Tue Dec 03, 2013 11:45 am

Heh, it's just a simple model. Almost unworthy of posting, but I can't recall seeing this anywhere else, and it really shows off what the PP3DP Mini can do - !

3D printed threads - Fully ISO standard metric threads printed at M10x1 and M10x2.5

I was actually amazed they came out formed... Especially at 1mm pitch. Even more amazing was that they worked, and worked quite well at that. Coarser pitch threads are fine for plastic, as friction stops them coming undone. To create them I wrote an ISO standard LISP routing for CorelCAD and formed the bolts. It puts the software under a fair bit of strain, but it worked quite well :)

Each "circle" in the thread is simulated by 32 segments, so not perfectly round, but round enough for the printed and to function correctly :)
The attachment IMG_0803 (Custom).JPG is no longer available
Clearance is 0.2mm between Inside and Outside threads to allow for variations in the plastic thickness due to shrinkage after printing.

Regards
David.
Attachments
IMG_0803 (Custom).JPG
1mm and 2.5mm pitch printed threads ( on a Mini )
IMG_0803 (Custom).JPG (76.86 KiB) Viewed 12901 times

Marcus
Posts: 526
Joined: Thu Nov 04, 2010 9:58 pm
Location: Germany

Re: Pushing the envelope... Where no 3D printer should go...

Post by Marcus » Tue Dec 03, 2013 8:10 pm

Neat!
I just printed a C mount adapter
http://www.ringohr.de/tmp6//IMG_1389.JPG
1" dia, 1/32" pitch and was suprised as well how good it worked...
:-)
Amazing printer.

ktronik
Posts: 96
Joined: Thu Apr 25, 2013 4:52 am

Re: Pushing the envelope... Where no 3D printer should go...

Post by ktronik » Fri Dec 06, 2013 5:50 am

Marcus wrote:Neat!
I just printed a C mount adapter
http://www.ringohr.de/tmp6//IMG_1389.JPG
1" dia, 1/32" pitch and was suprised as well how good it worked...
:-)
Amazing printer.

Great printer, hey put your filament in a only just warm oven 1hr, then print...its like 5 times better again!!! razor sharp super clean print!!

Marcus, I have seen the use of C-mounts to got the other way, so stock 4/3 camera to old skool lens, but what going in in your pic?? what APP is that setup for??

K

roller
Posts: 1622
Joined: Sat Oct 06, 2012 9:09 pm
Location: Brisbane, Australia

Re: Pushing the envelope... Where no 3D printer should go...

Post by roller » Fri Dec 06, 2013 6:53 am

Just keep your filament in an airtight container with some kitty litter - that'll keep it dry and save you giving it a roast. I prefer not to heat plastic in my oven.

ktronik
Posts: 96
Joined: Thu Apr 25, 2013 4:52 am

Re: Pushing the envelope... Where no 3D printer should go...

Post by ktronik » Fri Dec 06, 2013 8:32 am

roller wrote:Just keep your filament in an airtight container with some kitty litter - that'll keep it dry and save you giving it a roast. I prefer not to heat plastic in my oven.
at the time I did not know that, and it rained, and my RED sucked up all the water vapour...gave a funny looking print...as I needed too print, I tried it in the oven, and was amazed at how good the print was...

so I got at least 15 roll here, and can't think of where I could get a biggish container, that is air tight...all the stuff at k-mart and them are just storage boxes... I will have to get on the hunt, as I got the kitty litter...:)

cheers

K

roller
Posts: 1622
Joined: Sat Oct 06, 2012 9:09 pm
Location: Brisbane, Australia

Re: Pushing the envelope... Where no 3D printer should go...

Post by roller » Fri Dec 06, 2013 11:50 am

We have a recycling place in Bris called Reverse Garbage. I get the big drums they ship industrial volumes of stuff in ... this one was full of whey powder from memory. $10 for a big drum and it's much more airtight than the junky containers from the regular stores.

roller
Posts: 1622
Joined: Sat Oct 06, 2012 9:09 pm
Location: Brisbane, Australia

Re: Pushing the envelope... Where no 3D printer should go...

Post by roller » Fri Dec 06, 2013 11:55 am

There's one in Marrickville if your near Sydney ... maybe they have some.

https://www.facebook.com/RevGarb

Marcus
Posts: 526
Joined: Thu Nov 04, 2010 9:58 pm
Location: Germany

Re: Pushing the envelope... Where no 3D printer should go...

Post by Marcus » Fri Dec 06, 2013 1:14 pm

Hello Ktronik,

I adapted a Canon EF-Lens to a modified CCTV Camera for astronomy use.
Some of the CCTV cameras are very sensitive (same chip as some astronomy producs) and will add multiple frames internally, further increasing sensitivity.

