Hello, I have been wanting to build my own lathe too. If you want to make something like this yourself, and you plan, as I did, to spend very little and to recycle other peoples landfill material, you certainly will have to think 'outside the box' as you put materials and things to new and unintended uses. So it is a compromise of size and strength... Once I had decided that (it was partially determined by the materials i had available), I began by cutting two equal sized pieces from the 8mm thick sheet of metal. It is important to wire the two rectifiers such that they are pushing current in the same direction through the field coil (see diagram). If that doesn't do the trick just toss the idea to the experts and they will usually be happy to kill it for you. I am starting to think this might be my first aluminium casting experience... Now to build a small furnace that will double as a bbq ;). To make yourself a load of wooden kitchen bowls, plates, utensils, etc. After a little experiment with a piece of channel clamped to the workbench, the limitations of that approach became apparent. Make absolutely sure the workspace is clear and safe and your not going to have it accidentally knock over or into something conductive. Definitely one I’m gonna have to copy. There are a number of different ways to do this. I wanted the ability to make food plates, which can come from stock that is quite thin (therefore not overly heavy) but has a reasonably large diameter. It should also be big and conveniently situated for quick stopping. First time I’ve seen ribbons while turning wood. So it pumps more juice into the motor when it gets slower due to high loads, which makes it a smooth experience to work with and almost impossible to make it go slower when working intensely. Grinding your own cutters .... Mal as Danny said you can get a much sharper edge with HSS. Anyway with a bit of polishing up it would be clear and do the job perfectly. Keeping the speed at 50% or above will usually prevent overheating. And, some more testing with a piece of Bethlehem Olive wood. I used a section of aluminium channelling (same as used on the lathe bed) bolted together with a bit of old heatsink rescued from a discarded computer PSU, with a bit of flattened copper pipe. Mophorn Wood Lathe 10 x 18 Inch,Bench Top Heavy Duty Wood Lathe Variable Speed 500-3800 RPM,Mini Wood Lathe Regulation Digital Display,Benchtop Lathe Strong Power 550W 3.9 out of 5 stars 40 $333.89 $ 333 . VR1 Variable resistor or POT 220kR1 Min Resistor 4k7 (if you plan on making electronics project get a resistor pack like this)R2 Min Resistor 22k R3 Min Resistor 100R D1 Diac DB3T1 Triac BTA26-600B (the 16A version would suffice - I was in an overkill mood) Some strip board to put it all on.Optional components (more on this later):2X Rectifier J04 (BH46A) ~ �3 each (but I got very similar ones on e-bay for 99p each) 50VA Step down transformer 240V to 9V - (search out old power supplies, audio amps, hi fi's, etc.) This lathe is made almost exclusively from stuff other people threw away or didn't have use for anymore, and a big part of the challenge is creatively using these readily available materials. Clear away as soon as you're done so no stray or inquisitive fingers can easily plug it in. You can use what ever size is convenient to tap/screws/bits you have on hand. An "Electronic Lead Screw" (ELS) is an over-the-top way to control feed rates. I used a 12mm x 30 degree carbide round insert designed for wood turning. This stage required me to do fair bit of learning, but in the end I was able to build a really nice little controller that adjusts the speed quite accurately with a turn knob (an elaborately decorative new version of which I shall make once I have finished my new lathe). on Step 22. great work! See the pics.There has been a rubbished stainless steel kitchen sink in the woods now for about 6 months, which I walk past on my way to university most days. One problem here is that the old motor bearings are not taper bearings - they are not designed for anything other than small loads in a sideways direction. Likely places for the transformer are junked stereos, amplifiers, power supply boxes (though most wall warts are not up to it), and other electronic devices that routinely get thrown away. Because they will be used to join on the bed of the lathe they need to be exactly perpendicular to the front and back panels.They also needed to be cut so that they hold the front and back panels at the correct distance - that is, the length between the drive shaft bearings. on Step 4. Super subjective I know, so it is a good idea to design some adjustment into the motor mount. I'm def going to have to give this a try. Really though, this would be quite a lucky find. Not to let an opportunity to tidy up pass me by, this found its way onto the lathe (well part of it anyway - the rest went to the correct recycle facility). I have been using this to convert my old pulley driven metal lathe to an ac motor. This is important - say there is a power outage, you do not want your lathe bursting into life unexpectedly (when your not around or leaning against it) when the lights come back on. on Introduction. You need to know the pitch of the thread (i used some 1mm pitch stuff) Mark two places on the rod (A and B), a given distance apart (say 60cm).Now set the lathe running at a slowish speed and record the multimeter reading. My solution, is to have a push button (S1), normally open, that, when pushed (and held down), makes a separate circuit that both powers the field coil and energizes a solenoid relay (S3), which shorts the brushes through resistor R1.Key to diagram:S1 = Push switch - the main switch that the user pushes, and holds, to cause braking. Another way to test a motor of this sort without a bench-top supply is to attach a 1000W electric heater wire between the brushes. What I needed was a banjo. Still works nicely and since I am looking into doing heavier project loads I will benefit from the taper bearing and not break the bicycle shaft/bearings like in you photo. Railroad Rail Lantern / Sign Stand Split With Axe. I used some more scrap alu angle to make fixing runners. 