How to Install a DRO 6 - Installing the Z Axis Scale
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- čas přidán 31. 03. 2019
- Shars.com approached me about making some videos showing the installation of one of their Sino Digital Readouts (DRO). In this installment I'll be putting the Z axis scale on the machine and discussing some of the quirks of this particular scale installation. I'll be making separate videos showing the installation of the various components so it is easy to reference back to each part. If you have any questions, leave them in the comments below. Thanks for watching!
Great "How To do It", really like your clear understandable American Voice.
Fantastic set of videos, incredibly helpful Thank you
I am planning on installing a DRO on my milling machine and have watched a number of other videos to give me the confidence to go ahead.
Your video is by far the best I have seen.
You will be helping a lot of people with their installations and the effort you have put into this is highly appreciated.
Excellent tutorial and very timely for me! Installing my dro currently. Thanks again
An excellent series. I've watched several other videos over the years and they just didn't seem to explain things properly to fit my ENCO Bridgeport clone. All I need to do now is order a DRO kit. Thanks for the series. Subbed
Nice series. Ive found that a DRO is probabably the best accessory ive ever got for my pm25mv, especially the preprogrammed modes. Thanks.
Very good and organised information ! Thank you for your time and thoroughness !
Thanks so much for this series Stuart. Really informative and concise.
Thanks for sharing, lots of details and will help me greatly when I install mine this weekend. Cheers!
I just picked up this exactly dro from a friend but is missing the brackets now I’m confident Of doing it my self, thanks for you videos, and looking forward for the next one. Subscribe!
A perfect explanation .... thank you
Enjoyed your setup videos. They are very complete which is nice to see. You also speak clearly which is appreciated . Here's my comment. A good machinists wants everything dead nuts. However, in viewing the videos, I would ask whether aligning the scale perfectly with the axis travel is that critical. Let's consider the X axis setup video. We will use 12 in of travel as an example. If the scale was off .010 vertically at one end in 12", the table travel would still be 12". Well, maybe 11.99999. Getting the gross error out is pretty easy. However, that last thousandth or two can be very time consuming. For the average Joe, maybe it's not that critical and plus or minus .005 would be plenty good. Might make the setup go much faster.
Awsome Instruction Thank You.
Hi Stuart, Rick at Shars Tool recommended I watch your video on DRO on a milling machine. I have a 1960 Clausing table mill that is begging foe a DRO system . Watched the entire series in one night and really glad I did. Will be mounting X axis on the front face of the table as not to lose 1” of only 5” of Y axis travel. I wave been worries on how I would mount knee Z axis and like your idea of using the knee side surface . I real think that I can do this after watching your videos. Thank You Bill B
Glad I could help!
Hi folks, there's nothing wrong of course with getting an installation as accurate as possible, but if one does the math an error in alignment of 0.1 inch over one foot results in a misread of under half of one thousandths of an inch. It's essentially a cosine error and for low angle values the cosine of the angle is very, very close to 1.0000. If one gets the scale aligned within say 0.01 inch the resultant cosine error is very tiny indeed. On a milling machine it would not be worth bothering with, let alone worrying about. However on a surface grinder or jig drill I think that I would be aiming for better than one thou scale alignment.
Wow, great, informative vids on DRO installation! By far the best on youtube in my view!
How is this not more viewed already??!! I could not find the linear compensation video promised.. Did I just miss it? Thanks!
No you haven't missed it. I got very busy and haven't shot it yet.
Looking forward to video about linear compensation as my Sino is way out and I can’t make any sense of the manual.
Excellent videos by the way.
I'm working on it. I'm pretty busy right now, but I'll hopefully get it done next week.
@@StuartdeHaro That one should be very interesting! The one item you forgot to mention in needed installation items was - - aspirin! Especially needed after dangling in awkward body positions while trying to mount the scales.
To answer my own question--I just got my DRO installed on my mill , to give some info on mill it's a Pilgrim a Bridgeport clone seems to be a good mill looks the same as a Bridgeport so to answer my question about movement when the X , Y and Z axis are locked on my mill the X moves .00039 and
the Y moves .00000 now we get to the Z axis the Z moves .00019 I really thought it would move more and everyone's mill will most likely move different where the gives are tight or ware in machine.
Great series! Now I'm ready for the hour long video that shows everything it can do and what every button does. :) I'm also curious whether there is any functional difference between the three basic versions of DROs that appear to be available among all the different sellers.
That would be the cats ass! My chinenglish is pretty bad too.
Don't ever throw the shipping brackets away. If you ever have to take the scale off you will need the brackets to align it again.
