Thermwood routinely applies for patent protection on additive manufacturing technology it develops for its LSAM large format additive systems. During COVID, we received electronic copies of patents that were granted, however, the official hard copies were withheld.

A couple of days before Christmas 2021, we received a package containing the official hard copy of 32 additive manufacturing patents. This was certainly a one-day record for Thermwood and a welcome sight!

In addition to these latest patents, Thermwood already has a large portfolio of earlier issued patents covering the unique, large format (5x10 foot table and larger) 3D print technology it has developed. This LSAM technology is currently the most widely used large scale additive print technology operating in industry today. It’s used in a wide variety of industries including aerospace, transportation, heavy equipment, foundry and large decorative structures. It is being used to produce a diversity of products including aerospace patterns, molds and tooling, heavy equipment foundry patterns, bus chassis, large valve body foundry patterns and trim tooling. It was even used to print the tallest 3D printed structure in the world, the 92 foot tall Al Davis Memorial Torch at Allegiant stadium in Las Vegas.

Thermwood offers this unique patented technology on a wide variety of equipment, the largest, most diverse product offering of its kind available today. It includes a broad selection of machines, including single and dual gantry, fixed and moving table configurations, with both print-only and print-and-trim systems, from 5 by 10 foot to 20 by 60 foot print envelopes. We are working on even larger machines but that’s for another day.

The primary focus of the patented LSAM technology is to reliably and repeatedly produce the highest quality, best fused, most homogeneous printed structures possible from a variety of reinforced thermoplastic polymer composites including those intended to operate at elevated temperatures. Although it is nice to have been granted these patents, it is even nicer to finally have the official hard copies in hand.

Thermwood has added a third print orientation to its LSAM Large Scale Additive Manufacturing systems.

LSAM systems currently can print both horizontal and vertical layers if equipped with the Vertical Layer Print (VLP) option, available on most Thermwood LSAM machines. This new addition adds Angle Layer Printing (ALP) to the VLP option. Angle Layer Printing is the ability to print at a 45 degree angle.

LSAM Angle Layer Printing (ALP) shown

LSAM Regular Vertical Layer Printing (VLP) shown

LSAM Horizontal Layer Printing (HLP) shown

Maximum Print Flexibility

Each print orientation has advantages and limitations for a particular part design. Offering all three on the same machine, for the first time, means maximum print flexibility. All print orientations use the complete LSAM print head including exclusive LSAM print features such as the patented compression wheel and Thermal Sensor Layer Automation.

This helps maintain an even layer temperature throughout the print.  LSAM automatically adjusts the individual layer temperature to provide for superior layer fusion (as seen below).

LSAM machines are currently operating in regular daily industrial production with many existing systems already equipped with Vertical Layer Print capability. The Vertical Layer Print (VLP) option has been replaced with a VLP/ALP option on new machines which offers both vertical and angle layer print capability, in addition to the standard horizontal layer print.

Angle Layer Print (ALP) can be easily and inexpensively added to machines operating in the field that already have the VLP option.

If a machine was purchased without VLP, the entire new VLP/ALP Print option, can be added to most machines already in operation. It can be done in the field, but is a bit more involved.

Broad Line of LSAM Systems Available

Thermwood’s LSAM large scale additive systems are the most widely used large scale composite thermoplastic additive equipment in industrial production today. Virtually all, if not all, large scale additive systems installed in the last several years have been Thermwood LSAMs. Processing a variety of reinforced composite polymers from room temperature ABS and PC to high temperature material such as PSU, PESU and PEI, they are used to produce molds and tools for the aerospace industry, patterns for the foundry industry and for a variety of other unique applications.

LSAM systems are available in sizes from 5x10 foot to 15x60 foot in a variety of configurations including print only and full print and trim, making it the broadest product offering in the large scale additive arena. Print heads are available that can print thermoplastic composite material at rates from 200 pounds per hour to over 500 pounds per hour.

They have a variety of exclusive features including a temperature controlled compression wheel and automatic thermal layer speed control, both of which help assure the best possible fusion between printed layers.

With the addition of Angle Layer Print, these systems have become even more capable and more flexible.

