After priming them with "National Treasure" (both of them) we took a brief trip up to Washington, DC. The boys loved it!
Green Tree Frog tadpole:
Older frogs, in a larger watergarden (same house):
The boys got Crazy Carts for their birthday, which is also the first day of school. So they had a chance to play with them the weekend before...
We went to the keys; it was windy & rough so we mostly did touristy-stuff, including the new "Aquarium Encounters" in Marathon which is pretty cool.
We stopped by Animal Kingdom on the way up to Neptune Beach; Jake loved the hippo, Drew was more into the rides.
In Neptune Beach we made up for lost time, fishing 5 days in a row. The weather was great and the fish were hot; we tagged 2-3 every day, easily hitting Graddaddy's goal of 10 tags for the week. We also picked up 2 starfish, 2 stingrays, a big redfish, and saw lots of dolphins and other sea life.
I've spent sort a lot of time figuring out how to print and polish metals. Just because it's neat. There was a LOT of trial and error, and very little actual material I could find reliably, so I hope this log helps any others (or future me) reproduce the results.
- ProtoPasta has the best (sturdiest) material, but ColorFab's stuff polishes better. These will be softer than PLA but sturdy enough for decorative use.
- Virtual Foundry Filamet can be sintered for a SOLID, ALL-METAL part. Print at 30mm/sec, dial it in for your printer. 100% infill if possible
- Coconut charcoal: ~1" in the bottom of a cup, then cover the part with 1-2" of coconut (cf: Hadar's instructions).
- De-bind with VF's process (1st three steps below, but use h1: 0)
- Sinter at 1580* for at least 4h for small parts (<5mm at the thickest/widest) Longer hold time will consume more coconut, so use a taller vessel / more nut.
- Allow to cool in place / slowly. Once it's well under 700F you should be able to remove it from the coconut.
- I'm still learning about sintering, but I THINK there's a pretty narrow range of effective temps (like 1530-1580), and the MBP or coconut seem to insulate VERY WELL. So holding for a very long time will produce a more thoroughly-sintered part
3D Printed Fidget Spinners
I got these designs off of a site called http://www.thingiverse.com, where you can design templates and share them with the public, or download someone else’s. If you have a 3D printer, I highly suggest you use this site. I managed to find some designs and press the bearings and/or steel balls into them. Enjoy!
Shark fin spinner- http://www.thingiverse.com/thing:1936727
Steel ball spinner- http://www.thingiverse.com/thing:1821445
Shark fin spinner Triangular spinner Steel ball spinner
Spinner w/ shark "fins" Spinner shaped like a triangle Spinner w/ steel balls for weights
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