Attaching the .stl files. There is a full piece, and then a bottom half piece. For the green sand two part mold, I'll first use the bottom half piece, fill one half of the mold with sand, pack it firm, then flip it over, remove the bottom half, replace with the full piece, dust with talc, add the top part of the mold and fill/pack with sand. Cut in sprew and vent. Then lift off the top, remove the full piece, replace the top, and pour.?
Sounds like we are on similar/parallel paths - yes, same exact DC motor (3 holes instead of 4), and to SLs, one lathe and one mill.
Might give Fusion 360 a try. I can help answer questions with that but not the others.
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On Apr 19, 2023, at 11:48 AM, William R. Meyers <
wmrmeyers@...> wrote:
One like yours would be a good start, I think. Motors I'm going to be using are the ZY6812 150W 24vdc motors. Drawing for them shows 4 holes, but I think the motors actually have three, like you mention. I have Solid Edge loaded on the computer, and don't seem to have enough concentration to stick with the training videos. Had the same problem with Solid Works, and FreeCad, and all the others. I've got two Unimats, a DB & an SL, according to their labels, but both are alloy castings. One has plastic handles, the other aluminum. Planning on setting one up as a milling machine, and the other as a lathe. Also planning on having slow-speed and high speed capabilities, by changing out the motor plates and pulleys.?
I do have a larger lathe, an Atlas TH42 that is operational, and three other machines that are supposed to be milling machines. One of them might actually work with a little TLC.?
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.?
SEMPER GUMBY!
Expect in one hand, expectorate in the other. See which one gets full first.
On Wednesday, April 19, 2023 at 12:08:35 PM CDT, Steve Johnson <
steve@...> wrote:
Bill, if you are needing a mount like mine, for a DC motor and without the idler shaft clamp, I will happily share my .STL file with you.
I will definitely be investing in slitting saws, just need to figure out what would be best for the little Unimat SL Mill setup. In the meantime, I'll take a few shaves with my band saw.
For 3D design, once you get going you won't be able to stop designing and printing. Sometimes I just print little templates and jigs. For example, the DC motor has 3 holes, 120 degrees apart. While I could lay it out by hand, I'll design a little template with the 3 holes, and a center extrusion to self center on the big hole in the mount.?
I highly recommend Fusion 360 - there is a free version, Mac or PC, which will do everything you want. A learning curve, for sure, but there are? gazillions of how-to videos online. I stick to some basic primatives, every now and then I get to learn some new tricks.
Steve Johnson