Popular Woodworking 2006-11 № 158, страница 28
14" STEEL-FRAME BAND SAWS
*Prices from Amazon.com when available. ** Includes optional mobile base. *Prices from Amazon.com when available. ** Includes optional mobile base. A FEW GUIDING PRINCIPLES Above are the guides on the Grizzly band saw. They are the traditional bearing style, with the side guides positioned on both sides of the blade to keep the blade from moving left or right during the cut. The Grizzly's side guides are actually two pairs of guides (four guides total) that give broader support for wider blades. The thrust bearing (behind the blade) is also a bearing, but the blade pushes against the flat of the bearing. This design has worked for many years, but the guide at right is a more efficient thrust design. Above are the guides from the Rikon band saw. As are the guides on the Grizzly, they are all of bearing design. The side guides in this case are single guides, which will be fine, but the double bearings on the Grizzly will provide better support for wider blades. The thrust bearing on this saw is mounted so the rear of the blade rides on the edge of the bearing, using the bearing in the way it's designed. This will actually allow the blade to ride against the bearing for excellent support. The guides on the Laguna (above) are unique in the test. They use ceramic blocks to gu ide the blade both at the sides and at the rear. Ceram ic guides are a good guide material as they pull heat away from the blade and extend the life of the blade. One drawback is that they will wear and will have to be adjusted more often than bearing-style guides. While there are other ceramic block guides on the market, this configuration is designed specifically for Laguna saws. PW — DT 44 Popular Woodworking November 2006 |
