I tightened the gib a little since i noticed the slide would actually back away a few thousandths from a cut. Bestequip mini metal lathe 550w 7 x 14 inch metal lathe 0. As promised, herewith are my experiences thus far machining a replacement crossslide casting from andy lofquist at metal lathe accessories to fit my loganwards 11 lathe. The compound cross slide can be moved in and out with your hands about 18 or 3mm or so. The premier source of parts and accessories for mini. Lathe machine gl6241 410 x mm brand new swing over bed. Metric threads on a south bend 9c lathe without buying a transposing gear. This didnt work as well as i hoped so i split the old nut lengthwise instead but it cracked when squeezed so i. But its pretty worn so the cross slide backlash is about 0. As this is, for the foreseeable future, the only machine i have space for, it is imperative that it be as flexible as possible. Now you can access the two 6mm hex head bolts that hold lock the cross slide at a specific angle. C3 minilathe dismantling and reassembly guide arc euro trade.
There is a ridiculous amount of chatter when cutting, not all the time. Your new shop fox 6 x 10 minilathe has been specially designed to provide many years of trou. By selling directly to end users we provide the best quality products at the best price to professionals and hobbyists. Engage quadrant and adjust backlash between gears a and b. I need to fix the backlash on the cross and topslide on the lathe the 85y old one it currently has 8tpi acme or something like that, square topped threaded screws working onto a tapped castiron block which is the slide itself. I personally would be more concerned with gib adjustments on a lathe rather than backlash.
The best part of the purchase was the grizzly team. Now turn the crossslide handle until the crossslide disengages from the leadscrew, then slide it. This durable cross slide vise is ideal for use in the home garage or professional shop. Minilathe cross slide extension and thrust bearing mod. All of micromark s standard and miniature power tool accessories undergo the highest level of quality testing to guarantee longterm. Like most adjustments on the minilathe, you need to play around with it a while to get a feel for it. Just by the comments you can see how ignorant many are on how to adjust a mini lathe. The g8688 7 x 12 mini metal lathe was a good purchase for me. Mini metal lathe machine 550w 7 x 14 variable speed 2250 rpm metalworking. The difference in backlash is the wear on the screw with the remainder being wear on the nut. Andrew, i have a cj18 mini lathe which is almost identical to your warco super mini. Swing over bedways 26 swing over wings of saddle 24. Cut, smooth, engrave and buff to perfection with a mini lathe or microlux accessories. A gingery lathe made based on the book the metal lathe by david gingery.
The sieg c3 mini lathe is currently one of the most popular small. As i described in another thread, i want to replace the rather short crossslide that came with the lathe originally. You should be able to get to at least 20 thou or 0. Hi all, this is one for the experts, johns, robin, etc. Introduction and question about lathe backlash problem. During the cnc conversion of frankensieg, it became increasingly obvious that tslots in the cross slide would greatly increase the flexiblity of this machine. Be careful not to overtighten the screws or you could strip the threads. Heavy duty cross slide for lathe includes a 4 way tool post dual graduations on dial. I copied varmint als idea for a tailstock flag and meter. Used a piece of 12 lucite for the flag, the magnet is the rotor from a vcr takeup motor with an aluminum bracket to mount the meter. New listing headstock spindle assembly 10d2a from vintage 10 atlas metal lathe model qc 42.
Im new to metal working and have already broken a couple cutting tools and blown a fuse, but the machine was straight forward to setup and learn so im routinely producing parts with about 1 to 2 mil accuracy and expect to improve. Removing backlash in crossslide handle the home machinist. In addition, the cross slide was notchy on my lathe so i wanted to add a ball bearing as part of the cross slide mod. This video will show you how to fix backlash on lathe crossfeed y axis adjusting backlash on a smithy machine. So far ive adjsuted the gib on the compound and on the cross slide, and it behaves better. A cast iron pillow block was made on the lathe, bored on both ends for the bearings.
I do not use woodturning tools and i do not have the type of tool rest used on a wood lathe. Heavy duty cross slide for watchmakers lathe blogger. Cross slide feed handle the cross slide feed handle moves the cross slide across the ways. The dial on this handle indicates the relative position of the cross slide. Multifunctionworktable milling working cross table milling. If you have read my criticisms of the vertical milling slide vms sold for the wm180 and 7x12 and 7x14 minilathes, you will have seen that the cross slide wont travel far enough in to get the vms past the centreline of the lathe before the feedscrew nut detaches from the feedscrew. Machining a replacement cross slide for a logan 11 as.
New listing atlascraftsman 6 metal lathe amrature undercutter attachment,2 new blades. The taig milling attachment makes a good small milling attachment for the mini lathe. The brass nut seemed to wear rapidly following adjustment making backlash adjustment an exercise in futility. Micromark s power tool accessories include chucks and collets, burrs and cutters, buffers and miniature saw blades. Ive been turying to turn down a part in aluminium today and have found a somewhat serious issue with my c3 lathe.
