brass is even easier to machine than aluminium, because it is harder. sounds contraintuitive, but aluminium tends to gum up and chip weld much easier than brass does.
@@joesspace4114 the aluminium shouldn't be melting during the process. perhaps the glassification point has to do with the gumming, but it does seem like the gumming is at the core of the issue, and ceramic coated bits do wonders for keeping aluminum from sticking to the bits.
Loving the latest serious on metals Winston! Curious if you might do any for those of us without a Nomad and instead with the Shapokeo and the Dewalt 611? I know in theory it's different, but not really sure what needs to change given the minimum 16k RPM.
See the guidelines mentioned on the Aluminum for Shapeoko video. Generally, scale up feedrates by same margin as spindle Speed (60%), or a tiny bit less to be conservative. -W
i have a 0.50in brass stock that needs to be surface machined to 0.416in before I can proceed with my 3D adaptive roughing and finishing tool paths: what cutting and/or end mill would you recommend for surfacing?
#278-Z Single flute 1/4” cutter to within .05mm of your final dimension. #201-Z Three flute 1/4” with a 30% reduction in stepover. This will definitely have tool marks, but should be quite smooth to the touch. Finishing after that is up to you preference. Cutter Links: shop.carbide3d.com/collections/cutters/products/278z-25-single-flute-zrn shop.carbide3d.com/collections/cutters/products/201z-250-end-mill-cutter-zrn
@@carbide3d thank you. I am new to machining brass/aluminum - very helpful! I am using a 2.2KW water cooled spindle and wondered if a 0.5in end mill would be OK?
Is the lead in free machining brass actually anything to be concerned about when using small cutters? I've done a few of these smaller pieces and I'm worried about the dust that's created by the small tooling. Stupidly, I've stood by my machine while it's been doing these operations a few times and probably breathed some of this in.
brass is even easier to machine than aluminium, because it is harder. sounds contraintuitive, but aluminium tends to gum up and chip weld much easier than brass does.
Or is it because brass has higher melting point?
@@joesspace4114 no
@@joesspace4114 the aluminium shouldn't be melting during the process. perhaps the glassification point has to do with the gumming, but it does seem like the gumming is at the core of the issue, and ceramic coated bits do wonders for keeping aluminum from sticking to the bits.
Hi, really nice videos! im wondering if brass is even harder than 7075 aluminium, is it?
Do you mind sharing where you source your aluminum and brass?
Yes! I'd appreciate that too. I'm trying to source some for my final machining project at school right now
Loving the latest serious on metals Winston! Curious if you might do any for those of us without a Nomad and instead with the Shapokeo and the Dewalt 611? I know in theory it's different, but not really sure what needs to change given the minimum 16k RPM.
See the guidelines mentioned on the Aluminum for Shapeoko video. Generally, scale up feedrates by same margin as spindle Speed (60%), or a tiny bit less to be conservative.
-W
i have a 0.50in brass stock that needs to be surface machined to 0.416in before I can proceed with my 3D adaptive roughing and finishing tool paths: what cutting and/or end mill would you recommend for surfacing?
the stock is 4in by 10in x 0.5in
#278-Z Single flute 1/4” cutter to within .05mm of your final dimension.
#201-Z Three flute 1/4” with a 30% reduction in stepover.
This will definitely have tool marks, but should be quite smooth to the touch. Finishing after that is up to you preference.
Cutter Links:
shop.carbide3d.com/collections/cutters/products/278z-25-single-flute-zrn
shop.carbide3d.com/collections/cutters/products/201z-250-end-mill-cutter-zrn
@@carbide3d thank you. I am new to machining brass/aluminum - very helpful! I am using a 2.2KW water cooled spindle and wondered if a 0.5in end mill would be OK?
Cool!
Is the lead in free machining brass actually anything to be concerned about when using small cutters? I've done a few of these smaller pieces and I'm worried about the dust that's created by the small tooling. Stupidly, I've stood by my machine while it's been doing these operations a few times and probably breathed some of this in.
Hi I want a similar CNC can you help me how to get it
shop.carbide3d.com/
@@carbide3d how much does it cost
???
@@goldensaw8489 ??? The website contains all info you need.
@@goldensaw8489 bro literally click on the link lmao