![]() Answers must contain an explanation using engineering logic, and assertions of fact must be supported by links to credible sources.īe substantive. Racism, sexism, or any other form of bigotry will not be tolerated.ĭon't answer if you aren't knowledgeable. All users are expected to behave with courtesy. Note that questions must still be specific to engineering and not a general opinion survey.īe respectful to other users. Mechanical, Electrical, Civil, Chemical, and Computer are reserved for technical questions only.ĭiscussion can be used for general questions that apply to multiple disciplines, including some workplace topics. Review the wiki prior to posting.Īvoid questions that can easily be answered by searching on the internet.Īvoid questions that have already be answered by a post in the FAQ section of the wiki. ![]() Most general career related questions should be placed in the Monday Career Megathread. Post titles must be a question about engineering and provide context - be specific. Perhaps it refers to the tension spring in a specific machine.Call for Engineers: Tell us about your job! (2020) New to AskEngineers? Read our subreddit rules and FAQ page before posting! Topic Filters They also address recommended tension, but I can't decipher it since it is in units of inches. (Hope the formatting of this table is retained in posting - I've had trouble with that before.) I could follow that up if anybody is interested. This was in a report to The Hack and Band Institute, as I recall. ![]() Maybe they thought 30" is about the biggest wheel diameter thay could realistically recommend. But the essence of the table is that wheel diameter recommendations are directly related to blade thickness and have no relationship with blade width. Moreover, I had to request re-transmission due to unreadible fax, and even the re-transmission was defective to the extent that I can't just post it here (and don't have permission, anyway). It was a fax of a page out of a third-party document. Unfortunately, the info from Starrett was not on-line, so I can't provide a link here. I've been using it for a couple of decades still sitting on the 4" high screw jacks that I used to wrestle it into the garage from the street.įollowing up on the question of minimum wheel diameter for various blades: After my last post I sent queries to Starrett and to Lenox asking if they had any recommendations. High and off-center center of gravity and a low door height. I dreamed of doing exactly the same thing years ago but before I got a round tuit, I lucked out and won a 26" DoAll from Lockheed M&S surplus outlet. Sounds like a neat project, Corvus corax. Therefore, I don't think a three or a four wheel saw like the superb saw that George Barnes built would be suited to resawing work.Īn advantage of buying replacement wheels from a known manufacturer (who will hopefully still be around when you need replacement tires) is that you will also be able to obtain rubber tires matched to the wheels and the wheels will already be recessed to retain the tires and will be properly crowned for blade tracking. I think that blades used for resawing should be both wide, to provide the coarse tooth spacing used for resawing, and thick, for stiffness and to withstand high tension for straight tracking. Alternating stress at the surface of a blade would be closely related to fatigue life, and stress in the blade as it passes over a wheel would be directly related to blade thickness for a given tension and inversely related to wheel diameter, but would not vary with blade width. Capnbondo, I think that the critical factor for fatigue life of any particular blade type as a function of wheel diameter (and tension) would be blade thickness, rather than blade width.
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