As most visitors probably know, the mother lode of minilathe info is found at frank hooses site. The leadscrew end was machined to 12mm to fit into the bored end of the leadscrew extension made. Above is a pic of the lathe and mill the mill table weighs more than the lathe and mill head combined. The cross slide travel on my minilathe needed to be increased to accommodate the phase ii toolpost since the size of this toolpost constrains the diameter which may be turned.
The cross slide on my mini lathe had more backlash than desired, typically 4 thousandths. Then traversed the cross slide end result cross slide moves about 0. We guarantee this product to be free from defects in materials and. Backlash is more of an issue with a milling machine than it is with a lathe where all of cutting is only in one direction ie you are feeding the cross slide in to turn the od or you are feeding it out to bore a hole. The position of the tool is controlled by turning the crossslide feed handle 16.
Cross slide 4 copyrighttti cali,209yibztnd the information contained herein is deemed accurate as of 9252017 and represents our most recent product specifications. The thread on the leadscrew extension is for preloading bearings, to remove backlash. Cross slide for wood lathe cue man billiard products. What it is and what to do about it backlash is the slop in any toothed gears or threaded screws drive system. You must make a mounting block that is about 1 tall to mount this mini lathe milling attachment on the cross slide. It came with a range of accessories including the small tslot milling table that attaches to the crossslide, plus a 4jaw chuck, several drill chucks and an assortment of arbors and mills. In other words there is little opportunity to make another part. My lathe is by no means perfect but it is an example of a directory of homemade tools and equipment.
Homemade cross slide dial indicator for a unimat sl lathe. Like most purchasers of the chinese 10x7 minilathe as sold by harbor freight, grizzly and a host of other machinery shops, i was disappointed with the general finish of my machine. A center finder is one way to simplify use of the mini lathe s 4 jaw chuck. You dont need to remove the cross slide to adjust the backlash, but you may want to do so to lubricate the dovetails and leadscrew and to polish the gib strip. So far ive adjsuted the gib on the compound and on the crossslide, and it behaves better.
Capable of being utilizing for both lathe and milling operations. The typical metal lathe cutting operations include. Lms minilathe measuring compound backlash the backlash turned out to be around 20 mil 0. Custom heavy duty cross slide for watchmakers lathe ready to add accessories all of my standard machining is done with the smaller derbyshire cross slide but this heavy duty slide will really open up more possibilities for some new attachments. The graduated dial can be repositioned for convenience. These notes may assist those who want to get a bit more use out of a vms. I have been using a 7x14 metal lathe for the past six years to turn pens with carbide tools mounted on the original tool post. Just from a terminology point of view what you are trying to adjust is the backlash on the cross slide. Cross slide similar to adjusting the cross slide handwheel, make sure the threads are engaging and all backlash has been cleared before you set the handwheel scale to 0, or it will not be accurate.
I made will hamlyns split nut mod to reduce backlash in the cross slide. Use this handle to advance the tool into the work and for facing cuts. Compound bench cross slide drill press vise portable work table vise, xy 2 axis adjustive for mini drilling milling machine. Mophorn 7x14 metal lathe 550w precision bench top mini metal milling lathe variable speed 502500 rpm rpm nylon gear 7 x 14 inch 5. Exactly the same as on crossslide and compound dials. This would reappear within a week or so after adjusting the brass nut for 0. Heres info on what it is, how it is measured, and what the designer of such systems can do to reduce it.
Most annoying was the slop and backlash in the crossslide and the occasional stiffness of the compound slide. Without a crossslide extension the maximum stock diameter that can be machined over the crossslide is smaller than swing over crossslide. In this post i want to show the details to the cross slide dial indicator di support bracket and custom faceplate for unimat sl lathe contains 12 holes threaded. Lathe cross slide metalworking equipment replacement parts. After adjusting the gib on the cross slide, ive noticed some backlash in the handle, maybe. The eastwood 7 x 12 mini lathe is equipped with all the features found on large. The cross slide backlash you describe of 12mm 20 thou is excessive for the minilathe. With a maximum jaw opening of 6, this cross slide vise holds your work pieces steady and tight. I want to replace it with a much longer one with teeslots in the rear so that i can use a rearmounted.
Remove the screw securing the compound slide handle. Remove these two screws and lift the compound slide off of the cross slide. One full turn sounds a lot and i would expect there is adjustment for it. Eastwood strongly recommends the use of a book dedicated to the subject. After adjusting the gib on the crossslide, ive noticed some backlash in the handle, maybe. Now turn the cross slide handle until the cross slide disengages from the leadscrew, then slide it by hand the rest of the way off of the dovetails. Adding cross slide to wood lathe the international. You dont need to remove the crossslide to adjust the backlash, but you may want to do so to lubricate the dovetails and leadscrew and to polish the gib strip. Backlash is the result of a gap between the handle and the worktable on your lathe. Minilathe, cross slide travel increase, ball bearing. Will have to do some more investigations and see if this is something i can possibly fix.
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