Aaron is a Melbourne based RU-vidr, engineer, mechanic, maker & high school shop teacher. Content uploaded is based around CAD, CAM, CNC machining, RC helicopters and vintage machinery. Channel was previously known as DCTTeacher1.
Don't know how I missed this video.. Excellent, the CNC'd cam came out with a great finish and fast too. Shortly I've to machine(manual machining) a cam shaft for a inline four cylinder small scale 4 stroke engine! Regards kevin
Hi Kevin. Yes RU-vid have been sticking it to us smaller creators. Many of my subscribers don’t get a notification when I post. Sometimes I wonder if I could even be bothered anymore. Hey your motor sounds good I’ll check out your video progress 👍🍻
They are ok, but you do loose height with longer tools (risk crashing into vice / fixtures etc). Double arm is better, but harder to fix if there is a problem. 👍
G’day Preso. No the grey Fergusons are a little underpowered and a bit light to pull at this weight. Most of these tractors were 50-90 horsepower. Good to hear from you mate cheers 🍻
Cool ! 👍 I just saw a drawing for a test piece for 1st year apprentice machinists from Cock a too island from many years ago . they had to machine a set taper , vee , acme , square and buttress threads all on the same piece of stock . 👍
G'day Max and thanks for checking in. Yes those were days mate. They had similar exercises to complete in the navy training also. Sadly, much of the apprenticeship training has changed today. We tend to get them on machines sooner rather than later and make small projects they get to take home. Cheers, Aaron.
Hey Max 👋🏼👋🏼 That would have been me, in about March/ April 1967 ( along with 20 other hairy-arsed 1st year snots 🤣🤣🤣). And that was after a coupla months on hand tools … great Apprentices school for the fitters & turners ( that’s what we were back then). I was the ‘last’ of the five-year apprenticeships… but I got it commuted to four and 1/2 ( for good behaviour 🤣🤣). Regards Robert
not sure if its of any use to you but to force y moves on our doosan you need to set x minimum in the NC Program post processor settings. needs to be a minus number. depends on part size
Hi David. Thanks for the tip mate. I’ll look into it. I did use the dedicated Autodesk ST20Y post processor. The week earlier it used a Y position to drill those crankshaft holes. Cheers Aaron 👍🍻
@@DCT_Aaron_Engineering for the hole in the crankshaft, did you have your WCS y axis pointing in the same axis as the hole. hope that makes sense. that would use a y move. usually better to have the x axis in line with something like that just because you have more travel in the x axis. depends on part size obviously.
@@davidpearson3146 G’day David. WCS was set up as a standard lathe job. Z axis on centreline of chuck and X axis perpendicular to the chuck face. I just selected the hole centre. TBH I was surprised it worked so easily. It was different to how I’d pick a positioning move when using the 5 axis mill trunnion. Cheers 🍻
Hi Andrew. You can use the tools stationary to drill on the centre line. However, having them as live tools allows you spot, drill and chamfer off the centre line. The lathe has an additional Y axis.
G96 / G50 @ 1:50 WOW, that Spindle 👌 It's sort of funny how Confusion 360, showed the part being Milled with Y Axis. But it ran in C Axis in the Lathe ?? Is this how Confusion shows it in CAM 🤔 I'm onlly asking for a friend 😅 The FR on the Parting Off tool might be a little aggressive. But, it's maybe more so that the part isn't launched than the actual Cutting Speed. I like how you always take so much time to show as much as you can in a video, everything from CAM to running in the machine. I might be a little lazy in this regard about how much time I put into a video. But, you have always made good content on your channel 👍👍
G’day Peter. Always appreciate you stopping by and providing feedback. Yes that 4000RPM spindle clamp I programmed was a bit excessive. Should have left it at 2500rpm. I agree, that 0.2mm/rev part off really launched that part 🚀 lol. Greedy bastard aren’t I. 😂 I’ll give you call soon, got some information I need to tell you. Cheers 🍻 Aaron
G'day Stevo. This worked for a little while, but I eventually bought a proper oil skimmer from Arty over at LiveTools. I've done 2 videos on skimmers I'll attach the links here as it may help you make your decision mate. Cheers, Aaron. Belt Skimmer here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-nGFWTjJuYIc.html Disc Skimmer here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-9YX2b788jFA.html
Nice project Aaron. I really enjoyed watching everything through ConFusion to running on the Mill. You're definitely spoilt with a Probe. ( but reality is, I'm too tight to pay the money to buy 1 for my machine 🤫) On the Mill I run mostly 100% Rapids with a mix of fast feeds. But, on the Lathe I do the same as you and run mostly 25% Rapids with a mix of fast feeds for moving around the part. It's a pain running a Tool into a part on a Mill, but a major headache running the Lathe turret into the Spindle 😬 I like the Watch you're wearing with the shaded area for knock off time 😅 Looking forward to seeing another video to continue the series with the small engine build 👍👍
G’day Peter. Thanks mate. Yes very spoilt. That MM2 has a 4th axis and through spindle cooling too. Once I prove the program I run 100% rapids, but if it’s the first cycle for the day I’ll slow it all down just to make sure it’s all good. I agree mate, a CNC lathe is a whole different beast. You don’t want to smash that turret. Talk soon mate. Aaron
Pucker factor. Having machine a lot of timber shapes screwed to a spoilboard, I can totally relate to that. I liken it to IFR flying. You have to trust your calcs knowing the tool is going exactly where you told it, but is still scary. Just curious. Why didn't you machine that part mirrored so when you tighten the cap screw, it rotated into the dowel pin instead of relying on pushing it into the pin? Not a criticism just a question.
G'day Murray. I appreciate the feedback and totally agree with you. I should have done the mirror option, but only realised this after I made it and tried it out. As a teacher we are always time poor, chasing our tail, and laziness got the better of me. Cheers, mate.
Thank you so much for the kind accolades. I really do love teaching the students. I hope they remember the lessons taught on their journey through life. Cheers, Aaron.
Hi Douglas. I should have cut that keyway on the ST20Y, but didn’t have a 3mm end mill on hand. Will have to cut manually in my mill with a dividing head at home. Fml 🤦♂️
Hi Kevin. Always good to hear from you. Thank you, I appreciate the feedback mate. Hopefully I get more shop time in the coming months. Cheers Aaron 👍🍻
Hey Peter 👋. Thanks mate, it’s a cool little project. In hindsight I should’ve machined this part the opposite way, large dia and hole first, flip part into machined soft jaws and then the OD turn steps and face. However as I’m only machining 10 pairs, I didn’t want to waste a set of soft jaws. Oh course and you know me I used Confusion CAD CAM. You would’ve written the program manually at the controller and still beaten me lol 😂 Cheers Peter🍻
@@DCT_Aaron_Engineering Got to ❤️ that ConFusion 360 👌😀 I must admit I would be struggling to write a Y Axis part by hand ?? Yes I still think I am running a Manual Lathe and programming everything by hand 😁 Looking forward to watching the whole series. Definitely looks like an interesting project to share 👍
G'day Chris. Thanks for watching mate. I hope lift my game soon, as I start to get a some free time and able to make more video content. Cheers, Aaron.
