Bill's PrintNC CNC 3d Printed Proto type and 6061 alloy Machined mist coolant Retraction Device 

@mbaulfinger I have a Bambu Labs X1 Carbon so it does not take too long to print protype parts which lets me get a feel for the size and scale as it turned out When I first fitted the printed parts and tested the operation I found the rocker arm ratio needed to be changed as I was not getting enough movement on the nozzle at that point I also change the shape of the nozzle mount end from square to round all done before I machined any alloy at all I think it's a smart way of doing it cheers Bill

Hi Chris yeh well 3.2 Kw Jianken spindle and good strong home built machine makes it easy to do I have dialed back my step over you should have seen the chips coming of the 8mm cutter with a 4mm step over at 3000 mm/m ha ha but the cutter was smoking ........as no flood coolant........ I think I might go to a 2.2 Kw Jianken ATC spindle next time as it would have more than enough power but be around 5 Kgs lighter thanks for the comment Chris, all the best Bill

Hi Kevin I started with 1610 single nut C7 ball screws on the Y and X but on one of my upgrade when I changed from 20 mm linear rails to 25 mm rails on the X and Y I also changed to 2005 Double nut C5 ball screws Machined not ground sorry I can't find the brand they were just off AliExpress I was happy with the quality and finish they have been getting quite a work out but still very precise I was after 2010 double nut but could only find them in C3 ground which were far to expensive .... with the servos and 2005's the machine can move faster than I can ever machine and can run rapids of up to 6000 mm / m well that's as high as I have tried.... The Z just uses 1605 C5 single nut (with air strut support) and because it is so short I may upgrade it to a 1610 C3 ground one day Ok I hope that helps cheers Bill

Hi...... I am glad you are getting something out of my videos, I am just trying to show people just how much you can do with a home built or hobby CNC machine as I have said before the machining is easy making the videos is the hard bit........... anyway thanks for the encouragement, cheers Bill

@@williamnorris1516 Modern home-built hobby CNCs are far more capable than the 2-1/2 axis milling machines that were state of the art when I started in the industry. While they aren't as large and powerful as the machines that I ended my machining career with, they don't need an 18-inch thick concrete floor with 50,000 psi rating to move across for installation and 36-inch thick isolated concrete pads to rest on, either. I've always enjoyed working with CNC machine tools and it's a joy to see what other hobbyists are doing with their custom builds these days. You've certainly built a top-notch machine.

@@gaiustacitus4242 Thanks coming from a real machinist that means a lot to me..... My machine is still a work in progress but the build is a project which I am enjoying very much you have to have something to do in your retiremen,t to keep you out of trouble ha ha thanks again cheers Bill

Thanks for the support helps drive me on to keep making videos and just happy to share what I'm up to cheers Bill

Hi Fritz thanks for the encouragement just trying to do the best I can with my self built CNC ....and having a lot of fun at the same time cheers Bill

Hi Well I am just trying to get people thinking about the large diversity of things / components that you can make on a home built hobby CNC. If you can draw it you can probably machine it, you are only limited by your imagination. Glad you enjoyed the video cheers Bill

Well the normally recommended linear rail and ball screw grease is White Lithium But I have been using High Temp Wheel Bearing grease for the past 5 months as an experiment to test it's long term performance ........no problems to this point why risk it you may well ask . I always planed to extend my Y axis by another 100 mm replacing the Ball Screws and rails for longer better quality ones after a year or so anyway the H/T wheel bearing grease is much easier to get then white lithium so time will tell cheers Bill

@@williamnorris1516 thanks for replying! I really appreciate it. I’m in the process of assembling a machine at the moment (it’s not a printnc) but I was curious on what to use. Love your machine btw. I hope to build one in the future so I can cut smaller mild steel parts.

@@thedude6650 Happy to help and good luck with the build it's a fantastic project building your own CNC machine and then a lot of fun using it cheers Bill

Hi yes it's some thing you have to be on top of I just blow of the rack before each tool change and there is an air blast from the spindle as it lowers on to the tool holder I have some ideas to address this but it's a sliding tool rack (moves 200mm) and not easy to shield So still thinking on it thanks for the comment cheers Bill

Yes I have seen the fog buster brass nozzle tubes bent to do just that and I agree that would be even better I do also run a second air blast only nozzle but not fitted in this video for clearing chips from deep groves and pockets which I have done a past video on, But that's the problem with having built a machine that make so many large chips so quickly ha ha any way thanks for your comment cheers Bill

Yes well I don't run the machine all that often and mainly during the day when most people are at work so it's some thing I try not to abuse (noise) ideally if someone is mowing the lawn they wont here me making noise ha ha but no plans for an enclosure at this point in time cheers Bill

Noise level from a CNC really isn't as loud as you'd think it would be. Cutting wood was louder than when I was milling aluminum surprisingly. With the garage closed. No-one is going to really hear a thing. Especially if they are inside their house next-door.

Hi well my Z ball screw is quite long what you can't see is that there is a stop internally to prevent the Z axis ball nut from coming off but my soft limits also prevents it from happening