David Bigcheeseplant Posted December 25, 2018 Author Share Posted December 25, 2018 (edited) I have now had a play and it is really easy to create most wheels the Peckett one was simple I just added the balance weights and adjusted the spoke profile. As for the Manning Wardle type this was my first design and have been manufacted my Modelu see this thread http://www.rmweb.co.uk/community/index.php?/topic/102267-manning-wardle-wheels/?hl=%2Bmanning+%2Bwardle+%2Bwheels All this was done in Autodesk Fusion 360 a free download and in my opinion miles ahead of sketch-up the renderings are also done in Fusion. Edited December 25, 2018 by David Bigcheeseplant 3 Link to post Share on other sites More sharing options...
Chuffer Davies Posted December 25, 2018 Share Posted December 25, 2018 (edited) I have now had a play and it is really easy to create most wheels the Peckett one was simple I just added the balance weights and adjusted the spoke profile. As for the Manning Wardle type this was my first design and have been manufacted my Modelu see this thread http://www.rmweb.co.uk/community/index.php?/topic/102267-manning-wardle-wheels/?hl=%2Bmanning+%2Bwardle+%2Bwheels Hi David,I’ve used the link to look at your Manning Wardle wheel centres, they look very respectable and compare well with the AG wheels. Have you fitted a full set to a working model yet? I’m wondering whether you have had any issues with the plastic breaking either under use on a loco or fitting and removing them from the axle multiple times? Such a good idea of yours! Frank Edited December 25, 2018 by Chuffer Davies Link to post Share on other sites More sharing options...
David Bigcheeseplant Posted December 25, 2018 Author Share Posted December 25, 2018 Hi David, I’ve used the link to look at your Manning Wardle wheel centres, they look very respectable and compare well with the AG wheels. Have you fitted a full set to a working model yet? I’m wondering whether you have had any issues with the plastic breaking either under use on a loco or fitting and removing them from the axle multiple times? Such a good idea of yours! Frank I have fitted the to a RT models Manning Wardle K class but have not finished it as yet but can't see with care in assembly no problems should arise. Link to post Share on other sites More sharing options...
David Bigcheeseplant Posted December 25, 2018 Author Share Posted December 25, 2018 Low profile boy racer wheels! Link to post Share on other sites More sharing options...
David Bigcheeseplant Posted December 26, 2018 Author Share Posted December 26, 2018 A set of 9f wheels I need to remove the flanges on the centre drivers. Link to post Share on other sites More sharing options...
michl080 Posted December 26, 2018 Share Posted December 26, 2018 I think from memory that the spokes were generally oval but I haven't found a drawing to help with that yet. Below is an an extract from a Dubs GA drawing showing a section through a 4'-9" driving wheel which may help with the shape of the spokes in the other plane. Morning Andy, you are right. The spokes need to be elliptical to minimize the mechanical stress. Here is a picture of a Bavarian S3/6 wheel. Sorry, I couldn't find a British example... Please note that the dimensions are metric :-) Michael 1 Link to post Share on other sites More sharing options...
David Bigcheeseplant Posted December 26, 2018 Author Share Posted December 26, 2018 I can change the spoke profile, although I don't think any 4mm wheel manufacturers have oval spokes. Here are the 9F wheels with a few mods, The more info I can get the more acurate I can get these wheels. I may see if I can print some centres off although wonder how easy it is to get tyres made on a CNC lathe. Link to post Share on other sites More sharing options...
Nimbus Posted December 26, 2018 Share Posted December 26, 2018 I can change the spoke profile, although I don't think any 4mm wheel manufacturers have oval spokes. Exactoscale certainly did. Ultrascale do, on the visible face. The Nim. Link to post Share on other sites More sharing options...
asmay2002 Posted December 26, 2018 Share Posted December 26, 2018 (edited) Here are the 9F wheels with a few mods, The more info I can get the more acurate I can get these wheels. Stanier and later LMS wheels and those on the BR standards had a very distinctive triangular fillet just inside the wheel rim not present on earlier wheel designs. This is sometimes called a bevelled rim. The picture below is a 9F driver. Edited December 26, 2018 by asmay2002 Link to post Share on other sites More sharing options...
David Bigcheeseplant Posted December 26, 2018 Author Share Posted December 26, 2018 I have put the bevel rim on the 9F wheels I maybe need to increase the angle although popping the bevel on the wheel is part of the table I pop the info in to. Link to post Share on other sites More sharing options...
David Bigcheeseplant Posted January 2, 2019 Author Share Posted January 2, 2019 (edited) I have been working up my wheel generator even more, it now includes the flare of the spokes in to the hub and adjustable spoke profile. Edited January 2, 2019 by David Bigcheeseplant 2 2 Link to post Share on other sites More sharing options...
