These are all machine finishes, you can just about make out some of the machining lines where the paths cross over. The only issue is the paths to get them that clear are sloooooow on larger pieces.
I know you predominantly use Datron endmills, but isn't that Hoffmann 203205 lovely? I have a few of these 5-flutes, also 203203 and 203204 and they just leave a decent finish on thicker parts with just a few full depth passes 👍 Amazing part, btw... As always
Cool video. Why do you conventional cut with tools like the chamfer tool around the outside instead of climb cut? To make sure a chip isn't pushed into the part?
@@ExRazR Whilst it would depend on your machine and available tooling, the actual geometry for this isn’t hard. Getting the right finishes can be challenging though. Diamond finishing is very demanding, but the Datron tools can get you 90% of the way there.
@@keibohow69 It’s a bit of an open question really, it can be anywhere from a few hours to weeks depending on how many development stages are involved.
Some people get auditory stimulation from different things, like you might get a kick out of watching. ASMR videos typically have something going on where the sound is specifically clean, with no dubbing etc.
@@texasermd1 Yeah it’s more generally used for videos that will just have their plain sounds quite often. 99% of ASMR content is people just flicking the mic and whispering so it’s not a high bar 😂 I find a lot of the workshop sounds are pretty satisfying, so that’s where it applies here.
I always thought acrylic would get frosty when you machine it. That was totally crystal clear, is that because the bits of a CNC spin so fast that it cuts and buffs at the same time? Or am i just completely misunderstanding the material? Also, how many probes have you gone through? That thing looks so fragile a stiff breeze could snap it in two 😅 Awesome work all the same though 👍✌️
Well it depends. In the very beginning he was using a single flute endmill, and you can see the acrylic is very much frosty while he is roughing with it. But when he switched to the 5 flute (single flutes give poor wall surface finish compared to a multi-flute tool) and then slowed it way down it was clear. It's all about surface finish. If you can cut it perfectly smooth without chatter/tooling marks it will be clear. Also, I'm not sure his feeds and speeds, but I suspect the datron he has spins way too fast for a 5 flute tool (i have never used a datron so im no expert there), there is a lot you can dig into with that, but I'll just say because datron spindles go so fast, generally you would use a lower flute count. And because he used a 5 flute and had a very slow feed I'd bet there was some rubbing going on which helped it become clear, which you alluded to in your comment about the endmill buffing the plastic.
as a machinist myself, who hasnt machines very much plastic before, why choose carbide drills? when you're making low batch and prototype parts out of plastics, with either mist coolant or no coolant at all, why not just use HSS drills? surely the cost benefits are there
@@thisismyaccount456 These small carbide drills aren’t expensive, but they do come with H6 shanks and are much more comfortable with higher speeds. Most HSS drills don’t feature ground shanks that fit into either 3/6/8/10mm holders, they tend to be nominal. I’d need to buy specific toolholders to use cheaper drills like that.
When machining polymers, you still want fast cutting action and low friction, bc when plastics get too warm you get pretty quickly a bad surface finish or worse.
Excellent work and engineering. Please tell me what precision class the machine has: - N (Normal precision) - SP (Special Precision) Or in millimeters (0.001-0.05)
It looks good, but: • Why not make the part thinner (reduce the wall thickness between the pump mount and the liquid reservoir)? • What’s the purpose of the arc-shaped wall near the intake hole for liquid from the reservoir?
@@dendobrunia6861 Good questions, however I didn’t design the part so I can’t readily answer with accuracy. I believe the arc section is to help reduce vortices though and bubbles being sucked straight into the pump inlet.
@@PraetexDesign It seems to me that this part of the design actually negatively impacts functionality, reducing the intake area and increasing fluid stagnation under the arc (this will be especially noticeable when using dye). Overall, great execution! I didn’t notice any milling marks on the final part. Keep up the good work!
