R 8 Spindle regrind

you guys welcome to bar Z my name is Sam and today we're gonna work on the milk and you know it's I've been putting this off for way too long I was actually with Randy Richard and rakin Elia but Tom Lipton's place and we were talking about spindle run out on the mill and stuff and they said you know Ray said oh no I just got to tensile run out and range said oh man I just got for tensile run out and then they both turned to me and said hey Stan how much does yours have and I said bow and a half and they put their jaws install on the floor and I said you know it has no effect on milling right except your milling cutter won't wear evenly and they thought about it a little bit they said in your rings so I would run in my mill spin that way ever since I got it it was smelly a pound and a half or so run out inside the spindle and it's the actual r8 socket it's just an Ori call it set up and you know I thought I should probably do something about it so I've had this in my mind and I've been kicking it around on my mind for a long time and let's go over first the angles required to duplicate this we're not going to be grinding this section back here but we are going to be rewriting this angle now I'll corner Machinery's handbook the angle is 16 degrees 51 minutes which converts to sixteen point eight five oh that is an included angle but then I have this eight point four to five per side off the centerline only one angle only so there's all your math for setting your angles I'm going to erase the board and bring you back and I'll show you what we have to do to the machine angle wise and things like that too to make it work so let's let me bring it back here in a second okay so let's go over the mill set up let's draw the mill first of all just you know front view there's the base table there's your tower and the RAM and then and then the head what we want to do it the head is you want to rotate it 90 degrees sideways and you want your head be sitting like this with your spindle sticking out here and what you what I want you to do is go ahead and extend the spindle all away you need to indicate here and here to make sure we are 0 0 and get it as close as you possibly can you know work your dial indicator move the table back and forth find the high spot come over we'll be back and forth find the high spot so you need to get it exactly flat next up this this is a guess as we call it the front view this one's going to be what the top view may be this is from the top looking down on your mill you've got the column and the table here and now you've got your your RAM you've got your four bolts on the spider on the RAM and you need to turn it sideways so your head is coming in at an angle like this because remember your spindle is sticking out and we're trying to duplicate that call it right there you're trying to duplicate this angle half of it with the with an indicator and you want to duplicate your your split angle with it not the including just a split and you need to set up three gage blocks in your sign bar come in handy lay it right on the side of the spindle here and indicate off of that keep turning this round this way and this way and it takes a while until you get a 0-0 reading right off of your sign bar right here zero and zero so those are the two settings you have to do to get get lined up on your on your spindle after you've got these two licked the rest of it's pretty easy let's go over the mill and actually look at the setup with it all in place and it took took me several hours just to get it set up but what when you think about the alternative of taking your spindle out and sending it into a spindle shop to be reground you know probably bearings and everything else ball a towel for hours is nothing so let's go over to the mill and see what we have to do to set this up hey guys welcome to bar Z my name's Stan and today we're going to talk about I'm working on the spindle on my machine my collet socket I had about a thousand 1/2 a run-out it's been that way ever since I owned it and I want to fix it but I don't want to send the spindle out that costs a lot of money and I'm gonna show you my setup what I did is I extended my quill I rotated my head 90 degrees I extended the quill and I indicated it so it's dead flat that's step one next up is you rotate the turret back their four bolts on the spider and rotate the turret until you match your angle of an r8 collet that way the axis of the machine is following the taper of the collet toolmakers vise and get this light out of the way toolmakers vise Vblock die grinder stood up in the in my regular vise and now the axe east of my machine I just got set on a real slow feed rate now the access to my machine will grind the spindle right I just got it in back deer and I'm gonna run it route it just run it really slow let me shut all this down and show you my first my first pass just shine a light in there you can probably see the green ink and we disengage the spindle here and now I can spin it around I can see the green ink inside of there and I've got good contact with that call it all I did was call or call it with the sharpie stick it in there and I tightened it down to make sure it was gonna I was gonna match I did it's taken me about two hours or the setup to do this but