Rhodes Shaper!!!!
- Thread starter lazylathe
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Help Support Home Model Engine Machinist Forum:
On a serious note
Andrew, A shaper is a wonderfully beautiful TERRIBLE thing.....I owned a 7" AAMCO for a quite a while and only sold it because the Aciera fell into my lap.
The are very hypnotizing...their quiet, and seemingly slow....and that's where they can get ya!
DO NOT reach into the cut zone for any reason.....they will get ya!....and they have the ommff to back it up in spades!
Great machine, just don't get lulled into complacency and get bit!....shut it off!
Dave
Andrew, A shaper is a wonderfully beautiful TERRIBLE thing.....I owned a 7" AAMCO for a quite a while and only sold it because the Aciera fell into my lap.
The are very hypnotizing...their quiet, and seemingly slow....and that's where they can get ya!
DO NOT reach into the cut zone for any reason.....they will get ya!....and they have the ommff to back it up in spades!
Great machine, just don't get lulled into complacency and get bit!....shut it off!
Dave
lazylathe
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No worries there Dave!!! ;D
I have learnt my lessons and been bit by a few machines...
Nothing serious luckily but bad enough to wake me up and respect them!
On another note yet again....
All the literature i can find on them say to use a 1/2 horse motor.
The one on it at the moment is a 1 horse.
Even on the slowest setting it runs pretty fast.
Would a lower HP motor fix that?
Or is there a way to reduce the speed in another way??
Andrew
PS - you may need a big bag of chocolate chips!!! :big:
I have learnt my lessons and been bit by a few machines...
Nothing serious luckily but bad enough to wake me up and respect them!
On another note yet again....
All the literature i can find on them say to use a 1/2 horse motor.
The one on it at the moment is a 1 horse.
Even on the slowest setting it runs pretty fast.
Would a lower HP motor fix that?
Or is there a way to reduce the speed in another way??
Andrew
PS - you may need a big bag of chocolate chips!!! :big:
Oh man!!!!!!
To reduce speed, you will need to put a large belt reduction in or a slower motor..... a lower HP unit won't solve that.
That would be any one or all of the following
Slower motor
smaller motor pulley diameter
Larger countershaft pulley diameter ( the pulley driven by the motor)
How fast is the motor?
Dave
To reduce speed, you will need to put a large belt reduction in or a slower motor..... a lower HP unit won't solve that.
That would be any one or all of the following
Slower motor
smaller motor pulley diameter
Larger countershaft pulley diameter ( the pulley driven by the motor)
How fast is the motor?
Dave
Here is my seven inch Atlas and I at play time, makeing jaws for vises, picked up 6 of them in a few months, most people will give them away when the jaws is broken, fun to tinker, Lathe Nut
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<iframe width="420" height="315" src="http://www.youtube.com/embed/A3gox17t5iE" frameborder="0" allowfullscreen></iframe>
On a induction motor, speed is related to the number of poles and supply frequency minus a certain percentage of magnetic slip. That's why a 4 pole/60Hz motor does 30 revolutions per second thus 1800 rpm's minus the slip%. On a single phase motor you can get some reduction of speed by reducing the voltage but this is dependant on the load. This technique is normally used on fan motors.
On the shaper application the best method is the reduction of the pulley.
On the shaper application the best method is the reduction of the pulley.
Andrew,
Measure the OD of those V belt pulleys with a tape measure and report back if you would.
Just the OD of the pulley....forget the belt for now.
That motor pulley doesn't look THAT small....might be something to gain there....
Is the crank gear driven? of is the crank right from the last flat belt pulley?
Dave
Measure the OD of those V belt pulleys with a tape measure and report back if you would.
Just the OD of the pulley....forget the belt for now.
That motor pulley doesn't look THAT small....might be something to gain there....
Is the crank gear driven? of is the crank right from the last flat belt pulley?
Dave
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Nice score Andrew! Glad to see you are getting it sorted.
If any body in Vancouver is looking, there's one on CL;
http://vancouver.en.craigslist.ca/pml/tls/2947979697.html
If you do the math
13/3.15 = 4.12 or 1750/4.12 = 424 rpm
13 /1.75 = 7.4 ir 1750/7.4 = 236 rpm
Or about 7.4/4.12 = 1.8 x 100% = 180 percent reduction in speed.... with a 1.75" OD pulley....all things being equal.
That should get you into the ball park I think.
That with about a 2/1 on the flat belt ( don't know the size just estimating) will bring the speed down to 118 rpm.
What's the final drive?
Dave
13/3.15 = 4.12 or 1750/4.12 = 424 rpm
13 /1.75 = 7.4 ir 1750/7.4 = 236 rpm
Or about 7.4/4.12 = 1.8 x 100% = 180 percent reduction in speed.... with a 1.75" OD pulley....all things being equal.
That should get you into the ball park I think.
That with about a 2/1 on the flat belt ( don't know the size just estimating) will bring the speed down to 118 rpm.
What's the final drive?
Dave
Nice score as Noitoen said - I just love really old equipment found in such lovely condition.
Reducing the voltage won't help - it may stall - perhaps the original motor was a three or four pole (1200 - 900 rpm - synchronous at 60 Hz) and was replaced at some point in its life with whatever was to hand.
Is there a back gear that has been assembled backwards (don't ask I've done it) - just guessing.
If you didn't like the rain in Cape Town - why on earth did you move to Vancouver ? - I believe a large contingent of SA ex-pats there.
P.S. I believe on a shaper you normally mount the vice 90° from your position so you can't knock the work out - ie handle forward.
Ken
Reducing the voltage won't help - it may stall - perhaps the original motor was a three or four pole (1200 - 900 rpm - synchronous at 60 Hz) and was replaced at some point in its life with whatever was to hand.
Is there a back gear that has been assembled backwards (don't ask I've done it) - just guessing.
If you didn't like the rain in Cape Town - why on earth did you move to Vancouver ? - I believe a large contingent of SA ex-pats there.
P.S. I believe on a shaper you normally mount the vice 90° from your position so you can't knock the work out - ie handle forward.
Ken
lazylathe
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HUH??? ???Maths and me are not friends...
We get by on occasions!
So i need a 1.75" pulley off the motor to get things slower?
What is the 2/1 on the flat belt?
The pulley set at the top look to be identical in size to the ones attached to the shaper.
Ken - I do not live in Vancouver!
Woodstock is in the South Western part of Canada, about an hour from Toronto!
Back to Dave...
see page 1?
Man i must be having another rough day at work....
Thanks for all the help again!!!
Andrew
We get by on occasions!
So i need a 1.75" pulley off the motor to get things slower?
What is the 2/1 on the flat belt?
The pulley set at the top look to be identical in size to the ones attached to the shaper.
Ken - I do not live in Vancouver!
Woodstock is in the South Western part of Canada, about an hour from Toronto!
Back to Dave...
see page 1?
Man i must be having another rough day at work....
Thanks for all the help again!!!
Andrew
Andrew
Page 1 of the this thead.
You have a 3 speed flat belt pulley. It is set 1/1 right now. Put the belt on the small pulley up top and the big pulley down below and it will slow down quite a bit. I assumed you've tried that already.... ???
Dave
Page 1 of the this thead.
You have a 3 speed flat belt pulley. It is set 1/1 right now. Put the belt on the small pulley up top and the big pulley down below and it will slow down quite a bit. I assumed you've tried that already.... ???
Dave
