Machining new ball nut plates for my PrintNC CNC to (Hopefully) fix some stuff

right uh just a quick one I wanted to say thanks to all the people subscribing interacting commenting um I didn't really plan on making any videos just yet I was only going to throw some clips up to Showcase you know the capabilities of the print andc uh when I was building mine I found it really useful seeing the videos either on YouTube or Discord uh just to get an idea of the capabilities really um I've had way more views and comments and whatnot than I thought so I thought going forward I'll try to give a bit more information uh feeds and speeds um answer general questions on the machine um I will give a walk around of a machine at some point but in the meantime if You' got any questions um either drop them in the comments or I highly recommend if you're interested in building one of these uh join the Discord it's really active everyone's great um there's all the information you could possibly need on there but at the moment I've had a couple of I wouldn't say issues with machine um when I'm surfacing the tool marks can get a little bit skew with at times times it's more an aesthetic thing they don't really affect the part at all you can't feel them it's just one of those things it annoys me so I'm going to try to dial it out um the first thing I've noticed I'm not sure if it was a parameter I set wrong when I first built the machine but the plate for the um X bunut when I slacken it off it wants to sit as far as it can to the front now inside here there's a lip um and it's hard up against the roller so what I'm going to do for now is make a new set of plates um with with all the clearance they need in there shouldn't affect anything um I'd rather do it this way for now rather than trying to pull the roller forward and mess up my tram cuz I cannot be bothered [Music] um basically on the extremes of travel you can hear it change pitch as it gets up here and it's you know trying to pull pull over as much as it can um so I think that is probably the best part of call for now so what I'm going to do is jump into fusion and do probably a speed run of Designing some new ones uh just off the old sort of part geometry um do a quick rundown on that load up some stock I've got some 10 mil plates somewhere an off cut probably from when I done the last ones so we'll get that on there get them cut and see if it helps that's we that set up let's start off with a face in operation that is the B now I usually run that somewhere around 18,000 and 1,000 millimet a minute and that works pretty well let's go for a step over of six climb and that's back done now the Adaptive to rough everything out that is going to be the qu in single flute now I'll run that at 20,000 RPM and about 2500 mm a minute now on the boundary you want to go to selection and that rectangle you'll see what that does in a minute now we'll keep this fed conservative cuz it's just taped down so 2 and 1/2 mil optimal load and 2 and 1/2 mil step down and do a stop to leave of 0.3 and then give that 0.1 axal not but it matters but I don't want to break through to the bottom moving on now you should see that rectangles done so that's good to me yep right so that's that all roughed out what I'll do next I'm not going to do anything fancy like a free flute wall finish or anything so just going to Contour with the single flute there on there and then there and there just check now on the bottom there you can see that inside so that would be a disaster that's where we want it now I left .3 so if I do a 0.1 step over do three of those with a final of let's say 06 I over math doesn't add up but but it'll basically take the 0.06 that will be the last one whatever's left it will divide down into rows with that being the maximum so moving on yeah that's good now I want to do a bore operation on all these now V will be done with the 8inch DLC cutting feed rate I'll probably knock that down to 800 cuz we thingss are fragile as hell quite like running those as fast as possible geometry same diameter like that now bottom whole bottom now 2° angle not too aggressive now dimensions on me don't matter as long as the bults go through so I'm not going to do any repeat passes or anything fancy that's that now a shampa this will be with 6 mil shamp for bit no not going for any sort of fancy finish so I'll probably knock that up a bit 20,000 that's usually where I run it right so we want that and that and these two now 0.4 1 mil tip offset so it's not cutting up the very tip you can go more but I found that's fine smoing on okay right so that is everything done we've got the face in the Adaptive got that Contour just to clean the sides up a little bit the B and the shampa so I'll postprocess that set the machine up get ready to go now here is the stock I can't remember what this was from but it was probably about six or seven months ago now what I find interesting is there's no oxidation at all this is something I think me and Brian were talking about on the Discord the other day now this is 6082 which by the specs is a lot more corrosion resistant than 6061 now as you can see something that was faced six or seven months ago and it's just been battered about the workshop that is still pretty damn good interesting I might try digging out a bit of 6061 facing it and leaving it about for a few months anyway for [Music] I oh [Music] a [Music] [Music] d d [Music] [Music] [Music] oh for [Music] [Music] [Music] oh [Music] a for pretty pleased with how they come out didn't really do a fancy wool finish with free flute and just done the single flute not aiming for fancy but everything seems to be on Dimension hopefully I'll throw those on now see if it fixes anything so take aways from this I mean generally speaking from 99% of the angles you view this from it's just a mirror um there's still some artifacts let's see up here this one I've never been able to get rid of it's at the same point on the Travel um for these new plates I'd see that in a lot more areas um I think this one here is due to the rails not being aligned properly um I'm going to need to go through and do that again but for now I mean let's get a closeup I mean it's it's splitting hairs at this point um I'm not sure how much better I can really expect I mean that is pretty damn good I've had it better before but I make one change and it throws it out somewhere else I think the next Port of Call is going to be aligning the X brows hopefully that will see a good bit of change but I mean it's a lot better than it was see how close we can get see it looks wavy on camera but you can't feel any of that it's dead smooth and it's only certain angles you can really pick up on it to the eye that is pretty much just a mirror to me so I'll call that good for now I mean trying to get it in different lights difficult it's so shiny it's trying to focus in all different areas but I don't think I can really ask for much more for now so we'll leave it there and when I come to realign and everything I'll probably make a video on that might help some people um but for now again thanks for all the all the subs all the interaction I'm going to go away and see if I can tweak this some more

Channel: Beaned

Views: 5,492

Keywords: CNC, Machining, Milling, PrintNC, DIY

Id: G4A3XPw7Q3Q

Length: 22min 22sec (1342 seconds)

Published: Sun Apr 07 2024