1990 Brother TC225 VMC cutting first multiple duplicate parts. Experimenting with different methods of removing metal just to see how well different methods work. I am an inventor/artist/construction worker and have been learning how to machine on a manual grizzly mill and lathe for the past two years, building prototypes of a new type of patent pending no contact seal positive displacement heat engine that has only one moving assembly and one non-moving assembly. This new engine moves the working fluid through one or more fixed volume chambers and uses the resulting vector forces to do work or visa versa. Vector forces produced by the new engine fall into two categories. The first category are the vector forces resulting from the re-direction of the fluid within the chamber(s) and are well known and documented. The second category of vector forces are not proven or documented just theory. These vector forces are created by a momentary difference in pressure within a common fluid volume and are part of a new category of displacement engine called CONSTANT VOLUME DISPLACEMENT.
[ full info @ www.robocnc.nl ] For my DIY i made a 4th axis. The Indexer is driven by a 2Nm stepper and its own driver. Gear ratio is 6:1 for stepper to chuck. Now its time to learn some new tricks in the cam software.. So of course there will be some rotary projects in the future… Thanks for watching and voting of course , hope you enjoy…
Axis Test and Introduction video of my home Cheers, Marc / blog.ncode.ca
A little made from legos (NXT). It holds a Dremel rotary tool with a rotary saw bit. Can mill blocks up to 2′x2′x2′. Can cut through a variety of materials, but the video only shows cardboard for that was all I had at the moment. Has an xy table and z directly moving the spindle up and down. A prior design only had an x table and y directly moved the spindle, but this design was unsuccessful. Precision isn’t terrible, but not great. This is mainly due to the flexible nature of the lego elements and gear wiggle room.
Complete dental Bridge machining videos, in 3 and 5 axis.
With WorkNC Dental CAD/CAM software.
Dental – teeth – implant machining. Wissner machine. WorkNC Dental CAD-CAM software by Sescoi
Visit www.datron.com. 3 ½ up to 5 axis milling machine for dental production with high reliability, speed and precision. The highly precise design with a rigid Granite table and the fast dynamic control meets the growing demands of the dental CAD/CAM market. Solid and reliable machine concept — Granite/Steel design. Water-cooled, high-frequency spindle with a rotational speed of up to 60,000 rpm. Automatic tool-length measuring with tool-breakage detection. Set-up dimensions: 1,300 mm x 1,300 mm x 1,950 mm. Power connection: 230V, approx. 2 kW, air pressure min. 6.5 bar. Weight approx. 800 kg. Automatic tool change. 3, 4 & 5 Axis. Blank materials: Zirconium, CoCr, Titan, Alloys, PMMA, Nano Composites, Wax, Al-Oxide.
2.5 hour time lapse of my CNC test cutting (7.5″ diameter x 1.5″ tall); still need some tweaking but almost there.
The video is provided by http://www.johncox.net.
This Video shows just a small portion of the capability of this very complex mill combination. Two spindles, a 12 station turret with live tooling, and a 5 axis milling head with a 40 tool changer makes this one of the most incredible machines currently made. This machine enables us to run parts that would normally take many operations and complete them in a single step.
5 axis , machining trial project – wooden sculpture from solid birch wood. AJ Grupp, Estonia, www.5-axis-cnc.com
Copyright (c) 2010 Nadine Davis
Injection mould making is taking a leap forward in terms of productivity and accuracy through the acceptance of 5 axis machining technology which has been benefiting other sectors of the manufacturing industry for some time. Being able to machine all 5 sides of a component using the same set-up saves time and reduces the possibility of human error. To be able to transfer these benefits to injection mould making has been a boon for this section of the manufacturing industry. Finding the correct work piece holding system is crucial to the success of the process, with quality engineered solutions emerging to delivery productivity gains and vastly reduce waste.
There is a steep learning curve with 5 axis machining for new operators, and one of the areas where a new player can have difficulty is in holding the work piece so that five sides of the piece can be machined effectively. The following information on the two most common methods may be of assistance to new operators:
Mechanical Clamping Systems:
These are the most common systems, and resemble a vice but with extra clamping force. This method allows minimal interference with the cutting area and enables the exposed surfaces to be machined with a high degree of accuracy.
This clamping system can hold small to medium sized work pieces quite easily, but for larger pieces, a riser is recommended in order to reach the work piece. These are not common type clamps but highly engineered pieces of equipment which apply force were it is most needed. Additional security is provided by the use of pointed grippers in the vice jaws.
A common method is to fix the work piece to a magnetic pedestal. Because the work piece is then elevated, the 5 sides can be machined in one set-up, which also dramatically reduces the margin for error. The actual machining processes don’t change the magnetic pull. This is because the 5 axis high speed methods require a much higher spindle speed, far lighter chip loads and faster feeds overall. These reduce torque and cutter pressure, so there is no danger of the work piece moving while being machined.
Another method is the use of magnetic pallets which enable the movement of the work piece from one machine to another. This method requires careful planning and design at the outset, but pays dividends in the savings gained during the manufacturing process.
Business owners who invest in high-end 5 axis machines and then skimp on the cost of work piece holding systems will not get the full benefit of the efficiency and productivity gains available with this machining technology. Operators at CNC Townsville workshops are already proving that these systems are worth the investment.
Article from articlesbase.com
This book Brings together for the first time all the major aspects of the five-axis . This Machine is transforming the way many common everyday products are manufactured, from furniture to airplanes. this book also includes a windows 95 software program that allows the reader to enter their own specific cost information and easily calculate the cost to fabricate a part.