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Show"N"Tell ( Your Machines) / DIY Epoxy Frame based CNC MILL
« on: January 21, 2019, 08:20:46 AM »
Hi all
Its been a while since I popped in here, been pretty busy work wise.... and not enough workshop time.
Anyway I have started building a new CNC Mill and have started a blog here: https://www.model-engineer.co.uk/forums/postings.asp?th=139042
As you can see the build uses Mineral Castings (Epoxy granite in the US) The molds and many of the parts are laser cut steel.
I decided to make it as small as possible due to my small workshop space is at a premium. As you can see it will fit into a 1 Metre (about 40") cube plus the stand. It will not be a light machine and will weigh several hundred kilograms a kilogram is equal to 2.2 pounds approx. the travels are 520 x 300 mm If I had more room I would have made the 300 mm 700 mm Z axis is 250mm clear under the gantry plus tool shank allowance. For the odd time I want more clearance I will use the manual V mill. Less Z travel should improve the stiffness.
I have a mach 3 license so will control it with that. Drives will be DC servos old from stock but in good condition.
Currently the cross-member and two columns are cast. the base is next maybe this week. Nearly all the components and the molds are laser cut steel already done. So far I am really pleased with the accuracy of the castings.
Anyway if you are interested keep an eye on the thread I will keep posting as the build progresses.
Regards
John
Its been a while since I popped in here, been pretty busy work wise.... and not enough workshop time.
Anyway I have started building a new CNC Mill and have started a blog here: https://www.model-engineer.co.uk/forums/postings.asp?th=139042
As you can see the build uses Mineral Castings (Epoxy granite in the US) The molds and many of the parts are laser cut steel.
I decided to make it as small as possible due to my small workshop space is at a premium. As you can see it will fit into a 1 Metre (about 40") cube plus the stand. It will not be a light machine and will weigh several hundred kilograms a kilogram is equal to 2.2 pounds approx. the travels are 520 x 300 mm If I had more room I would have made the 300 mm 700 mm Z axis is 250mm clear under the gantry plus tool shank allowance. For the odd time I want more clearance I will use the manual V mill. Less Z travel should improve the stiffness.
I have a mach 3 license so will control it with that. Drives will be DC servos old from stock but in good condition.
Currently the cross-member and two columns are cast. the base is next maybe this week. Nearly all the components and the molds are laser cut steel already done. So far I am really pleased with the accuracy of the castings.
Anyway if you are interested keep an eye on the thread I will keep posting as the build progresses.
Regards
John