Zenoah 30.5cc engine build part 1- Piston Mod/lighten using a cnc 6040 router 

Thats a good idea i will do that, i need to find a nice low profile vice

@@makeorbreak2798 harbor freight man, 20 bucks. Very low profile vice, 4 bolts to secure, looks like the drill press table with slots.

@@SnookTuned nice 👍 i will have a look

Awesome these aircooled engines run extremely hot it seems this one hasn’t seized (luckily) and been well over 200c, I normally relieve the top outer diameter as well.

Yeah ok i will do this when i machine the combustion chamber

Yep i use fusion 360 to draw what i want the piston to look like and then create the tool path, from there you send the code to your control software (i use mach 3) and that controls the router, but first you need to design or copy the holder i that i made, its a lot of mucking around but once done its repeatable.

Just a few issues missing steps & loosing sync its easily sorted.

Thank you🙏 its the common alloy 6040 you will see on alliexpress i have since upgraded the gantry using the same machine. 👍

Thanks, could you maybe post me a link? There's a whole bunch on there but I didn't see the one that you mentioned.

@@adammancini7662 sure US $1,377.13 9％ Off | [EU Free Tax] 4 Axis USB Port 6040 2.2KW 2200W Water Cooled Spindle Motor USB Mach3 CNC Router Engraving Milling Machine 220V a.aliexpress.com/_mPUYGTU

Its a cq9332 lathe i am unsure but i think they are about 2000us

Yes mate the piston is good i had it too lean and it was well over 200c, its still good i have that engine apart and just been looking at the piston

As above 👍

If you do get one and have trouble with it like i did, let me know and i might be able to help, i went for the non usb version and i use a uc100 to connect via usb, gd luck.

I did just see one the other week and yep they are fairly similar