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Found an old Hembrug lathe I might be able to get for free, is it worth it or is there no reviving this ole piece of nice machinery? I have a pretty reasonable knowledge on how to work on a lathe, fixing one is another matter. The carriage goes pretty smooth still and so do all the other parts on it.
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It has minimal rust on the chuck and bed and seems like it would be easily cleaned up. I have no idea if the engine is still running, and I am not sure how many internal mechanical parts are missing, it seems to be missing a gearbox for the quick change box and a spindle speed selector. I am not sure if it is a reasonable project to take on. Is it even possible to find such specific parts for this specific machine? It depends on a few things, the most important of which is the condition of the ways. Some minor surface rust isn't the end of the world, and neither are fairly deep but small gouges and nicks. The problem lies in the ways either being worn until they are no longer true, or corroded/bend/damaged etc.
The only way to repair worn ways is by hand scraping, a skill which takes a fairly long time to learn, and requires a fundamental understanding of the mechanics of machine tools in order to do properly. As someone previously mentioned, the other big consideration is the headstock bearings.
If the headstock bearings are shot, the lathe won't be worth a damn. On a lot of the older lathes, the headstock bearings were babbit or bronze, and you could replace those fairly easily and cheaply, especially if you have access to another lathe.
If it's a set of tapered roller bearings, you're looking at a pretty big expense. Everything else is adjusting the gibs, and maybe replacing a lead screw or two (McMaster-Carr sells leadscrews for peanuts). Finally, the motors on many old lathes are three phase, so you'll need to get a single phase motor that will power the lathe, or figure out how to get 3-phase to the machine via a rotary phase converter or VFD. That's about it.
The only other thing I'd warn you about is that once you start buying machine tools, it's hard to stop. Edit: to check the ways, take a straight edge (something with an accuracy of a couple thou over 12' or so) and lay it along the ways. Look for light gaps, or take feeler gauges and try to fit them between the straight edge and the ways. Most of the wear will be concentrated in the portion of the ways closest to the chuck, as this is where a majority of machining processes take place. For bearings, you can chuck a 12'-18' piece of round bar stock up in the lathe, and put a dial indicator on the chuck and measure the deflection when you push on the bar. Rotate the dial indicator and repeat, and that'll give you a pretty good indication of bearing wear.
If all else fails, if the lathe runs, cut a test bar and mic it. That will give you a good indication of overall machine health. • • • • • • •. For a crude test of the bearings check that the spindle turns smoothly with the drive disengaged and that you can't wiggle it up and down or back and forth with your hands. This won't tell you that they are good but at least it will warn you if they are totally shot. A bit of longitudinal play is not a showstopper as there is often an adjustment for it (it's not a good sign, though, and will have to be fixed).
If I could get it free I'd take it regardless of condition but I have room to store junk and am stingy enough to want to salvage parts and material rather than buy new. • • • • • • •.
Гдз По Биологии 5 Класс Пасечник Рабочая Тетрадь 2014. I am an artist who works with metal and wood (my latest project ) I have pretty good knowledge of how to work with metal and wood. I also am a quick learner and don't give up on projects untill they're done. I am relatively confident I can learn how this machine works as long as I have to correct books and literature or internet forums. The question is rather how fixable this equipment is and if it doesnt require either the same amount of money of buying a secondhand one or if the parts are even available • • • • • • •. Thanks for your insight!
I am dutch, and learnt to work with a lathe in dutch nomenclature, so I'm not 100% sure on the definitions. Do you mean with power feed that the motor moves the carriage on a set speed? I am not sure what you mean by threading? Do you mean to cut threads in stock through use of the motorized functions?
Also this is a dutch machine (maybe that is why you don't know it), it is supposed to be top of the line albeit of a completely different era when the Netherlands was still an industrial powerhouse. I would be fine with cutting metal by manually moving the carriage.
• • • • • • •. Provided that the parts that are there are mechanically sound, that sounds reasonable. If they are sound, and if there is a time limit to how long this lathe is available, I think I'd grab it now and do the research at my leisure to find out what is missing and what it would cost to buy those parts. Best case scenario, you find someone with those parts or a way to adapt something to them, worst case scenario you aren't able to find anything so you part that one out and use the money plus the 600-800 budget you were going to use to find one in immediate working condition.
Good luck with it. • • • • • • •.