Without or with low "sense-up" frame-integration only a few stars are visible;
http://www.ringohr.de/tmp6//Capture%200 ... _57_23.png
http://www.ringohr.de/tmp6/orion.png
if you increase the sense-up value, it will show much more stars - and nebulae!
http://www.ringohr.de/tmp6//Capture%200 ... _56_30.png
http://www.ringohr.de/tmp6/orion-.png

http://ringohr.de/tmp6/orionlong.png - and this is done without tracking and just 1-2 seconds of integration time.

Unfortunately I let my laptop fall off the balcony table, the camera was on stable mount and cables where long enough, and I only broke a 12v adapter... Nothing a soldering iron and a 3D printer could not fix ;-)

Of course a DSLR camera will make nicer images with higher resolution, but will require a longer exposure time (in which nothing can be seen). The CCTV cameras are great for live video (star parties, presentations) and with tracking, a telescope and a dark night sky even more amazing views are possible:
http://www.youtube.com/watch?v=JHiCNmYdkaE (Not my video; The trails are showing when moving to the next object as there well be a 10s lag on max. sense-up).
Not bad for cameras around 50-100$ :-)

cj7hawk
Posts: 103
Joined: Tue Dec 25, 2012 7:52 am

Re: Pushing the envelope... Where no 3D printer should go...

Post by cj7hawk » Sat Dec 07, 2013 1:50 pm

Marcus wrote:Hello Ktronik,

I adapted a Canon EF-Lens to a modified CCTV Camera for astronomy use.
Some of the CCTV cameras are very sensitive (same chip as some astronomy producs) and will add multiple frames internally, further increasing sensitivity.
Some of the board camera boast 0.001 lux now, with multiple frame integration, so it might be cheaper and more effective to print the camera housing entirely.

Though I usually install an image intensifier in-line with the system... Here's a pic I took in the city, through a telescope -
Image

3D printing has made assembly of the kit a lot simpler now :)

David

Marcus
Posts: 526
Joined: Thu Nov 04, 2010 9:58 pm
Location: Germany

Re: Pushing the envelope... Where no 3D printer should go...

Post by Marcus » Sat Dec 07, 2013 8:00 pm

Indeed! Neat shot!
As I change telescope and EF adapter and the housing has a tripod mount, I decided to leave it on :-)
Yes at least the PD has 1024x sense-up.

ktronik
Posts: 96
Joined: Thu Apr 25, 2013 4:52 am

Re: Pushing the envelope... Where no 3D printer should go...

Post by ktronik » Sun Dec 08, 2013 11:38 pm

Wow, I am so looking in to that!! great info thanks again!!

K


Marcus wrote:Hello Ktronik,

I adapted a Canon EF-Lens to a modified CCTV Camera for astronomy use.
Some of the CCTV cameras are very sensitive (same chip as some astronomy producs) and will add multiple frames internally, further increasing sensitivity.

Without or with low "sense-up" frame-integration only a few stars are visible;
http://www.ringohr.de/tmp6//Capture%200 ... _57_23.png
http://www.ringohr.de/tmp6/orion.png
if you increase the sense-up value, it will show much more stars - and nebulae!
http://www.ringohr.de/tmp6//Capture%200 ... _56_30.png
http://www.ringohr.de/tmp6/orion-.png

http://ringohr.de/tmp6/orionlong.png - and this is done without tracking and just 1-2 seconds of integration time.

Unfortunately I let my laptop fall off the balcony table, the camera was on stable mount and cables where long enough, and I only broke a 12v adapter... Nothing a soldering iron and a 3D printer could not fix ;-)

Of course a DSLR camera will make nicer images with higher resolution, but will require a longer exposure time (in which nothing can be seen). The CCTV cameras are great for live video (star parties, presentations) and with tracking, a telescope and a dark night sky even more amazing views are possible:
http://www.youtube.com/watch?v=JHiCNmYdkaE (Not my video; The trails are showing when moving to the next object as there well be a 10s lag on max. sense-up).
Not bad for cameras around 50-100$ :-)

Marcus
Posts: 526
Joined: Thu Nov 04, 2010 9:58 pm
Location: Germany

Re: Pushing the envelope... Where no 3D printer should go...

Post by Marcus » Mon Dec 09, 2013 9:35 am

Good luck :mrgreen:
I wish I had dark skies as in Snake Valley (as in the youtube video)...

I just got a more simple Goto mount, still trying to get time & good weather at the same night.

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