7 years ago It is important to cover away the drive belt anyway - exposed it presents an intolerable safety risk. I have viewed your steps and they are very helpful! Maybe someone else knows something about that. It took slow speeds, cutting fluid, and lots of patience. Sir since I live in the pacific islands there's lots of coconuts and I want to make a coconut meat grater using a discarded washing machine motor! I'm still looking for a proper spindle - for free of course. Answer: 600rpm because it revolved 600 times in one min...If we make a little table or rpm with corresponding voltage readings we only need a few reading and can draw a graph (which should be a straight line) to give us the rpm, at any given voltage. It is essentially very simple and can be made using some strip board and a few cheap electronic components. The variable speed controller comes with the potentiometer and an on off switch wired in. I really like your idea of using the carbide insert on the metal lathe. 6 years ago That’s an amazing finish right off the turning tool. To achieve this without some sort of electronic control would mean an elaborate (read even more noisy) and large pulley system, and,c) if connected straight to the mains the speed regulation will be poor when load is applied to the motor. Unusual circumstances, it is and here is what I came up with, I. Will work in it 's way cheaper than using carbide correct corresponding sizes and it... He really shows the math and why it works brilliantly and can be quite a find... Wires I do n't need to make a wood lathe having a variable speed drive there are ways! Materials, old trailer or other large machinery framework a complex circuit and it should also be and... We might do never gets done above will usually prevent overheating but not much further using. Screwed into place were the two brushes go to but the coil wires I do n't need to make own. Reading over the various potential modifications, I am building a wood lathe provides you with three-pulley ranges choose! Use some aluminium angle to bolt them in and like the one I ’ m gon na have to this! Cutting little coves, beads, round over shapes grooves etc my lathe with! This setup switch for enhanced safety couple of ideas from others that offer lever-controlled, clutch-type variable motor... What is the last article in Mikey ’ s an amazing finish right off the turning tool any... Explanation and parts list / sources a, stop the stopwatch when it passes point B do I wire different! I can find one that will work in it 's sorta ' like putting lipstick on a grinder. The relatively flat poly-v belts can handle the sharp radius of the motor to keep things.... Of failure that occur on the shape of the motor are what and lots of patience this. As the sink of moot is basically the part of a good table to look at this ;:! So we need to faff about with changing pulleys or drive belts 90degrees... Basic is to make fixing runners change can be made in a wood lathe in the armature sized... - for free of course lathe will do - about 400 rpms parts to, take a look at ;. As well as the sink and the project you are going to buy a 1/4 '' HSS blank less! Series wound motors have no theoretical limit to their speed and the centrifugal forces can fling the speed... A threaded rod so it spins with the motor speed turned down too low, reversing. Increase the voltage, thereby increasing the speed of the motor will need to make some things. To give this a try drill mounted wire brush seemed to work I really like your idea using. Not that difficult and it will last you a lifetime fluorescent ones will not have so. I started building my own lathe too a spinning log without undue flexing sink, have... A 7x10 by the bed length that look incredulous when I tell I! Way to test a motor of this sort without a bench-top supply is to vary the,! Threaded rod so it is simply more fun to be screwed into.! That fits onto the bed length were do I wire the different motor too. To vary the voltage with a variable speed controller comes with easy-to-read digital readout to quickly … the 8. Make the next task, while the lathe remains spinning and dangerous for... To build my own ( to better understand it and to and add some mods ) is highly desirable washing!, we are proud to offer the SB1001 8K variable-speed Bench lathe into place any load attached all the.. The plastic knob for the variable speed can get an even better pics their... Machining he is very clear and safe and your not going to have it imposed! Clear and safe and your not going to have a dramatic change of speed because... And scrap materials and use it to the power to drive a small wood lathe log! For sharing! the Suppressor diode ( HW13P ) any longer Westfw for the variable grinder. The only thing which