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Hickman Boat Works
CNC Router Reduces Cost and Improves Accuracy of Wooden Boats
Hickman was interested in saving time and improving accuracy by moving to CNC machining. CNC has the advantage that the user generates a CAD model of the product and then uses the CAD model as the basis of a program that guides the machine tool to cut out all of the parts needed to build it. CNC machining is much more accurate because the program rather than the craftsman guides the machine and additional parts can be created from the program with little additional effort. When he first looked at CNC machines they were expensive and he did not feel that he could justify purchasing a machine because he would be using it only periodically.
“Then I discovered that Techno offers a great machine – the LC 4896 CNC router – for a very reasonable price,” Hickman said. “With a 48 by 96 inch table the router is large enough to handle every piece that goes in a wooden boat. The machine and software was within our budget. Techno provides excellent support and has provided information that helps me to get the most out of the machine.”Techno’s LC Series machine provides ball screws on all three axes, offering smooth motion, a high level of accuracy and repeatability and minimal maintenance. A closed loop servo control system provides constant position feedback, higher power, and smooth continuous motion that eliminates the possibility of losing position in the middle of a part. The machine comes fully assembled and includes Techno’s Windows-based CNC G-code interface with free lifetime software upgrades.
The Techno router has substantially improved Hickman's business by helping him improve accuracy and save time.
More efficient process
The CNC router enables a more efficient process for building wooden boats. The existing boat is measured using the same methods that were used in the past. But the lines that are produced by the measurement process are now used to create a 3D model of the boat. The model allows Hickman to pull measurements from the existing hull and compare these measurements to the model without totally disassembling the boat. Then Hickman pulls sections from the model at the frame stations to generate the profile of the wooden frame members. For each member, he generates a CNC program that automatically produces the part on the router. This eliminates the need to produce 2D drawings of the various structural members.
[above] Boat Parts
He then moves the CNC program to the router, loads one or several pieces of wood onto the router table and pushes the switch to start the router. The router then automatically produces the parts included in the program. This approach greatly reduces the need for skilled labor since the machine operates automatically, requiring only loading and unloading. Parts are produced to a much higher level of accuracy than in the past – 0.001 inch repeatability and 0.0002 inch resolution.
[above] These pictures show a stand-up paddleboard designed by Travis Hickman, with parts cut on the Techno CNC router.
Rebuilding a racing boat
Hickman has used to these methods to rebuild and build from scratch other vintage boats. For example, he restored Bill and Judy Fisk's Vintage Hydroplane GP-317 with a 7 liter Lauterbach engine. The boat was built in 1971 and raced frequently ever since. The restoration started with a full inspection of the hull after the decks were removed. The inspection revealed many broken pieces and weak joints. The damage to the hull along with repairs made during her long racing carrier dictated rebuilding the boat from scratch. Hickman created the 3D model and let the customer view it and pick out the colors. After Hickman created the CNC programs, it took only 45 minutes to cut out the pieces for the frame on the CNC router compared to 70 hours that would have been required on a bandsaw.
“The Techno CNC router has substantially improved our business by helping us improve accuracy and save time,” Hickman concluded. “The router has paid for itself many times over by saving time in producing frame parts. In particular, the router opens up the potential for making multiple boats at a considerably lower cost than was required to make the first one. We can also make repair parts very quickly and easily. All in all, the router has helped us be more profitable and make our products more appealing to a broader audience.”
For more information on the machine described in this article, contact Techno Inc., 2101 Jericho Turnpike, New Hyde Park, NY 11040. Phone: 516-328-3970, Fax: 516-358-2576, E-mail: www.technocnc.comWeb site: