Shopsmith Forums

ERLover wrote:

jsburger wrote:

ERLover wrote:@John>"I was commenting on JPG's calculation for the low speed with out the speed changer. The high speed with the SC in the low setting is 1600 and that is what I said.".
I figured that, just wanted to get us on the same page since that # is not in MY HEAD. I know it is around there though, I thought a bit lower, but WTFDIK, I run em on the low end, I wish I could go lower then 425rpms sometimes, but not going to pop for Skips DC drive just yet.

You can always get a smaller motor pulley. A 1" should get you down to about 200 RPM's. I don't know if a pulley that small is available for a 5/8" motor shaft. The problem with changing the head stock pulley is that the bore is non standard. However a machinist could make one.

John, what is the small one on the 3 step, 1.5"? Maybe a thing to McMaster and Carr

They dont have it and if they dont have it, it aint out there!!!
http://www.mcmaster.com/#v-belt-pulleys/=13as7hx

ERLover wrote:

jsburger wrote:

ERLover wrote:@John>"I was commenting on JPG's calculation for the low speed with out the speed changer. The high speed with the SC in the low setting is 1600 and that is what I said.".
I figured that, just wanted to get us on the same page since that # is not in MY HEAD. I know it is around there though, I thought a bit lower, but WTFDIK, I run em on the low end, I wish I could go lower then 425rpms sometimes, but not going to pop for Skips DC drive just yet.

You can always get a smaller motor pulley. A 1" should get you down to about 200 RPM's. I don't know if a pulley that small is available for a 5/8" motor shaft. The problem with changing the head stock pulley is that the bore is non standard. However a machinist could make one.

John, what is the small one on the 3 step, 1.5"? Maybe a thing to McMaster and Carr

I believe it is 2". The three step pulley is 2", 3" and 4" if I remember correctly.

John, I am going to email Skip on that suggestion, I would love to be down in that range for Large Diam Fostner bits.

ERLover wrote:

jsburger wrote:

ERLover wrote: You can always get a smaller motor pulley. A 1" should get you down to about 200 RPM's. I don't know if a pulley that small is available for a 5/8" motor shaft. The problem with changing the head stock pulley is that the bore is non standard. However a machinist could make one.

John, what is the small one on the 3 step, 1.5"? Maybe a thing to McMaster and Carr

They dont have it and if they dont have it, it aint out there!!!
http://www.mcmaster.com/#v-belt-pulleys/=13as7hx

Then reverse the head stock pulley. That will require a different belt. With the lower pulley you can lower the motor if it will clear the bench. If you reverse the head stock pulley I don't know what that will get you and I am not going to calculate it tonight. I leave that up to you. If you reverse the head stock pulley you can't use the belt cover/guard.

If I had a digital tach I would try it but I don't.

John, screw the email I just got off the phone with Skip, you and I were thinking in "The Box" Skip is out side the Box!!!! Not enough meat for a 5/8 inside hole and a 1" Diam pulley, that is why they aint there!!!
BUT Skip sez, "we can make up a 5 or 6" pulley for the HS shaft, he is on it for RPMs and belt size, I will get back to him Monday. Life is sweet with ER friends. Ya the other 2 here were a sleep at the wheel!!!!!

Hokay, a more detailed listing of speeds attained with/without a speed changer using a 1750 rpm motor.

No speed changer:

Motor pulley Quill pulley RPM
......2"..........4"..............825
......3"..........3".............1750
......4"..........2".............3500


With Speed changer LO range

...0....425
...1....555
...2....745
...3....960
...4....1225
...5....1600

FWIW high range

...0....1850
...1....2500
...2....3300
...3....4200
...4....5500
...5....6800

I do not know the range for the 0-8(6,7,8) speed changer, but assume the 0-5 range is the same.

Sorry if the minimalist post was confusing.

@ John B,>Then reverse the head stock pulley. That will require a different belt. With the lower pulley you can lower the motor if it will clear the bench. DP Mode If you reverse the head stock pulley I don't know what that will get you and I am not going to calculate it tonight. I leave that up to you. If you reverse the head stock pulley you can't use the belt cover/guard.
1st guard, "we dont use any stinkin guards here", "Badges? We don't need no stinkin' badges!" Blazing Saddles
2nd cant keep an eye on the cutting thing, reference distance to hands.
3rd a guard DOES at times retain a projectile coming back at you, exp, TS. Had one I had to duck from!!!!
DP mode, no bench involved

Not sure just what he said here below but when I first got a 10er, the one I got for my brother the thing I noticed first when I got it up into drill press position is where the pulley sat in relation to where my hair was. I'm not looking forward to loosing my hair but it would be much worse getting it yanked out....... think about it.

So one of the first purchases I did was for the pulley guard. The second machine which I have came with the guard. You can pick them up yet so if you get a 10e/er you should also make sure you have guard, if not invest in one.

Ed

ERLover wrote:@ John B,>Then reverse the head stock pulley. That will require a different belt. With the lower pulley you can lower the motor if it will clear the bench. DP Mode If you reverse the head stock pulley I don't know what that will get you and I am not going to calculate it tonight. I leave that up to you. If you reverse the head stock pulley you can't use the belt cover/guard.
1st guard, "we dont use any stinkin guards here", "Badges? We don't need no stinkin' badges!" Blazing Saddles
2nd cant keep an eye on the cutting thing, reference distance to hands.
3rd a guard DOES at times retain a projectile coming back at you, exp, TS. Had one I had to duck from!!!!
DP mode, no bench involved

reible wrote:Not sure just what he said here below but when I first got a 10er, the one I got for my brother the thing I noticed first when I got it up into drill press position is where the pulley sat in relation to where my hair was. I'm not looking forward to loosing my hair but it would be much worse getting it yanked out....... think about it.

So one of the first purchases I did was for the pulley guard. The second machine which I have came with the guard. You can pick them up yet so if you get a 10e/er you should also make sure you have guard, if not invest in one.

Ed

ERLover wrote:@ John B,>Then reverse the head stock pulley. That will require a different belt. With the lower pulley you can lower the motor if it will clear the bench. DP Mode If you reverse the head stock pulley I don't know what that will get you and I am not going to calculate it tonight. I leave that up to you. If you reverse the head stock pulley you can't use the belt cover/guard.
1st guard, "we dont use any stinkin guards here", "Badges? We don't need no stinkin' badges!" Blazing Saddles
2nd cant keep an eye on the cutting thing, reference distance to hands.
3rd a guard DOES at times retain a projectile coming back at you, exp, TS. Had one I had to duck from!!!!
DP mode, no bench involved

OMG, the chardonnay done took over from the vermouth(assuming there ever was any vermouth).

What in tarnation will reversing either of the pulleys accomplish(speed changer setup irrelevant)?

Come on Robert. Engage head contents prior to typing gibberish.

reible wrote:Not sure just what he said here below but when I first got a 10er, the one I got for my brother the thing I noticed first when I got it up into drill press position is where the pulley sat in relation to where my hair was. I'm not looking forward to loosing my hair but it would be much worse getting it yanked out....... think about it.

So one of the first purchases I did was for the pulley guard. The second machine which I have came with the guard. You can pick them up yet so if you get a 10e/er you should also make sure you have guard, if not invest in one.

Ed

ERLover wrote:@ John B,>Then reverse the head stock pulley. That will require a different belt. With the lower pulley you can lower the motor if it will clear the bench. DP Mode If you reverse the head stock pulley I don't know what that will get you and I am not going to calculate it tonight. I leave that up to you. If you reverse the head stock pulley you can't use the belt cover/guard.
1st guard, "we dont use any stinkin guards here", "Badges? We don't need no stinkin' badges!" Blazing Saddles
2nd cant keep an eye on the cutting thing, reference distance to hands.
3rd a guard DOES at times retain a projectile coming back at you, exp, TS. Had one I had to duck from!!!!
DP mode, no bench involved

I got the upper guards, but if I go to a bigger HS pulley the standard wont fit, But Skip said he has bigger ones. Ya I worked at HD in the lathe department, DP right next door, in the 70s, saw a guy get his hair caught and ripped off his scalp!!!An Indian would make it less painful with a sharp knife!!!!!!!!!!