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Re: I Just Purchased 10E Number 143
Posted: Mon Aug 08, 2022 12:43 am
by JPG
FWIW Completely removing deep pits is not necessary. Penetrol treatment after polishing top surface will help prevent the rust in the pits from thriving. Then JPW(or what ever is then still available) can take over to prevent future rusting.
Re: I Just Purchased 10E Number 143
Posted: Mon Aug 08, 2022 8:08 am
by joelgardner
JPG wrote: ↑Mon Aug 08, 2022 12:43 am
FWIW Completely removing deep pits is not necessary. Penetrol treatment after polishing top surface will help prevent the rust in the pits from thriving. Then JPW(or what ever is then still available) can take over to prevent future rusting.
Good to know, thanks JPG!
Re: I Just Purchased 10E Number 143
Posted: Mon Aug 08, 2022 1:43 pm
by chapmanruss
You could try to get a set of the original Retractable Casters or use a different option. Mike used different casters he found and can be seen on his thread at the link below. Scroll down to his July 19th post which is on that second page the link takes you to.
viewtopic.php?t=29864&start=10
Re: I Just Purchased 10E Number 143
Posted: Fri Aug 12, 2022 8:56 pm
by joelgardner
chapmanruss wrote: ↑Mon Aug 08, 2022 1:43 pm
You could try to get a set of the original Retractable Casters or use a different option. Mike used different casters he found and can be seen on his thread at the link below. Scroll down to his July 19th post which is on that second page the link takes you to.
viewtopic.php?t=29864&start=10
After looking through all the options, i think i am going to design my own caster lift system to work with my 4x6 legs. I have a good design in my head, we will see how it works in the real world.
Re: I Just Purchased 10E Number 143
Posted: Fri Aug 12, 2022 9:04 pm
by joelgardner
I still need to add casters and tighten the one Allen screw inside the main shaft. But my rebuild is looking and working great.
I've started fiddling around and getting familiar with the set of Wards gauges that came with my SS.
I turned a piece of green maple that came from a tree in my yard, i was very happy with how the ring separated but then i got greedy with a gouge and snapped the spindle as i was finishing the piece up.
- 20220811_102829.jpg (271.73 KiB) Viewed 1741 times
But then i cut a blank from some air dried cherry i have and something magical came out for my eight year old.
- 20220812_000050.jpg (153.53 KiB) Viewed 1741 times
Re: I Just Purchased 10E Number 143
Posted: Sat Aug 13, 2022 4:26 pm
by joelgardner
More minor upgrades today
Quick release handles for the tool rest make adjustments much easier.
- 20220813_152003.jpg (267.43 KiB) Viewed 1713 times
Another one for the belt cover for changing gears.
- 20220813_152013.jpg (184.65 KiB) Viewed 1713 times
And finally an rpm display that i will install at the back of the motor.
- 20220813_152051.jpg (203.15 KiB) Viewed 1713 times
I am.still looking for an autotransformer to fine tune the speed as needed.
Re: I Just Purchased 10E Number 143
Posted: Sat Aug 13, 2022 9:11 pm
by DarrenDD
Hi Joel,
Looks like things are coming along nicely. Can you tell me where you got the RPM display and how exactly it works/hooks up?
Re: I Just Purchased 10E Number 143
Posted: Sat Aug 13, 2022 10:37 pm
by BuckeyeDennis
Joel, an autotransformer won’t change the speed of an AC induction motor, but it may well apply a voltage that will “release the magic smoke”. Which voltage could be either higher or lower than the rated voltage. Induction-motor speed is primarily a function of the AC line frequency, not the voltage.
If you want a variable-speed motor, I’d recommend replacing the single-phase motor with a 3-phase motor, and powering it from a VFD. 3-phase Frame 56 motors are readily available, and are mechanically direct replacements for the original motors. Assuming good-quality components, this is an almost bulletproof solution that is favored in industrial applications. AutomationDirect.com usually has good deals on both motors and VFD’s, as well as decent documentation.
The other option is to retrofit a DC motor. A lot of hobbiests have repurposed treadmill motors and drives successfully, but those are a lot more work to adapt to the machine. The other downside is that treadmill motors have mechanical commutators, and sooner or later the brushes, and eventually even the commutator ring, will wear out.
Re: I Just Purchased 10E Number 143
Posted: Mon Aug 15, 2022 4:54 pm
by joelgardner
DarrenDD wrote: ↑Sat Aug 13, 2022 9:11 pm
Hi Joel,
Looks like things are coming along nicely. Can you tell me where you got the RPM display and how exactly it works/hooks up?
Hi Darren, and thanks.
I got the rpm sensor from Amazon. This one is barebones and a little tricky to hook up, but basically there is a small magnet i am going to glue to the gear on the back of the SS headstock. Then drill a hole in the headstock to mount the sensor right where that magnet will spin past it.
Then the display will need some kind of little mounting box where i can see it, and everytime the magnet passes the sensor it will display how many times per minute it is going by on the gear (rpm)
It will also need a small power adapter.
EEEkit 4 Digital Red/Blue LED Tachometer RPM Speed Meter + Hall Proximity Switch Sensor NPN Led Panels Digital Led Module
https://a.co/d/3eCN4Eq
Re: I Just Purchased 10E Number 143
Posted: Mon Aug 15, 2022 5:03 pm
by joelgardner
BuckeyeDennis wrote: ↑Sat Aug 13, 2022 10:37 pm
Joel, an autotransformer won’t change the speed of an AC induction motor, but it may well apply a voltage that will “release the magic smoke”. Which voltage could be either higher or lower than the rated voltage. Induction-motor speed is primarily a function of the AC line frequency, not the voltage.
If you want a variable-speed motor, I’d recommend replacing the single-phase motor with a 3-phase motor, and powering it from a VFD. 3-phase Frame 56 motors are readily available, and are mechanically direct replacements for the original motors. Assuming good-quality components, this is an almost bulletproof solution that is favored in industrial applications. AutomationDirect.com usually has good deals on both motors and VFD’s, as well as decent documentation.
The other option is to retrofit a DC motor. A lot of hobbiests have repurposed treadmill motors and drives successfully, but those are a lot more work to adapt to the machine. The other downside is that treadmill motors have mechanical commutators, and sooner or later the brushes, and eventually even the commutator ring, will wear out.
Hi Dennis, i did not want to hear this as I have already ordered an autotransformer
Thank you for sparing me the smoke test though, i am.looking at VFDs now and will explore a 3 phase motor in the future.
I do appreciate the info.
