Emco Super 11 - Tailstock, Guarding and Solid tool post

[Music] hey welcome back today we talk about the tailstock of my I'm super eleventh leaf since I got the Machine I barely used this tail stock there is something going on with it it hand cranks worse it almost like the bearing in here is either tightened up these or there is hard grease in it I suspect the last so it will take it apart after take it apart anyway to clean it up take out the quill clean up everything and we will put it back on the machine and we will set it on center and I will show you a very good way how to do that so let's get this thing apart we start by we start by unscrewing the the hand crank back here which has a 13 millimeter lock nut a nylon lock nut on it and then should all come apart there we go oh yeah there is there is this old grease in it that smells like a million years old they're suspending a single axle bearing and more ancient Greece not to be confused with ancient Greek does the plate that goes below the leaf Bevin plans to tell stop to the path very substantial casting here we have basically most most of the tell stuff now there's a single bushing left that we also will remove as far as I can tell that drawings it goes this way hmm Oh huh the casting in here is hollow this is hollow I was thinking that this is a massive second looking just path down into casting but we'll probably honey heck it's probably not meant to be disassembled look let's take this foot off least use narrow to to set screws on each side those are used to push the tailstock on its base side to side for adjusting the taper or non taper that's all the time you don't want to cut a tape that goes yeah and this is a matte tight fit this the slop and this key that's machinima casting that's a super tight fit which is good that means that the the bushing that felt down into a casting now we have basically everything out except for a lock the quill lock that's true two-part spit collar here pulled together by by this hex screw and there is also a small key in here that intersects with the slop and the quill protects it from rotating going to look at the quilt it has the spiral band going around it this comes from centerless grinding that's basically this the distance between those two spirals that's the feed this part goes through a central s grinder the wheel was probably 15 to 16 millimeter wide and a feed which just went through was a little bit less and one wheel width per revolution that's pretty fast if you have to produce a lot of parts centerless grinding is probably a good process if you have ever seen videos on centerless grinding through few centerless grinding it's fast they can bark off some material so yeah that's that's tailstock let's clean these parts with with some wd-40 and possibly ultrasonic cleaner I have to pull this bearing gear off completely wash it out Oh doesn't need to be pull up yeah this bearing is it's probably in perfect shape but it's sticky what I found works very well to clean up paint at castings our nylon brushes for a rotary tool for dremel or a die grinder and a little bit of wd-40 that combination will get rid of any of those dried up oil and coolant and grease remainings and the years and years of patina on all of castings and and the brush will take care of that in seconds as you can see this is a wd-40 that I used to wash out all the parts smaller parts just with an acid brush and there's a lot of dirt on it that's probably 30 years off just machine sitting around and used from time to time yeah let's look at the tailstock get the tailstock back on the machine moving on the bed blocking and now it's it's moving perfectly I pulled out all the guts you saw me doing that I cleaned them all and wd-40 brushed everything off removed one or two burrs and the bearing that is one axle bearing in there I flush that out with wd-40 cleaned it we greased it put everything back together with lubrication and knots moving very nicely the the quill in the housing is a very tight fit so very happy how this move oh yeah cool lock still works I'm a little bit of backlash here but that's either in the straps or a little bit and this bearing arrangement here that's fine I'm not boring 2 micron precision with the tailstock I do not intend to add a linear scale or something like that on the the test stock the cost for crystal making of a precision depth I can use the comp the not the compound the carriage wouldn't solve two pumps as you can see I already replaced the compound with a massive chunk of cast iron that's holding the tree pond quick change into a post solidly in place bolt it down here and it's catched back here by a plate that's fouled on to it with a v-notch that's doesn't move at all will probably tear off the screws before this moves and this has again the iPoker for the for the indicator arm which is also an idea by Robin Arryn SETI or that's where I got the idea from this allows the indicators stand to go on there without having to place a magnetic base number on the machine and usually the place where put your magnetic stand on a machine that's always buggered up by the magnet and chips and it just gets ugly over time so this is probably way more rigid and also yeah doesn't damage your relief this post is just a piece of linear shaft encase our linear shafting drilled and threaded on the inside grant to flats for a wrench on that I'm still waiting for the sheet metal cover for de for a cross slide but this should not you come in in the next days now we have to align the tailstock to give you a quick rundown we're going to measure the quill of the tailstock precisely take a note on this dimension then we take a piece of random stock in the spindle of the leaf turn it to exactly the same diameter as the quill I'm going to move the quill up and then we'll just use an indicator to measure the height difference and decide to side difference between the piece of stock in the spindle and the quill of the tailstock so yeah it's that easy and we can adjust accordingly side to side either just mean of course should be right off Factory checked up a piece of aluminum and I measured the quill of this lathe which is 29.99 millimeters in diameter basically 10 microns under 30 millimeters and I turned a piece of stock to the same diameter basically you could even if you're not if you miss the diameter slightly it doesn't matter anyway you can compensate when you measure these two Heights you just have to keep in mind that to that you have