completely worth it I've been putting it off for too long I've been meaning to give that spend a little bit of attention for quite some time anyways let me get set up I'm gonna get this camera on a tripod and I got one more grind to make I think Sam's just quite not cleaned up so I got some shiny spots out there towards the leading edge I'm just going to get set up for one more final pass and I'll get it turned on and film it for you guys but that's that's a way to true up your spindle right on the machine always turn your head sideways you can get in there and you can see what's going on with the with your you know get the socket your collet socket and the inside your spindle and you can do a really good inspection so but so let's get this on a tripod and get that final cut me I'm gonna back out out of the springs out one of my switches are where they're supposed to be all right so you can see down in there we've got a we've got a good clean all the way out to the end next up we're gonna check it what clean it all out I got rag stuffed up in there so I'm gonna get it all cleaned out and see how deep our our call it sits if it sits too deep we might have to take a little bit off of this face but for all intents and purposes this thing is done we stick the head in neutral here take a good look at that so that's uh that's a pretty good clean I'm pretty happy with that except for you know your little radius out here but you know it didn't affect anything all right let me get this cleaned out and we'll actually check it for run out I had measured it here on the high side I was two point four thousands and right here I was zero where that line is I got a marked out here on the spindle so I was zero here and you know almost two and a half thousands of socket run out this machine's always been bad I don't know why it's been that way since the day I owned it but I thought it was high time I I fixed it so let's get all this malarkey out of the way and put a put a call it in there and see what it looks like okay I think I got my lighting good it's blowing out the gauge but you can see the grind inside and you can see the where it was the shiny spot where the chamfer is and everything and where the grind dropped off and I'm probably need to do you know move the light out of the way that way you can in you can see the indicator I got the spindle in neutral and there's your uh now you can see the gauge moving about a tenth so my spindle is true so any errors that I'm getting are gonna come from kaulitz so let's go throw some collets in there and see how bad my Kaulitz really are between the spindle be in bad my call it's being you know Asian imports they uh it wasn't great but I'm completely satisfied with that right there and yes my gauge is hooked up saying right there no it's not broken there's your tick right there all right let's go check some Kaulitz yeah in here we are over the three-eighths call it installed and it's it's sitting in a little deeper than flush than it used to but I don't think it's really gonna bother me and I got the spindle in neutral again everything's tight you know we're just indicating off of a old dead end no so I'm seeing six six tenths there we run out and like I say even the even the best call ups are good for two or three a cheap asian one I'm happy with tad if that's that's an Asian one so that's about where they sit so there's your total error right there six tenths and that's to the tool which is a darn sight better than what we start off with a couple thousand so uh there's things that are close we can put my mill back together finally this whole project took about four hours break down the mill turn the head sideways indicated in swing the swing the turret indicate that in make sure all axes are locked had to figure out how to do a get a die grinder in a device with a V block so I did that there make sure the die grinder is on Center there was there was a lot to do so that's the setup and that's the the the cut only took what a minute or two but getting this getting the setup done took a while so that's the setup if you've got a spindle that's out it can be pretty easily fixed with just some pretty common tools around the shop okay so there you have it I'm pretty pleased with the results of doing a regrind just on the that ah right socket you know inside the spindle my machine didn't have to take the head off didn't have to pull the spindle out it took me about four hours to do it why did I do it finally you know I've been milling with all that run out forever I've got some little tiny drilling coming up and I want to get you need to be dead-on with those little tiny drills that much run out to really caused havoc on a little tiny drill so that's how I trued up my spindle check yours just for the heck of it check it call it in check it call it out and identify your error whether the errors in the the collet socket or it's in the collet itself but your results may vary I'm gonna warn you you guys only get one chance at this be very very careful with your setup alright thanks for watching everyone hope you enjoyed you

Channel: Shadon HKW

Views: 34,569

Rating: 4.9503546 out of 5

Keywords: Spindle grind, R-8 spindle regrind, mill spindle runout

Id: CFAkb93_V3M

Length: 17min 12sec (1032 seconds)

Published: Tue Feb 02 2016