Many newer washing machines use a high speed 3 phase motor. The high speed is used to spin dry the clothes so they do not have to spend as much time in the dryer. The three phase is so the speed can be varied electronically. Maytag Neptune was one of the first in the US.
I have made several tumblers over the years. I have used steel frames, wood frames and reworked originals. One used a 5 gal bucket and its lid. What the friend wanted, I wanted to run a small threaded rod and bolt a cover on. Added some rails in the bucket to help with agitation also. Made a couple drive wheels for around the bucket so lid and rails weren't an issue. Another used a wooden drum 12" dia X12 long. barrel was 3/4" thick pine sealed with an epoxy coating. Octagonal in shape and each end offset 1" in the drive wheel. It rocked and spun really worked well. It was a wood frame and bronze bushing glued into the wood frame. Last was an old dryer for a trap and skeet club. Lined the drum with thin sheet metal and rubber coated it. Used the original motor and change pulley to slow it down. This one was used by members to clean large batches of shotgun hulls. The drum was fixed so just used a 2" flat belt around it for the driven pulley. Theres a lot of ways to build a tumbler or agitating case polisher. I have thought about a rocker type that rolls 1/2-3/4 turn back and forth for even more agitation
what do you all use as the rubber grips to help it grip while rotating?
Ive used rubber hose. Just get it the same size as the rods and press it over with a little rubber cement for lube to help it slide. Ive cut down leather belting for the drum wheels also. or rubber tubing in a groove around the out side of the wheels
Just out of curiosity ...how much do you guys have tied up in the bearings, shafts and assorted hardware? I'm going to guess $20 per each pillow block bearing assembly for something that's not dirt cheap. Say $20-25 for shafts? Something to keep alignment....$20
Looks like the cost saving way of doing it is pretty close to the direct drive motor cost.
I would google "gear/pulley ratios" (small motor pullet to a large pulley on a jack shaft, and again a small pulley on the other end of the jack shaft to a larger pulley on the drum. Some info; http://www.blocklayer.com/pulley-belteng.aspx
Last edited by mdi; 03-04-2017 at 12:23 PM.
My Anchor is holding fast!
Just search for a picture of a Conestoga wagon; those and all other horse drawn wagons used a greased oak bearing for the wheels. That would last the 1500 mile trip to California with no problems.
Lots more of a load in the wagon than 10 pounds of pins and brass....
Using a ball bearing for that is massive overkill. Save your money.
To the poster about high speed washing machines; maybe in a commercial laundry, like a big hotel, motel, or uniform cleaning, will they have 3 phase motors. You have to be in a non-residential area to have access to 3 phase power, so the Neptune was not a 3 phase motor for use in your home.
I called up the local electric company about 3 phase for my Bridgeport; no way would they install a new transformer for that.
The new machines do spin faster, but the quick and easy way to do that is with gearing in the transmission.
Last edited by No Blue; 03-03-2017 at 02:26 PM.
You guys can use all the wood you want. Me, I will because of my background continue to build things correctly and over kill. If I really wanted to go backward I'd make the whole darn thing out of wood.
The vfd or variable frequency drive does just that it varies the output frequency and voltage to control the speed of the motor. The ac line voltage is converted by the drive to DC pulse width modulation and then converted back to the ac output to feed the motor. Of note is that the motors should be inverter duty rated.
Who is going to be the first one to implement a vfd on their tumbler?
You can indeed get an electronic converter to provide three phase power, but I doubt whether it is worthwhile unless you get a good deal in a three-phase workshop machine. I am sure rotary converters lose the lower running cost of a three-phase supply, and I don't know if electronic ones do.
With a worm gear you could even run it from a home-made windmill. Some people (not me) use tumblers to mill gunpowder, and I can imagine gaining peace of mind from running it far from a power socket, or with the drum floated in water to earth static.
I built a few of these tumblers using 3 phase gear motors and VFD's. If you have a use for ones this big you are not a reloader, rather a manufacturer.
Each drum is good for 15 gallons of brass at a time and you'll need an overhead crane to load and unload them.
There are at least 4 ways around that, that I have and use. VFD's as discussed are pretty cheap, give you the ability to run 230 v 3 ph motors at various speeds, change directions and can run them from 120 v single phase power.I called up the local electric company about 3 phase for my Bridgeport; no way would they install a new transformer for that.
One of these would do it.
A static phase converter is a fancy name for a box of capacitors that allow one to run a 3 ph motor from single phase. This one would do the job.
A rotary phase converter is basically a static phase converter that is running a larger 3 ph motor already and that inertia will give you better start/reverse on your mill than a static alone.
I use all three for different reasons and picked up a backup generator off of CL for just over a $1k with almost no hours on it that will deliver 100 amps at 240v 3 ph, to run the really big stuff.
|BP||Bronze Point||IMR||Improved Military Rifle||PTD||Pointed|
|BR||Bench Rest||M||Magnum||RN||Round Nose|
|BT||Boat Tail||PL||Power-Lokt||SP||Soft Point|
|C||Compressed Charge||PR||Primer||SPCL||Soft Point "Core-Lokt"|
|HP||Hollow Point||PSPCL||Pointed Soft Point "Core Lokt"||C.O.L.||Cartridge Overall Length|
|PSP||Pointed Soft Point||Spz||Spitzer Point||SBT||Spitzer Boat Tail|
|LRN||Lead Round Nose||LWC||Lead Wad Cutter||LSWC||Lead Semi Wad Cutter|