Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.

Pete Rondeau · Post by **Pete Rondeau** » Thu Dec 12, 2019 3:14 pm

Reassembly Begins on the Dyna Myte 2800 Centroid Retrofit. This week I start cleaning up some parts in preparation for reassembly. Ran a piece through the Purple Power, Evapo-rust and finally the Oxpho-Blue combo. I check out the Z axis screw then get all 3 axes moving under control of the Centroid Acorn Controller

Post by **martyscncgarage** » Thu Dec 12, 2019 6:01 pm

Thanks for keeping us updated Pete. Should be a nice machine when done.
I would try and replace the DC Brush motor with a 3 phase motor and a VFD if at all possible. Sure would simplify things for you.

Marty

Pete Rondeau · Post by **Pete Rondeau** » Fri Mar 20, 2020 10:13 am

Finally getting back to this project. Had a few other priorities to start the year off. Feels good to be making forward progress again.

Pete Rondeau · Post by **Pete Rondeau** » Sat Apr 11, 2020 4:21 pm

One step closer to making chips.. The DMM AC servo motor is mounted, at least temporarily, to the Dyna Myte 2800

Pete Rondeau · Post by **Pete Rondeau** » Thu Apr 23, 2020 8:41 am

I got the electrical panel finished and mounted back in the freshly painted electrical cabinet. Really pleased and surprised with how this is starting to come together now. I can see the light at the end of the tunnel.

Post by **martyscncgarage** » Thu Apr 23, 2020 12:50 pm

Looking good Pete. My only concern is that it appears you might be using ONE large 24VDC power supply to power Acorn and also use it for other control circuits. That isn't a good idea if you are. Best to either use the power supply that came with Acorn FOR Acorn or buy a small 24VDC +1A din rail mounted power supply for Acorn.

Marty

Pete Rondeau · Post by **Pete Rondeau** » Mon May 04, 2020 8:25 am

Had to fabricate a few odds and ends to begin putting this machine back together. Decided to 3D print them.

Post by **martyscncgarage** » Mon May 04, 2020 9:42 am

Looking good Pete. Dyna Mechtronics made some good machines, very worthy of retrofits.
The smaller DM2000 series mills and DM3000 lathe, used a trapezoidal precision screw with nuts made out of Turcite. The nut is adjustable to take out backlash. Unfortunately, when the nut wears out, You have to make another one yourself or refit with small ballscrews, as they are not available As you found, the larger machines use ballscrews.

Pete Rondeau · Post by **Pete Rondeau** » Mon Jun 01, 2020 11:40 am

Starting to go down the final punch list of items needed to finish up this retrofit.

Post by **cnckeith** » Tue Jun 02, 2020 9:49 am

Nice video series!

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Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.

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Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.

Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.

Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.

Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.

Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.

Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.

Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.

Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.