Finished LSAM Angle Layer Print (rear view)

Finished LSAM Angle Layer Print (front view)

The Model 90 is a heavy-duty, high-speed five-axis CNC router specifically developed for high-speed trimming and pattern machining, and is available in single or dual moving aluminum tables with a fixed gantry.  This robust system offers a variety of options and features to tackle a multitude of different applications.

Live Printing

Thermwood will be printing high temp autoclave aerospace tooling on an LSAM Additive Printer 510 LIVE at CAMX 2021 in Dallas, TX, October 19th-21st in Booth #M44B.  LSAM Research Laboratory at Purdue ADDITIVE3D simulation software will be on display as well in adjacent Booth #M44, with Purdue representatives on site for demonstrations.  We will be printing a different material each day, donated by AIRTECH, SABIC AND TECHMER PM.  This promises to be an exciting demonstration of the LSAM Additive Printer Large Scale Additive System! 

Free CAMX 2021 Exhibit Pass & 15% off Conference Registration Fee

Click the link below to Be Our Guest and register for a Free CAMX Exhibit pass and 15% off the Conference Registration Fee.

Free Exhibit Hall Pass Code: FREEEX021

15% off Full Conference Registration Code: FREEFULL21

Make plans now to visit the Kay Bailey Hutchinson Convention Center and stop by Thermwood Booth #M44B to witness this live and in-person!

LSAM Research Laboratory at Purdue ADDITIVE3D Software on Display

Representatives from the recently announced Thermwood Research Laboratory at Purdue University (located in Purdue University's Composites Manufacturing Simulation Center - CSMC) will also be on hand to demonstrate their ADDITVE3D simulation software.

AIRTECH High Temp Material - Tuesday, October 19th

On Tuesday, October 19th, we will be printing AIRTECH PEI DALTRAM I-350CF

SABIC High Temp Material - Wednesday, October 20th

On Wednesday, October 20th we will be printing SABIC LNP™ THERMOCOMP™ AM EC004XXAR1 ULTEM compound.

TECHMER PM High Temp Material - Thursday, October 21st

On Thursday, October 21st, we will be printing TECHMERPM PESU 1810 3DP.

Experts say so at industry seminars, however, major aerospace companies 3D print molds every day that don’t have void or porosity problems. How can this be?

Watch the 8 minute video below and learn the simple answer.

Dale, Indiana based Thermwood Corporation will enter into an LSAM/Thermwood sponsorship arrangement with Columbus, Ohio based Alliance Autosport for one of Thermwood’s own employees. The employee will be racing in the Sports Car Club of America (SCCA) “Runoffs” at the famed Indianapolis Motor Speedway during the last week of September and into October.

The Runoffs is the SCCA’s annual winner-take-all national championship. The competition brings together the best qualified amateur racers from all over the US and Canada to compete across 26 different race car classes for the 58th consecutive year.

The young driver, Gabe Fehribach, is a member of Thermwood’s engineering team. Gabe fulfilled his Runoffs qualification requirements earlier this year after racing at such storied venues as VIRginia International Raceway, Circuit of the Americas, Mid-Ohio Sports Car Course, and Watkins Glen International, among others.

Following three days of qualifying beginning September 28th, Gabe will compete with his winged, open-wheel SCCA Enterprises Formula Enterprises 2 race car the morning of Friday, October 1st against 28 other drivers all running the same spec chassis, Sunoco fuel, Hoosier tires, and Mazda power unit.

Tickets for the three days of racing beginning October 1st can be purchased through the Indianapolis Motor Speedway website.

For more information on Thermwood, the SCCA Runoffs, Alliance Autosport, and Indianapolis Motor Speedway, visit these websites:

http://www.thermwood.com
http://www.scca.com/runoffs
http://www.allianceautosport.com
http://www.indianapolismotorspeedway.com

Live Printing

Thermwood will be printing high temp autoclave aerospace tooling on an LSAM Additive Printer 510 LIVE at RAPID + TCT 2021 in Chicago, IL September 13th-15th.  LSAM Research Laboratory at Purdue ADDITIVE3D Software will be on display as well, with Purdue representatives on site for demonstrations.  We will be printing a different material each day, donated by SABIC, TECHMER PM and AIRTECH.  This promises to be an exciting demonstration of the LSAM Additive Printer Large Scale Additive System. 