Yup. I've got them tucked away in my tool box.
Excellent insight into the installation of the scales. I watched the whole series- you did say you will get into the linear compensation and the functionality of the DRO. I don't see these videos. Did you decide not to do them?
Thanks for the meticulous work and the clear explanations of all the topics in your videos.
I'm still planning on doing them. I've just been incredibly busy with work and haven't had the time to devote to it. I'll get it eventually though.
@@StuartdeHaro I look forward to watching them when you get them out. All the best. Salah
Hey Stuart... I'm not the kinda guy to reinvent the wheel, but I've got to mount scales to my series 1 bridgeport just like you did in the video series... Any chance you could share with us the rough dimensions of the bracketry you built for the Z and Y axis? I also curious what thickness of aluminum you used here. I bought the cheap chinese dro off fleabay and I wouldn't use the junk it came with on my wheel barrow. Thanks man!
Sure. I'm away from my shop right now, but remind me next week and I'll get back to you. As far as the thickness, it was made out of stuff I had on hand. It was around 1/2" or 12mm I think. I cleaned up the mounting surfaces to minimize the headaches of installation.
@@StuartdeHaro Do you know you are the only guy on yt with a video on this for the bridgeport? I was screwing with my machine today mapping out where all this crap goes and if you have the oiling system, it presents a few new problems. I was planning on installing the Z on the right side, but had to scrap that idea because the Z and Y scales get in the way of each other. It's easier to rework the oiler that's mounted on the left. With the Y axis, you have no choice but to mount on the right because of the oiler manifold that lives under the saddle on the left. What a GOAT ROPE! Looks like I have ANOTHER stupid scale to shorten.... better than trying to grow one I guess. :-/ To make things even more interesting, the oiler under tha saddle hits the top of the Z. UGHH!
Thanks for the video I have a Bridgeport clone that's the same size as your Bridgeport and I was wondering when you indicate the Z axis you have it within .002 on the bracket and .0005 on the scale now when you lock the table on the z axis how much does it move it has to move when you have about 600 to 700 lbs. or more pulling on the z axis gives.
That's a pretty good question. I didn't check that. If I remember, I'll look when I get home from work.
Did you ever check the movement of the z-axis when locked ?
@@williamdavis4268 Oh no I didn't. It's 2am right now, but I'll set a reminder in my phone to check in the morning. Thanks for keeping me on my toes.
What is accounting for any angle difference between the two castings?
That's out of your control. You just have to assume they got that within acceptable parameters at the factory.
I think people obsess over the parallelism when mounting DRO scales. I've seen this in other DRO videos too. With 6" quill travel, and the scale off parallel by .020"? The error is only .0000333" (Not a criticism of you, just pointing it out. ) If you had 20 inches of travel, the error would be even less - .00001"
I don't know what Clayton might have done but it's apparent that he ruined a great friendship
Ww11
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I see no reason to mount it there,if your a machinist mounting and aligning it to the mull body casting is no issue., and that isant out of the chip aera.chip flys and hits the mill and comes back to the reader/scale...put the guard on!! if you cant figure out how to keep the guard from hitting any thing....you might want to do some rethinking. this is a simple install. you seem to be pretty good but just need to do a little more thinking in advance. possibly something like measure, think measure think some more, figure all issues before you order the scales so you cant get exzactly what size is needed. some people get too short and end up regreting it when they do get something thats needs the extra travel, and some get longer than the machine takes thinking there getting more for their $$ they then have install issues., like putting a x scale on thats too long, works great till you decide to put some drains on and run coolent....then oops the holes are covered....think it ALL through thoroughly and thoughtfuly,as it will be a easer and better install in the end.!!! do it right, do it 1 time, be done and have fun. and do everything possiable to make addtions/accessorys eazy with no interfearance or alterations from the other installs. same go's for everything even the power cross feeds witch may need extra clearance. I made a aluminum spacer plate to space out my x power feed to keep more travel and keep clearance at the dro. remember everything can be better than it is. dont sell your self short~~~or .....your machine. also, if you have a old machine thats been around the block...look for holes from another dro system that may of been on it...you might need to use a magnet to find the filler that is in the holds when it was removed and repainted( "refurbushed") installs are fairly simple, dont get skeered.and make sure the x scale has room when the table is full back agnist the mill...or you will need a new scale. you may need to add some washers to the stops to get clearance. if you dont have way protection yet either order a ready made kit or make it your self, shower liner works great and your local hardware stores have it cheep..again some thinking is required.it does not have to be accordeian.