This writer talks about an "inline speed control" for a grinder.
Thanks,
Mike
Though I don't know for sure, I would think it is an inline switch to slow or speed up the grinder/grinding speed, similar to a dimmer switch for a light. If they (in the link) suspect the Craftsman is adaptable for one, you might ask at Sears what it is and/or if it's available.
Sonny
for my Craftsman grinder? I need lower speeds for my lathe tools.
A common in line speed control is one sold to slow down routers. You plug into the speed control and dial the speed you want.
Keep in mind yo need a different type speed control for a universal motor, one with brushes, than one that works with a capacitor start motor, those found on larger more stationary equipment.
for my Craftsman grinder? I need lower speeds for my lathe tools.
I haven't heard of any that would work on this type of motor. For a motor with brushes, such as a drill, router etc there are speed controls available.
Only "universal" motors can have speed control of the "dimmer-switch" type. Those with a capacitor, the more usual motors fitted to grinders etc, cannot be varied in speed. If a manufacturer has built a speed control into a machine it is, of course, going to work fine.
The Craftsman quotes a 1/6th hp motor - forget it. The moment you start trying to grind something it'll slow right down
This writer talks about an "inline speed control" for a grinder.
Thanks, ============================================================================================= He basically doesn't know what he is talking about.
Stay away from dimmer switches. Motor variometers are much better choice. I don't know that your motor can handle variable speed.
If you bought a 3450 grinder too bad. Way too fast. Even 1725-1750 in my mind is too fast.
If you have a grinder 3450, get a set of pillow blocks, and sheaves and step down the speed. Remount the stone on the new shaft Use a sheave like used on drill presses so you can adjust your speed.
Most bench grinders and almost certainly the pictured Craftsman use induction motors and speed control is not practical. There is little reason to use anything BUT an induction motor on a bench grinder UNLESS it was designed with the intention of having variable speed. The common speed controls used for routers and other tools with universal motors will not work with induction motors. Your best bet for the lathe tools using a regular grinder is frequent dunking of the tool in water.
Thanks for the advice. I'm going to buy that Porter Cable and be happy.
Mike
Stay away from dimmer switches. Motor variometers are much better choice. I don't know that your motor can handle variable speed.
If you bought a 3450 grinder too bad. Way too fast. Even 1725-1750 in my mind is too fast.
If you have a grinder 3450, get a set of pillow blocks, and sheaves and step down the speed. Remount the stone on the new shaft Use a sheave like used on drill presses so you can adjust your speed.
===================================================================== I have a variable speed grinder. I turned it down once just to see what it would be like. Turned it back up and left it there.
I bought one of these:
If you haven't bought yet, consider one of these.
They cut cooler, faster, and with less bounce on the wheel. These wheels are the best for your lathe tools and cost about $25 each for the 6" size, and about $35 for the 8" size. Surfacing them on occasion to keep them clean, mine have lasted for years.
If you buy the 6" grinder, then buy the right wheels, you are at the same price as this grinder. The Woodcraft boys told me they have kept these around specifically for wood turners and because they have a great track record. I believe it; one of mine is 14 years old and still working fine!
Robert
Those were just on sale last month too. I believe 80 some odd ..
I did see this in Woodcraft. That price is a little high. Also, I'd like to have a grinder set up to do other things that need a higher speed (axe, mower blade, &c), and so a variable speed is probably better for me.
Thanks,
Mike
I use a 1725 rpm grinder with a coarse white friable alox wheel. Haven't burned a tool yet. I don't even use a water dip.
Or use a smaller wheel. Halving the diameter has the same effect as halving the speed.
I've been grinding my lathe tools on a high speed grinder for 40 years, no problemo. I am not alone, and I'm not [all that] special. The wheel density/make up has a lot to do with how quickly things heat up. Perhaps a different choice of wheels is in order?
I'm a fan of buying the right tool for the job. Sometimes, there can be modifications that can be done safely, and the results are within parameters. And sometimes performance and safety suffer. Not to mention the user.
$.02
Steve
Density, composition, and binder. Coarse white alox, vitrified bond cuts fast. Vitrified bond means dull grains break off the wheel, making it essentially self-dressing.
If you can do it safely, and it works, that's good. I have just seen a lot of jury rigging, and it ends up costing more than the right tool, and then they have to go buy it, and the money's wasted.
Steve
You can't buy talent, and there are no shortcuts to expertise. Sounds like good lessons for aspiring musicians as well. :)
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.