Scale-Master Posted January 23, 2020 Author Share Posted January 23, 2020 I machined tool to make controlling the parting line in the wheel molds easier. It locks into the back of the wheel center like the rear piece of the rims. Clay is used to seal one side. Quote Link to comment Share on other sites More sharing options...
Scale-Master Posted January 26, 2020 Author Share Posted January 26, 2020 Then I cast the side that contains the face of the wheel in RTV so that the seams are all on the inside of the wheel and quite minimal at that. Quote Link to comment Share on other sites More sharing options...
Anglia105E Posted January 26, 2020 Share Posted January 26, 2020 You could apply for a patent on that tool, Mark....... ? David Quote Link to comment Share on other sites More sharing options...
Scale-Master Posted January 27, 2020 Author Share Posted January 27, 2020 Very doubtful David. It only works on these wheels and it is just a means to an end to control a mold line. Quote Link to comment Share on other sites More sharing options...
Mattilacken Posted January 30, 2020 Share Posted January 30, 2020 Nice work! You are for sure making som great progress, been following this on AF before. /Gveman Quote Link to comment Share on other sites More sharing options...
Scale-Master Posted February 2, 2020 Author Share Posted February 2, 2020 (edited) Thanks Anton! The half-shafts are done for now. The yokes are cast resin (dyed black) copies of 3D parts. The shafts are brass acid treated for the dark finish. Each U-joint has four bearings/caps (with E clips) and they work. The half-shafts telescope too. Edited February 2, 2020 by Scale-Master Quote Link to comment Share on other sites More sharing options...
porschercr Posted February 2, 2020 Share Posted February 2, 2020 Just amazing! Quote Link to comment Share on other sites More sharing options...
Scale-Master Posted February 6, 2020 Author Share Posted February 6, 2020 Thanks Trevor! I was going to have to adjust the rotor hubs (or make shims) so I decided to mill a new one out of resin stock instead of editing the 3D file and growing a replacement. This was quicker too. Quote Link to comment Share on other sites More sharing options...
LaughingIndian Posted February 7, 2020 Share Posted February 7, 2020 Thanks for the posts and pics Mark. This is just wonderful ... although a sport I’ll never be able play ... but inspiring nonetheless. Great great work! Quote Link to comment Share on other sites More sharing options...
Rich Chernosky Posted February 7, 2020 Share Posted February 7, 2020 Mark..have been following this post from the beginning. And I have seen a few of your other completed models. Thank you so much for explaining in detail what you are doing. Now I know the method to your madness and appreciate your other models even more. Can't wait to see it finished..it should be world class. How long have you been 3D printing BTW. Did you do some of this on your other models?? Quote Link to comment Share on other sites More sharing options...
Scale-Master Posted February 7, 2020 Author Share Posted February 7, 2020 Thanks Mike and Rich. I only starting doing my own printing a couple months ago, before then I subbed out my files to a company called Fraxional for the actual printing. The first model I used 3D printed parts on was my Gulf Seven. (Have been using the processes for my "real" work for years.) I had the coil and ignition box grown. This one will have more 3D generated parts than any previous model of mine. But most of the 3D parts are used as masters to cast resin copies. Quote Link to comment Share on other sites More sharing options...
Bugatti Fan Posted February 8, 2020 Share Posted February 8, 2020 It is coming on well Mark! Quote Link to comment Share on other sites More sharing options...
Scale-Master Posted March 8, 2020 Author Share Posted March 8, 2020 I designed and then grew the rotors several times over the course of a few months. The detail I want is just not something my printer can do on both sides. (One side is great.) I redesigned them adding more material so I could post-machine after growing them, but the material is too brittle when cured, and too soft and pliable before fully curing. I was able to make them look really good after machining, but every one of them had micro fractures (or worse) that would show up under paint. The good side of them: The rough side of them before machining: Quote Link to comment Share on other sites More sharing options...
Scale-Master Posted March 8, 2020 Author Share Posted March 8, 2020 So after way too much time and effort without acceptable results, I went back to my original plan to make the rotors before I got the 3D printer… Good old machining. First I milled in the rectangular vent holes around the perimeter. Then I cross-drilled 60 holes in each side. Quote Link to comment Share on other sites More sharing options...
porschercr Posted March 8, 2020 Share Posted March 8, 2020 Mark, The rotors look great. I admire your patience drilling 60 holes each side. Trevor Quote Link to comment Share on other sites More sharing options...
Scale-Master Posted March 9, 2020 Author Share Posted March 9, 2020 Thanks Trevor. Those 60 holes I did today were a breeze compared to the rectangular vents I milled around the perimeter yesterday. Quote Link to comment Share on other sites More sharing options...
porschercr Posted March 9, 2020 Share Posted March 9, 2020 1 hour ago, Scale-Master said: Thanks Trevor. Those 60 holes I did today were a breeze compared to the rectangular vents I milled around the perimeter yesterday. Your welcome. I'm sure that was no fun. Quote Link to comment Share on other sites More sharing options...
Scale-Master Posted March 9, 2020 Author Share Posted March 9, 2020 It's all fun. Why else do it? Quote Link to comment Share on other sites More sharing options...
porschercr Posted March 9, 2020 Share Posted March 9, 2020 7 minutes ago, Scale-Master said: It's all fun. Why else do it? ? Quote Link to comment Share on other sites More sharing options...
Scale-Master Posted March 9, 2020 Author Share Posted March 9, 2020 As satisfied I was at the time, the more I looked the more I thought I could do better… So more time on the mill and now I think I have what I want. These cross-drilled holes scale out to ¼ inch in diameter. Quote Link to comment Share on other sites More sharing options...
Scale-Master Posted April 16, 2020 Author Share Posted April 16, 2020 I decided to go with my earlier rotor configuration; slotted and cross-drilled. Raw rotor blanks cut from high-pressure cast blank aluminum composite material. I milled the vents around the perimeter and faced them. I cross-drilled and slotted them. They are directional. This is the natural cut finish of the material. Quote Link to comment Share on other sites More sharing options...
Pete J. Posted April 17, 2020 Share Posted April 17, 2020 Mark, with your ventures into 3D printing, I am surprised you never converted you mill and lathe into computerised machines. Neither CAM or 3d is perfect for every job, but they each do things better the other. I always seem to get more satisfaction when the chips are flying and makin a mess. ? Quote Link to comment Share on other sites More sharing options...
Scale-Master Posted April 17, 2020 Author Share Posted April 17, 2020 I'd have to either have my mill fully rebuilt or buy a new one to go CNC. (New is the way I'd go.) I'm with you Pete, I still like to drive it manually. Quote Link to comment Share on other sites More sharing options...
Codi Posted April 19, 2020 Share Posted April 19, 2020 I'd still like to have the CAD skills you possess Mark. It makes you the entire package when it comes to creating things. Nice to always have that tool in the tool box even though you've not pulled it out just yet. Been a while since I checked in on the project but I certainly wasn't disappointed. Great work sir. cheers, tim Quote Link to comment Share on other sites More sharing options...
Scale-Master Posted May 6, 2020 Author Share Posted May 6, 2020 Thanks Tim! One year "birthday" for this project. 1 Quote Link to comment Share on other sites More sharing options...
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