Rapid Prototyping | Cass Precision Machining Rapid Prototyping | Cass Precision Machining

Rapid Prototyping with Cass-Rapid Proto Machining

Cass-Rapid Proto Machining (C-RPM) is a specialized rapid prototyping service that provides our customers with prototype, build-to-print contract machined parts with accelerated delivery responsiveness. Whether you need a complex prototype, quick-turn prototype, or are looking to try numerous prototype designs, Cass has you covered with our C-RPM service.

Our expert C-RPM team offers quick-turn responses in each phase of prototyping: feasibility, small quantity fitment builds, and concept/pre-production demonstration runs. Our goal is to supply you with a complete part. We use our C-RPM material consulting, rapid prototype machining expertise, and coordinated services to deliver the finish you desire. With part sizes ranging from up to 8 inches in diameter to 26 inches in overall length, our C-RPM team will provide quick responses to your rapid prototyping needs.

C-RPM Rapid Prototyping Machines

Cass Precision Machining has made a concerted effort to ramp up our C-RPM initiatives by investing in two rapid prototyping machines that help us turn out quality prototype parts in a timely fashion.


The Tsugami M08SY Turning Center with a Y-axis allows you to perform highly complex machining, such as turning, drilling, boring, cross-drilling, and CNC milling. The main and sub-spindle have integral built-in spindle motors which minimize vibration and provide superior accel/decel for heavy-duty cutting and fine finishing. The Y-axis enables off-center CNC milling of complex parts, and incorporating the sub-spindle eliminates the need for secondary operations.

Ideal for a wide range of rapid prototyping applications, the M08SY provides high-accuracy, high-production machining. The Y-axis enables turret tool positioning above or below the center. The robust 12-position turret mounted to the Y-axis allows users to mount driven tooling at any turret position for use on the main or sub-spindle. This tool zone flexibility coupled with the C-axis provides the capability and flexibility to machine virtually any feature and drop your part completely in one clamping. Additionally, the reliable M08SY features a very robust yet compact base. The X and Y feature massive box way construction allowing for superior rigidity and dampening when taking heavy cuts. The Z slide features heavy-duty linear roller guideways for speed and rigidity. The three axes offer exceptional accuracy and long machine life.


The new DNM series includes three machines: the DNM 4500, 5700, and 6700, stepped up in size and capacity. In general, the series offers larger cutting space by 6%, bigger table sizes by 14%, and heavier loads by 25%, while maintaining the same overall footprint as the previous generation. For the three models, the X-axis travel is 800 mm (31.5 in.), 1,050 mm (41.3 in.), and 1,300 mm (51 in.). The Y-axis is 450 mm (17.7 in.), 570 mm (22.4 in.), and 670 mm (26.4 in.). The Z-axis is 510 mm (20 in.), 510 mm (20 in.), and 625 mm (24.6 in.). The new DNM series features direct-coupled, thru-coolant type spindles as standard, providing 8,000 rpm (15/11 kW) and 12,000 rpm (18.5/11 kW).

Vibration and noise are greatly reduced during high-speed operations, and thermal displacement is also improved. The direct drive spindles also contribute to faster accel/decel rates, and tool change times have also been optimized to reduce non-cutting time. Tool storage ranges from 30 to 60 stations. Additionally, the thru-the-spindle coolant design keeps the coolant exactly where it needs to be—at the tooltip—and machine operators do not have to keep adjusting and monitoring coolant nozzles.

Other specifications include a Big Plus 40 tool taper interface and table sizes of 1,000 x 450 mm (39.4 x 17.7 in.), 1,300 x 570 mm (51.2 x 21.3 in.), and 1,500 x 670 mm (59.1 x 26.4 in.). Maximum table loads are 600 kg (1322.8 lbs.), 1,000 kg (2204.6 lbs.), and 1,300 kg (2866 lbs.). One of the key highlights of the control system is the standard “Easy Operation Package” (EOP), developed by Doosan that provides numerous functions designed for expedient operation via pop-up windows and “hot keys.” For example, adaptive federate control, tool management, tool load monitoring, table setup, and tool changer recovery are among the several convenient choices.

The C-RPM Rapid Prototyping Process


C-RPM can handle a wide range of materials, including:

  • Alloys
  • Carbon
  • Stainless Steel
  • Titanium
  • Aluminum
  • Brass
  • Bronze
  • Machinable Plastics
  • And More

Challenge us with your material requirements!

C-RPM Rapid Prototype Machining

CNC milling and live tool lathe machines are the cornerstones of the cell. These machines have broader machining and grinding capabilities, including:

  • Swiss Machining
  • CNC Turning & Vertical Milling
  • Finish Grinding

Coordinated Outside Services

C-RPM also features the coordinated outside services Cass customers have come to expect, including:

  • Anodizing
  • Finishing
  • Heat Treating
  • Plating
  • Shot Peening
  • Custom Packaging
  • And More

Have Questions or Want a Quote?

Our rapid prototype machining experts are happy to help!

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