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Have a look at your attitude 'wizard'. Mark is sharing his build with us, posting photos and inspiring others. Your post is not helping the project in any way. Perhaps you can link to some of your...

Health Effects from Overexposure to Epoxy



Some epoxies can take days or even weeks to fully harden. So it's good to err on the side of caution and wear protection when sanding this stuff after...

Hi Petrus

Good to see you're keeping at it. Looks like you got the right gear to get the job done! Still asking myself though why you didn't cast in flat & pre-drilled metal bars as base for the...

Hi Thomas,

Awesome build thread. Would love to see the mill with fresh paint, please keep the pics coming :)
Been looking at KFLOP, if it ends up working well for a machine this size, that would...

Very detailed design and neat execution, love it! :)

Not sure but on the photo it looks like the bottom left did not compact very well. Are there voids in the surface?

Great work Mark! Can't wait to see the de-molded result :)

I would disagree that EG is inherently more suitable for smaller machines. The benefits and challenges do scale with size for all materials (eg it isn't 'easy' to cast a 5t Mehanite frame either).

I believe EPUSELF is targeting small scale production without dedicated tools such as vibration tables or elaborate mixers. I have heard their solution has a higher epoxy percentage to make the...

Hi Mark,

Epuself is the only premix option that I am aware of

Do-it-yourself Materials:

Their main business is manufacture of polymer concrete machine beds for third party vendors. If you...

If you do it in multiple casts that cure separately then you get secondary bonds which are weaker and undesirable. You want one cohesive piece that is bonded on a molecular level; can only get it by...

Hey mate,

You'll need some kind of rotary mixer with a lot of torque. If you keep the epoxy content below 10% the mix will have a viscosity that is hard to mix. Perhaps try mixing it dry and...

It seems so easy at first but in reality there is a lot more to it than just mixing pebbles, sand and epoxy to make an instant mill. E/G is not a solution to cut cost and get a cheaper mill. By the...

Looks interesting. How will you align the two segments perpendicular?

Are the linear guides purposely ordered do did you happen to pick them up for a good price?

Weight is your friend. The more mass your mill has, the less it is affected by vibration and chatter. A heavy structure also helps if you want to drive your axis with powerful motors and achieve...

Hey mate, looks like an interesting project. I am not an engineer but here's some thoughts on the mill design.

1) A wider base could be beneficial to mate with the base / stand and reduce...

Nice build, very clean work and great photos. Looking forward to the next chapter :)

What motor are you replacing it with? Any plans to upgrade the spindle to belt drive?

Well, you may be in luck...

Boeing is closing a plant in Sydney and auctioning off equipment in the process. One bit of gear is a measuring device with 3m granite slab and air bearings.
...

Very clean job, I like your work. Looking forward to the next chapter =)