Free Rapid + TCT Expo Pass & $100 off Conference Registration Fee

Click the link below to Be Our Guest and register for a Free Rapid + TCT Expo pass and $100 off the Conference Registration Fee.

Use Promo Code: 10016220

Make plans now to visit the McCormick Center and stop by Thermwood booth #E7628 to witness this live and in-person!

LSAM Research Laboratory at Purdue ADDITIVE3D Software on Display

Representatives from the recently announced Thermwood Research Laboratory at Purdue University (located in Purdue University's Composites Manufacturing Simulation Center - CSMC) will also be on hand to demonstrate their ADDITVE3D simulation software.

SABIC High Temp Material - September 13th

On Monday, September 13th we will be printing SABIC LNP™ THERMOCOMP™ AM EC004XXAR1 ULTEM compound.

TECHMER PM High Temp Material - Tuesday, September 14th

On Tuesday, September 14th, we will be printing TECHMERPM PESU 1810 3DP.

AIRTECH High Temp Material - Wednesday, September 15th

On Wednesday, September 15th, we will be printing AIRTECH PEI DALTRAM I-350CF

A Manager's Guide to Large Scale Additive Manufacturing

This 315 page book, currently available as either an eBook or paperback hardcopy, is intended to help non-technical managers understand the basics behind a new technology that is revolutionizing production of large composite molds, tools and other industrial and commercial products.

Where to Purchase

This book is currently available from Amazon either as an electronic file or as a printed hardcopy.

Who This Book is For

If you are a manager in an industrial company who might benefit from large scale additive technology, or, if your company is actively exploring this technology, this book will give you the background you need to participate and make better decisions. It will also help you cut through the confusion and crosstalk that often accompanies a new technology like this.

Thermwood was a key development partner in a Navy ManTech funded program issued to Boeing Research and Technology. The ManTech program was managed by Advanced Technology International (ATI) for the Office of Naval Research (ONR) with funding provided from the Naval Air Systems Command (NAVAIR) Aircraft Equipment Reliability & Maintainability Improvement Program (AERMIP). Fleet Readiness Center East (FRCE) was a key technical contributor for the low cost composite cure tooling technology development.

The Details

Thermwood’s Large Scale Additive Manufacturing (LSAM) machine was selected as the Large Format Additive Manufacturing (LFAM) machine to conduct the technology development. Several unique equipment features of the LSAM machine drove the selection. The high temperature autoclave cure tooling operating environment of 355 degree Fahrenheit and 85 psi provides a challenge for polymer based tool material. Additional composite cure tooling requirements for vacuum integrity and dimensional stability were validated during the development. Neil Graf Office of Naval Research, noted “Composite manufacturing is a strategic technology for future platforms and development of more cost effective tooling solutions would significantly benefit the implementation.”

The Process

FRCE provided a high contour mold line surface to Boeing for generating the composite cure tool. The mold line shape was very aggressive and would stretch the large format additive manufacturing technology processes capability. The spherically shaped portion of the mold line offered the largest challenge, as the unsupported 3D printed angle limitation of approximately 45 degrees provides an interesting obstacle to overcome for the spherical mold line section of the tool. Boeing rotated the 3D print plane 35 degrees to avoid encroachment of the build angle limitation.

Final 3D Print Model

The new innovative build plane approach eliminated the requirement for temporary support material for the aggressive mold line shape. The new build angle would test the LSAM machine limits in an area never explored previously. TechmerPM PESU CF 1810 high temperature print material was used for the composite cure tool. High temperature materials present additional challenges during print over low temperature materials such as ABS CF. Two interim support features were added to compensate for the center of gravity shift of the print. The LSAM machine performed flawlessly during the composite cure tool print. The tool was printed in 7 hours and 26 minutes using 610 lbs of material.

Composite Cure Tool printing on Thermwood LSAM

The composite cure tool was machined in 53 hours using the LSAM gantry router machine. The tool datum features, and removal of interim members, were machined prior to removal from the bead-board. The Thermwood LSAM machine offers the ability to machine and 3D print on a single platform. The composite cure tool mold line part surface achieved at surface profile tolerance of .020” (+/-.010”).

