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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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RANT/follow up re Query - fly cutter tool grinding geometry
On Jul 19, 12:06 am, " wrote:
On Jul 17, 6:39 am, Andrew VK3BFA wrote: Here at Chaos Central the bench grinder has been hanging around for years, grinding shovels, axes, plastic, aluminium - anything and everything. Obviously, I had it BEFORE I did tool grinding at school and learnt that it shouldn't be used for such things...will get a decent wheel as soon as I can organise myself to find one.... And I will keep experimenting - just need to get some more steel to grind...... Andrew VK3BFA. Try googling " Dressing grinding wheel ". Thats on the list too - but a flat diamond dresser like I learned to use at school. Funny, machining started as a sideline to homebrew electronics stuff - its taken on a life of its own!....the fly cutter is to machine some plastic I am making into spacers for 450R ladder line from a HF doublet antenna - the wife has now got her ham license and wants a station inside the house, so am putting one together for her....the metalworking skills are coming in useful, the new mast outside her craft room window is mostly built (with removable couplings turned from steel, with drain holes, and water barriers, and nicely turned pins to hold them together....got a bit carried away, but hey, I can now do it, so why not...all good practice) and reasonable welds to hold the tubing together - the spacers are to keep the ladder line clear of the pole.....so it doesnt whip against the pole and create disturbance in the cosmic flow of Domestic Harmony.... (Honey, I know its 3am, its ****ing down with rain, but I can hear something banging around outside - will you go and have a look?) Bought some 8mm steel rod today at the hardware, will practice on that to get geometry right - and even it will machine soft plastic of the kitchen cutting board variety. The "real" fly cutter can wait till I have a need for it on hard materials. (and learn to machine a bit better as well...) Having fun, stuffing around, in between all the other stuff that gets in the way - ie, wife, kids, dog, house, job, etc etc.... So much to learn, so little time. While you are learning machining, I am learning about Analog Devices DDS's. Have fun. Dan Dan, I suspect the AD devices are like machining - wade through the stuff written by guys in long robes wearing pointy hats covered in stars, and it devolves down to what does the job you need it to do. And its a new language which doesn't help either - but sheer determination and doggedness will get there in the end. It doesn't matter you can go and BUY one - thats not the point... And thanks everyone for the comments - some not necessarily making much sense now, but in time they will ..... Andrew VK3BFA. |
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