Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.
Posted: Thu Dec 12, 2019 3:14 pm
by Pete Rondeau
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
Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.
Posted: Thu Dec 12, 2019 6:01 pm
by martyscncgarage
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
Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.
Posted: Fri Mar 20, 2020 10:13 am
by Pete Rondeau
Finally getting back to this project. Had a few other priorities to start the year off. Feels good to be making forward progress again.
Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.
Posted: Sat Apr 11, 2020 4:21 pm
by Pete Rondeau
One step closer to making chips.. The DMM AC servo motor is mounted, at least temporarily, to the Dyna Myte 2800
Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.
Posted: Thu Apr 23, 2020 8:41 am
by Pete Rondeau
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.
Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.
Posted: Thu Apr 23, 2020 12:50 pm
by martyscncgarage
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
Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.
Posted: Mon May 04, 2020 8:25 am
by Pete Rondeau
Had to fabricate a few odds and ends to begin putting this machine back together. Decided to 3D print them.
Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.
Posted: Mon May 04, 2020 9:42 am
by martyscncgarage
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.
Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.
Posted: Mon Jun 01, 2020 11:40 am
by Pete Rondeau
Starting to go down the final punch list of items needed to finish up this retrofit.
Re: Pete Rondeau is video blogging his Acorn build on his Dyna Myte 2800 bed mill.