Machining the Composite Cure Tool on Thermwood LSAM

The Boeing Research and Technology (BR&T) laboratory performed functional testing on the LFAM composite cure tool to ensure vacuum integrity and dimensional stability requirements were reached. The LFAM tool performed as expected and achieved all requirements. Several composite parts were fabricated from the tool. The tool durability was assessed during the multiple autoclave cure cycles and fabricated (3) composite parts. The tool maintained dimensional stability and vacuum integrity throughout the functional testing and composite part manufacturing.

LFAM tool after Autoclave Cure

The composite cure tool was printed and NC machined on Thermwood’s Large Scale Additive Manufacturing (LSAM) 1020 machine. The LFAM technology cost savings was estimated at 50% compared to traditional tool fabrication methods, and reduced tool fabrication lead-time by 65%. The cost savings and tool fabrication cycle time reduction could provide enormous benefit to any organizations performing low volume or custom composite part fabrication and repair.

Composite part fabricated from LFAM tool

Nondestructive Inspection (NDI) was performed on the composite parts fabricated on LSAM tools. The NDI results did not indicate any porosity. Due to the complex shape of the composite demonstration part several NDI process were employed. X-ray and C-Scan results did not reveal any delaminations or defects.

The Bottom Line

The program benefited from a cooperative effort among several contributors to achieve success. The partnership between industrial technology leaders, Boeing and Thermwood coupled with the Office of Naval Research’s drive to transition technology, led to the successful program. “Collaborations such as this help expand the scope of capabilities of emerging large scale additive technology by addressing real world challenges that would be difficult for any single entity to define and address by itself. We look forward to new challenges moving forward”, says Thermwood CEO, Ken Susnjara.

Additional development is key to expand LFAM composite cure tooling implementation. Boeing Associate Technical Fellow Michael Matlack commented “The program provided significant results in validating additive manufacturing as a viable method of producing lower cost, capable tooling with substantial time savings over traditional methods.”

For AWFS 2021, Thermwood Corporation, an innovator in the design and manufacture of 3 and 5 Axis CNC Routers, is proud to demonstrate two systems. We’ll have our versatile and affordable CabinetShop 43 510-8 and our powerful Cut Ready Cut Center machining on site.

Cabinetshop 43

We will be machining plastic sheets, signs, outdoor furniture and nested based applications on our CabinetShop 43 510-8 CNC Router. This machine features a 5'x10' base with a 5'x8' table, allowing it to offer 21 tooling positions with its automatic bar style tool changer. It also has an improved dual pipe dust collection system, programmable pop-up pins, auto tool length measurement and an automatic lubrication system. This configuration is also available as a 512-10, with a 10 foot table on a 12 foot base. Auto labeling and an unload rake system for nested based production are also available as an option. 

Cut Ready Cut Center

Thermwood will also be demonstrating the award-winning Cut Ready Cut Center. This powerful system helps you quickly and easily create most products a cabinet shop would want to make without a CNC programmer (cabinets, furniture, doors, drawers, moldings, stair stringers and much more). Just tell it what you want to make via a simple touch-screen interface, and it makes it. Or, you can operate it as a traditional CNC router.  

Most people can operate it with little or no training or guidance. It is complete, fully contained with all the ancillary equipment smoothly integrated into a package that almost runs itself.

Check us out in Booth #1701

We'll be demonstrating live on both machines during the show, as well as operating an eCabinet Systems kiosk.  Our eCabinet Systems expert will be designing nested-based applications on the fly to send to the CabinetShop 43 to be machined.  In addition to our Cut Center live demonstrations, we will also have two Cut Ready kiosks, where you can explore the software and see just how easy it is to design most things a cabinet shop would want to make. 

Please visit our booth (#1701) and speak to a Thermwood representative to learn more about these two powerful and affordable additions to any shop!

What are the Differences Between a Cut Center and a CNC Router?

Take a Tour of the Cut Ready Cut Center

How to Design a Cabinet and Add it to the Job in Cut Ready

Learn How Simple it is to Machine a Cabinet Job on the Cut Ready Cut Center

Exploring Cut Ready's Leveling Feature