3D Print revisited

[Joules]

As I was rummaging through some of my old prints I happened on an early test project.  This was probably made about 2yrs ago on a Rostock Max V1 printer.  Best we could manage back then was 0.2mm layers.



The black print was the original and the white print I made a couple of days ago.  The black was printed as one part with support that took hours to clean up, the model also required lots of superglue to fix where it delaminated as its all thin section from the arms outwards.    The white print was done as two halves and then welded together, this one printed in 0.1mm layers and much stronger even the thin section arms, and once welded much stiffer.




Fortunately I found an app that used a commercial built anemometer I was able to use with my own design.



Photo is a bit blurry as it's hard to blow and photograph at the same time.  Now wouldn't this look cool nickel plated    Wonder who planted that idea.....

[tonybraz]

 Hi I have built my own Rostock and am interested to know if you use a heated bed and which type of filament you use ( I use 3mm diameter ) 
 Cheers Tony

[Joules]

Hi Tony,
           the SeeMeCNC Rostock started out with the origional head and 1.75mm filament.  We started with PLA, and after a few months fitted an E3D V5 head for greatly improved print results, less jamming and blobs on the prints.  The heated bed was the standard one supplied, but we added an external 24vdc supply to provide more current for the head and heated bed, glass plate is 10mm to provide a good heat mass.  Our Rostock is currently under used and due a refit to bring it upto V2 specification.

[Pete49]

Joules I don't suppose you could link a stl file for this item? My weather station is out of use for now as I need new cups and looks like these would do it. Just asking as I'm crap at 3D ...drawing in general actually.
Pete

[Joules]

Pete, do you have dimensions and picture of the what you want.  Will model what you need if I can

[Joules]

Pete, have a look at this.  You may need to sign up for a free account.

https://grabcad.com/library/anemometer-head-1

I hope the modifications I have made to the model make it easier to print.  ABS you can just glue it together, PLA it needs welding with a fine point soldering tool.

            Joules

[Pete49]

Hi Joules. I just signed up to grabcad so thank you. For exterior things like this I use ABS as PLA tends to breakdown in time. A question about your setup on the tablet? I was wondering how it can send the info to the tablet. Does it use a USB port or some such. Sorry about all the questions but its how I learn things nowdays and do like technology. 
Pete

[Joules]

Pete, the tablet has a built in magnetic sensor.  The anemometer has four holes in its base, each of these can take a small magnet, in this case two.  The app picks up the changing field as the magnets rotate and it calculates the speed of rotation.

The hole in the centre is for two 8mm ballraces or other low friction bearing.

Weather station radiation shield holding up here, but then it seems like weeks since we had any sunshine.