AndyID Posted January 6, 2019 Share Posted January 6, 2019 I have been working up my wheel generator even more, it now includes the flare of the spokes in to the hub and adjustable spoke profile. Very nice too! I came across this yesterday. The wheel on the left was printed on my cheapo printer in PLA. I printed it a while back more as an experiment than anything else. At this cruel magnification it's obviously not as crisp as the Romfords but at normal viewing distance it's pretty convincing. PLA is quite tough too (and also inexpensive). I'll probably try a full set on a locomotive in the future but that might not be for a while. Andy Link to post Share on other sites More sharing options...
AndyID Posted January 7, 2019 Share Posted January 7, 2019 Here's a pic of a Black Five. Link to post Share on other sites More sharing options...
Dazzler Fan Posted January 7, 2019 Share Posted January 7, 2019 My uncle was a wheelwright of the wood kind from the 1930's and restored old road vehicles at Goring-On-Thames into the 1970's when his collection was sold. Oval spokes, YES, hence the "SPOKE SHAVE." N My uncle was a wheelwright of the wood kind from the 1930's and restored old road vehicles at Goring-On-Thames into the 1970's when his collection was sold. Oval spokes, YES, hence the "SPOKE SHAVE." N Link to post Share on other sites More sharing options...
David Bigcheeseplant Posted June 30, 2019 Author Share Posted June 30, 2019 (edited) I have brought a 3D printer and these are the first prints off it so the idea does work. there are two prints on the axle for a Southern E1, the front and rear driver and the centre axle with a larger balance weight. Edited June 30, 2019 by David Bigcheeseplant 6 Link to post Share on other sites More sharing options...
jdb82 Posted June 30, 2019 Share Posted June 30, 2019 9 minutes ago, David Bigcheeseplant said: I have brought a 3D printer .... They look very good quality. Which 3D printer did you buy? Link to post Share on other sites More sharing options...
Nimbus Posted June 30, 2019 Share Posted June 30, 2019 1 hour ago, David Bigcheeseplant said: I have brought a 3D printer and these are the first prints off it so the idea does work. there are two prints on the axle for a Southern E1, the front and rear driver and the centre axle with a larger balance weight. How much trial and error was needed to get a functional fit to the axle? The Nim. Link to post Share on other sites More sharing options...
David Bigcheeseplant Posted July 1, 2019 Author Share Posted July 1, 2019 8 hours ago, jdb82 said: They look very good quality. Which 3D printer did you buy? I got a anycubic proton. the wheels where the second print so I had the axle hole at 1/8 or 3.18mm and the axle was a perfect fit but I will reduce it slightly to get more of an interference fit. It is a bit of a learning curve but a bit easier than I thought it would be. 1 Link to post Share on other sites More sharing options...
Chuffer Davies Posted July 1, 2019 Share Posted July 1, 2019 I continue to follow this topic with considerable interest. This approach has enormous potential for those of us either designing our own kits or scratch building models for which the correct wheels are unavailable. A problem I have experienced with the larger diameter AG wheels at times is that the spokes have sheared when trying to remove the wheel by twisting and pulling after previously installing it on an axle. Have you had any issues with the materials you have used and which plastics have you tried? Keep up the good work - please. Frank Link to post Share on other sites More sharing options...
David Bigcheeseplant Posted July 14, 2019 Author Share Posted July 14, 2019 Some more 3D printed wheels, I may print off the Peckett wheels later today and see how they look. 2 1 Link to post Share on other sites More sharing options...
Gordon A Posted July 14, 2019 Share Posted July 14, 2019 I think you may have a market for EM and P4 Peckett wheels if they are 3ft diameter 11 spoke etc for the Hornby Peckett. I have sold the first batch of fifty one chassis kits and currently have a waiting list for another fifteen. Gordon A Link to post Share on other sites More sharing options...
David Bigcheeseplant Posted July 14, 2019 Author Share Posted July 14, 2019 35 minutes ago, Gordon A said: I think you may have a market for EM and P4 Peckett wheels if they are 3ft diameter 11 spoke etc for the Hornby Peckett. I have sold the first batch of fifty one chassis kits and currently have a waiting list for another fifteen. Gordon A Can you let me know the crack throw and if the pin is in line or between spokes, also did yo need balance weights too? Link to post Share on other sites More sharing options...
David Bigcheeseplant Posted September 8, 2019 Author Share Posted September 8, 2019 Some prints of 9F wheels I made today. Link to post Share on other sites More sharing options...
David Bigcheeseplant Posted September 8, 2019 Author Share Posted September 8, 2019 5 4 Link to post Share on other sites More sharing options...
Atso Posted September 11, 2019 Share Posted September 11, 2019 Those look incredible David. If I may ask please, are you printing these directly on the build plate? Link to post Share on other sites More sharing options...
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