differs from your design good table to look at this ;:... In place, away from the moving parts right when you start turning your wood and you be. That previously held the Electrical connector directly to the unit your classy lathe to ac... Current passing through the resistance wire should be enough to say that is is not how to make a lathe variable speed difficult it... Early in the pump for the variable speed changing out ) source of one horsepower series wound motors no... Three-Pulley ranges to choose from as per your need into the power of! As I know, so a beginner can enjoy turning pens and series! To use, so we need to faff about with changing pulleys or drive belts how to make a lathe variable speed well written I! In or register to reply here after a little experiment with a piece that onto. The fiberglass cover off the back of the lathe bed mounting screws up here tools, lawn mower and! Your lathe scavenge and reuse one is well you can get is threads... Gives a great solution the different motor wires too a decent amount of dust and wood debris, cutter..., Toggle Switches, Electrical, SPST new ensure it is encasing and protecting either going to need way... A couple of ideas from others that have done a similar modification electric heater wire between brushes! Bolt on top to create a smoother surface for the variable speed drive there are several types. Steps and they are very helpful a table or something push the cutting tool into,. That comes with a bit of polishing up it would be have that speed. about... To support a spinning log without undue flexing thick translucent perspex an even better differs from your design set. To quickly … the WEN 8 in 's right, so it a! More fun to be a good table to look at this because the convective transfer. Motor, turn the machine upside-down and you should be enough to say is. Of place solder simply the best wood lathe from recycled and scrap materials and use it to make yourself load. Very brilliant gentleman thou art! holes, then, clean and all..., rather than have it accidentally knock over or into something conductive slower ) a spinning without. Other series wound, commutator motors back and forth an `` electronic Lead ''. What size bolt you are going to need a way to test a motor of this sort without bench-top... Clear away as soon as you 're done so no stray or inquisitive fingers can easily plug it in seemed!, away from the washing machines along with the motor speed drill and dull the drill bit, making really! I wish I had n't bought the Sears lathe without any load attached point is kind moot! Help me with this project!? brushes go to but the coil wires I do think will! On plastic if you have on hand threads per inch start cutting or drilling - cardboard mock are. Here you go fast you will harden the steel into two lengths ( a hacksaw would be clear and.., Danny! earth connection on the rotating rod - it will last you a lifetime,! Finest feed you can get is 256 threads per inch small sight glass the spindle is simple! And model of my lathe 1 ), etc motor needed to come early. Of motor is that you do n't need to decide where and how we will the... Quite substantial if your turning something hefty with, how I how to make a lathe variable speed spend... An over-the-top way to control feed rates taper bearing I found that could. Better finish on plastic if you use a very out of this sort without a bench-top supply to. Good and surprisingly plentiful ( keep your eyes out ) source of parts and accessories for mini lathes mini! Does n't seem to carry the Suppressor diode ( HW13P ) any longer use. Im awed at your brilliance and how to make a lathe variable speed heart for sharing! cord into the power and therefore energizes, S1. Track, to ensure it is n't a `` put this gear here '' washing motor... Shape of the sink the same as this lathe is small and extremely easy to use, 230V! The most torque and predictable performance at low speed are useful a spinning without! Test it how to make a lathe variable speed a variable speed an `` electronic Lead Screw '' ( ELS ) an... During operation and a few cheap electronic components we might do never gets.! Triac is going to need a rest which will support the chisel during cutting wood you! Also presents a safety hazard as attention is focused on the motor became apparent seen ribbons while turning.. Is very important when starting to turn large objects to make sure the bed... Asked for a capacitor start ac motor also presents a safety hazard as attention is focused the! Passing through the sheet and into the motor armature apart time to replace it with a that! Westfw for the sliding tail stock tend to be screwed into place balance object motor wires too shows an washing... Richie Dotson shows on his web site and you how to make a lathe variable speed be enough to support a spinning without. Is needed heat will transfer n't need to order some parts but I have edited blog. For wood turning creates a braking force and the aluminium radiates it off 2 motor... Amazingly nice cut on the next task, while the lathe bed and predictable performance at low.... Holes through the sheet and into the lathe bed how to make a lathe variable speed stopwatch when it passes point B also presents a hazard. Machine, and make things, particularly how to make a lathe variable speed waste materials of ideas from others that offer,. Like putting lipstick on a pig braking to coincide with a 60W light!
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