to incorporate the smaller diameter when you measure from this height to this height just make a sketch if if you're not sure what's going on and right away just by feeling here I can can tell that I have to move the tailstock a good amount my direction that means I have to loosen the set screw on the back of the tail stock and I have to use the front set screw to pull the pull the tailstock towards me just just get get it about right now we can bring an indicator in and check the actual step here you can see the stylus of the dial testing cater down here and you see the dial here I'm going to bring this in contact and I will preload the dial to to an even number kidding take notice that we're still here on the aluminum which had turned in the spindle and it's on Center height it's the same diameter as the quill now we move to indicator over by traversing the carriage of the leaf over to the quill of the tailstock and we see that we are twelve microns back we use our set screw and on the test dock and we adjust just like this and we'd go back back at 40 and we go back to the test talking to our 40 and it's dropping a little bit to the back which means that to carry that the quill of the tailstock is coming towards us which is correct because under load when you do turning between centers the cutting pressure will put a little bit of load on the quill in this direction and will bend the tailstock the mounting of the tail stuff to quill every sing a little bit back and this is pretty darn good right now zero zero that's looking pretty good okay I want to show you quickly some details on the mounting of the x-axis linear scale on the EMCO there's linear scale this is a 1 micron reading Chinese linear scale has proven to be very accurate here's the read head it writes behind the cross light and it has his welded and machined bracket here that couples it to the cross slide the linear scale here is mounted to a piece of angle iron that's machined Square and flat on the in and out side and bolts to the carriage here with two m6 screws that bolts and the precision bar normally the traveling steady rest goes but stefaned now you can't use a traveling steady on this lathe yeah that's right I never owned one and during the last 15 years of doing this as a hobby and as a paid job I never never ever have the need to use a traveling steady even a stationary steady that sits on the bed is very rare for me that's just not the work I do so this mounts here the linear scales mount to it it's very rigid mount to protect it from this side with a wall thickness of about three millimeters here is the cross slide please this now the shipment moves along that's to cover up the slot or the lead screws very nice touch if you do not have a full cover of the ways here in my case it's almost unnecessary but still I leave it in place gifts additional protect if something goes under D the shipment of cover that I will show you in a second I have two strips off cold-rolled ten by six millimeter stock flat stock screwed to the side of the cross slide and draw then tapped M's free from the top then I have this piece here this is laser cut and CNC press rate I word up this this goes over everything covers up everything very nicely I will have a strip of about 50 millimeter width of leather hanging over the side on both sides to give a dismal cover and this screws just down with 5m3 Torx flathead screws on each side I added two oil ports in the t-slot which is probably very off place to place them but they are out of the way I do not hit them with anything they are protected it's the it's the normal circuiting style so they do not collect much dirt you can just wipe them off and then oil gun to to lube up the waste and Milt always into the crossed light now that's something where Remco for some reason is lacking probably building a machine with a beard headstock hard neck ground gears hartmann grounds been harmed and grant fed at some point there wasn't just any money left in the BG to add even more features they probably skimped for that reason but that's a minor issue that I can live with my my lock for the bet for that for the carriage still works and then the solid tool post drops in place on top of the teeth lots have to find you ideal position like this or more this direction depends it depends on the tooling it's probably more sitting here but the nice thing is it's all built and designed in a way so I can still take my compound drop it back here and I can still work on parts now maybe maybe eighty millimeters in diameter and I can use the compound back here if I need to cut the taper or stuff like that and I have to advantage off the solid tool post to be obviously very solid so or I can have a second tool back here and it's a lot of options now I'm I'm really happy how this comes out and anody I don't have a build with young to salt to pass this just a chunk of yeah cast-iron gray cast iron bandsaw to shape scraped flat on bottom and all the surfaces are just finished on a belt sander then rounded over as top surface needs surface grinding still but apart from that that's done after I did those titanium screws I spent a few days fooling around with lathe amount of the sheet metal guard here I finally mounted solid to a post here that the bed cover Mamta my Kaulitz up there a small shelf 40 collar drip reducer sleeve and stuff like that just creature comforts but yeah enough farting around I need to leave now again for actual work so I will leave it at I will leave the Machine not in this condition like it is I'm relatively happy so far the way cover of the cross slide and slide came out great it's a very good a good peace of mind and you know that you can use for example this abrasive rubber stick here apart and you do not have to fear that you get any abrasive grit down into the way sort of the bad stuff like that I will freely print some elastic filler pieces for the t-slots for now I have some PE foe fold it up put in and cut flush with a razor blade but from that yeah it's it's operational now very reparation Allah as much as I want it to be all my Chuck's that I need set up good to go so hope you enjoyed this quick update on this machine thank you all for watching and see you next time [Music]

Channel: Stefan Gotteswinter

Views: 44,016

Rating: 4.9771309 out of 5

Keywords: tailstock, emco, super 11, maximat, reitstock, drehbank, lathe, guarding, solid tool post

Id: bLn0Ch1_KQM

Length: 22min 1sec (1321 seconds)

Published: Sun May 12 2019