Louis Luu Posted April 8, 2023 Share Posted April 8, 2023 I want to make a toy version of this....just relaxing today. Thee are all the available pictures I have. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 8, 2023 Author Share Posted April 8, 2023 All lined up so the perspective come out correct. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 9, 2023 Author Share Posted April 9, 2023 Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 10, 2023 Author Share Posted April 10, 2023 Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 11, 2023 Author Share Posted April 11, 2023 one piece at a time. Will smooth it out later. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 11, 2023 Author Share Posted April 11, 2023 I made the iron core hollow with 2mm thickness....less weight and cost effective. The bell two side piece will be printed in brass. The iron core for the wire is a bit smaller in diameter than the drawings so wires can be wrapped. Quote Link to comment Share on other sites More sharing options...
Jim Kovar Posted April 11, 2023 Share Posted April 11, 2023 (edited) 2 hours ago, Louis Luu said: I made the iron core hollow with 2mm thickness....less weight and cost effective. The bell two side piece will be printed in brass. The iron core for the wire is a bit smaller in diameter than the drawings so wires can be wrapped. Is this going to bea working model? Edited April 11, 2023 by Jim Kovar Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 11, 2023 Author Share Posted April 11, 2023 3 minutes ago, Jim Kovar said: Is this going to bea working model? Hope so. I got me a demo winding motor to try to figure how to wind motors and hook them up. I will most likely need help from David Cherry with the machining....not very good at that. I am aiming for a toy size with the ceiling blade portion around 12 inch in diameter. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 11, 2023 Author Share Posted April 11, 2023 No cage. Quote Link to comment Share on other sites More sharing options...
Phillip Scott Posted April 11, 2023 Share Posted April 11, 2023 I can't wait to see this creation. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 12, 2023 Author Share Posted April 12, 2023 Fixed the curvatures on the end cap. A bit blending will get rid o the sharp lines. The end cap is removable. The two columns are separate and will make winding easier. Quote Link to comment Share on other sites More sharing options...
Jim Kovar Posted April 12, 2023 Share Posted April 12, 2023 Magnetic short circuit... Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 12, 2023 Author Share Posted April 12, 2023 Cleaner design. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 12, 2023 Author Share Posted April 12, 2023 (edited) 13 minutes ago, Jim Kovar said: Magnetic short circuit... Please explain. I think I figured out what you are saying....I will fix it tomorrow. Edited April 12, 2023 by Louis Luu Quote Link to comment Share on other sites More sharing options...
Jim Kovar Posted April 12, 2023 Share Posted April 12, 2023 The green pieces wouldhave to be nonmagnetic. Brass most likely wouldhave been used. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 12, 2023 Author Share Posted April 12, 2023 24 minutes ago, Jim Kovar said: The green pieces wouldhave to be nonmagnetic. Brass most likely wouldhave been used. Can the endbells be brass? The green part I can print in non-magnetic steel. The rest I can print in magnetic steel. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 12, 2023 Author Share Posted April 12, 2023 I'm guessing the endbells can not be in brass....needs to have magnetic field? 1 Quote Link to comment Share on other sites More sharing options...
Jim Kovar Posted April 12, 2023 Share Posted April 12, 2023 (edited) The magnetic circuit of the Ketcher motor is basically like joining two 2-coil bipolar motors together, bottom to bottom. ldeally, the magnetic flux (the dashed lines) would be confined to field's iron cores, pole pieces and armatures. And the unavoidable but nessessary small air gaps between the pole faces and armatures. Edited April 13, 2023 by Jim Kovar 1 Quote Link to comment Share on other sites More sharing options...
Jim Kovar Posted April 12, 2023 Share Posted April 12, 2023 Now, put that on yourWeber and grill it. Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 13, 2023 Author Share Posted April 13, 2023 (edited) All fixed. The two pieces holding the magnet pole will be used as attachment points for the swivel and ceiling attachments and printed in brass. Edited April 13, 2023 by Louis Luu Quote Link to comment Share on other sites More sharing options...
Anthony Villanacci Posted April 13, 2023 Share Posted April 13, 2023 I’m not sure how true to the drawings you are intending to be, but to my eye the original assembly was something like this. Anthony 2 Quote Link to comment Share on other sites More sharing options...
Louis Luu Posted April 13, 2023 Author Share Posted April 13, 2023 7 minutes ago, Anthony Villanacci said: I’m not sure how true to the drawings you are intending to be, but to my eye the original assembly was something like this. Anthony Makes more sense. I will fix this. Quote Link to comment Share on other sites More sharing options...
Anthony Villanacci Posted April 13, 2023 Share Posted April 13, 2023 On second thought, I’d wager the spacers were a single cast piece on each end. Makes more sense from a manufacturing point of view. My proportions are off in the drawing but hopefully you get the idea. I like your idea to recreate this motor from the drawings, I’m excited to see your progress. Anthony 1 Quote Link to comment Share on other sites More sharing options...
Jim Kovar Posted April 13, 2023 Share Posted April 13, 2023 2 hours ago, Anthony Villanacci said: ...to my eye the original assembly was something like this. Anthony, I think you are dead on. I especially dig and totally agree with your spacer bracket revision. This would ensure perfect spacing between the cores and make for a more rigid assemblage. Quote Link to comment Share on other sites More sharing options...
Jim Kovar Posted April 13, 2023 Share Posted April 13, 2023 (edited) I also dig your integral one piece cores. No magnetic joints... Less reluctance...That's a good thing! Edited April 13, 2023 by Jim Kovar Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.