Dolphin mono-fin swimming

Fin swimming is an interesting and fast swimming sport.
Today I stumbled upon this (for me new) fin which completely fits in my own line of designs (dolphin fin page)

Dol-fin orca.

Interesting youtube movies
150m dynamic
 clear water

Dolphin bubble rings

Dolphin bubble rings.

Blowing bubble rings is do-able but not easy, but what dophins can do with them is amzaing, what control!

Dolphins on
youtube1
youtube2
 Obviously the dolphins re-energize the bubble rings through the pressure wave in front of their domed skull.
Will try that next time in the pool, although I will have to find something larger than my own skull to produce this pressure wave.

A kid blowing rings in a pool also on youtube

CNC Software for Lathe or Milling of CAD DXF Files

12 March 2012 Sydney time - Dolphin PartMaster CNC Software Version 11 has been released for free trial download on CADDIT.net Australia. New features of the new version include Windows 7 support, improved CNC toolpath generation, additional PM3D tool for importing profiles from STEP and IGES models, specialized gear design software, font editor for engraving, a CNC-file organizer and more. PartMaster 11 is major update in the Dolphin CNC Software "low-cost series".

For those unfamiliar with PartMaster, here are some major features:

• Intuitive visual editing environment for creating CNC cycles from CAD data
• Milling, Lathe AND Wire EDM machine support (with new price discounts for combination licenses)
• DXF, IGES and STEP profile import. Surface profiles from STEP / IGES are extracted via the new PM3D tool.
• Flexible toolpath creation, prismatic machining, area clear, pocketing, drilling, extended text-font engraving, etc
• Fourth axis milling support. Backplot animation and verification.
• Fully-programmable post processor support for all kinds of CNC controllers. CADDIT/Dolphin offer additional custom-built post-processor options as well.

Note that Dolphin PartMaster is an ideal solution for DXF profile milling/machining, pocketing, engraving, lathe profile turning etc it is limited at complex surface full simultaneous 3-axis support for which we still recommend either Alibre CAM Expert or perhaps T-FLEX CAM. An independent review of Dolphin PartMaster on CNCZone featuring our CNC Lathe module can be read HERE. A partner has also set up a small YouTube channel with many of the usual Dolphin PartMaster tutorials HERE. Below is an example using PartMaster in a CNC Lathe operation:

Download HERE a free 30-day trial for the CNC milling/lathe module for Dolphin PartMaster (including a free CAD system for drawing). Questions about Dolphin PartMaster or a request for a demonstration can be submitted HERE.