Thought I would move / post some new pics into a new thread in the new section.
Constructive criticism is welcome - as always.
PS - Fabrice, I haven't forgotten but I have just (more or less) got back!!!!
The tracks were made from a plastic which is formed using a rapid prototype machine, not cheap but worth it as I can now double check against the wheels (when they arrive) and sprocket before I commit to getting any cast.
Please please tell me where I can get those track links from mate.
I'm planning building a FV432 (used to work on them when I was in the Army)
I know the Warrior links have different detail (however quite similar) but I'm prepared to 'overlook' that for a good functioning links like these
Hope you can help
I would be happy to help you. However they have been deisgned by me on Inventor, and have been fabricated using a rapid prototype machine.
I can if you wish (if you supply some drawings, in particular the areas that are incorrect) update my inventor model and get some tracks made for you via the rapidprototype machine. The cost for me updating the model would be for free (assuming I can just tweak my model), but getting the links made would be to your own cost (currently about Â£35 per link exl vat and P&P).
Let me know what you think, if your happy about the links we maybe able to get a joint casting job done to reduce the initial costs involved.
The link pitch, ie space between pin to pin is 25mm (exact).
Can you send me an email at the email address I sent to you?
I export my drawings to STL (this I think stands for Sterolithography aka rapid prototype), I have some more parts to get made I'll post them as they become available.
for exporting to a laser cutting company i send them dwg files, and for exporting drawgings to machining companies, i give them IGES and dwg files.
I use inventor and have just taught it to my self over the last 6 months or so. Once you get the hang of it, it's really straight forward to use....... the key difference is I am not using AutoCAD lt or 2005 etc, i am using a dedicated 3d software package. AutoCAD does do 3d but it does it in a really really really complicated way, inventor does it infinatly simplier.
For instance I designed my sprocket ring on inventor in a little over 4hrs, but I spent a good deal of time (3 - 4 weeks) researching the required design considerations to make it work (calcs etc). I'll post a pic of it in the next few days, it engages the teeth really really sweetly. 8)
Just gathered together some pics of my warrior project. Thought I would chuck them up!!
I will post pics of my sprocket ring, once I get my camera charged!!!
At present My roadwheels should be finished within the next week or two, the idler wheel is about ready to start fabrication. The main sprocket is very close to being able to commence fabrication as well, just trying to think of a good way to retain the sproket on the shaft....
My front bearing housing has worked out really well so far, soon to get a plastic version made.
My swing arms are hopefully going to get cast in the next couple of weeks depending on cash and whether i end uo going for a basic version of the same thing.....
The trouble is the warrior (because it's sits high up) shows off its running gear and suspension really well and so to not pay enough attention to detail at this stage will ruin the effect.
Comments as always most welcome.
I might when (some say if) i get it finished to produce all the required engineering drawings (from the actual prototype model) and make them available to purchase over the web. Much like how Iljak does his gearbox designs.
As for converting the design to 1/16, anything is possible, however I have gone to great lengths to make this work as a 1/6th scale model and so I doubt it would be a simple case of resizing the drawings and sending them off to get fabricated!!!
I won't be making an effort to convert it to 1/16th scale, but it doesn't have to be done by me!!!
Cheers and thanks for the encouragement so far!!
Progress made over the last two weeks:
I've had few parts made, all the roadwheels arrived on Friday.
More rapid prototypes have been made, swing suspension hub etc.
More parts sent off tonight for costs and subsequent manufacture.
The Idler wheels are also being costed at the minute, slightly more expensive than I first imagined so I'll have to think about this one for a little while.
The main sprocket hub (ie what the sprocket ring will bolt onto) will be tweaked in a few weeks time before going to get costed and manufactured.
I have received a quote today about getting tracks cast. I can get them cast in Brass for Â£580 (300 links) if i supply the wax masters......sounds good to me, I'll hold off until I have the wheels and chassis finished. Anybody have any advice on this, i.e. brass or aluminium??
In the mean time I'm looking into getting a rubber mould made of a link, and conducting research into types of wax used. If it's cheap enough, it might be something I could do over the next 3 - 4 months, casting 300 wax links!!!! In addition I'm sending one of my plastic track links down to the foundry so they can cast a test piece to confirm if they can get the link holes cast in place. Apparently they work on an accuracy of 0.01mm, that's pretty fecking good, especially as I told them that I worked on a 0.5mm tolerance!!
Have also made contact with a rubber supplier who is getting together a rough cost for me to get the rubber bonded on all the wheels. I'll post more details when I get them.
Please see the attached pics of the components made so far! 8)
Box of bits, 14 roadwheels (incls 2 spare)
Roadwheel with swing arm and suspension hub attached (oh and tracks)
Sprocket ring (ie this is bolted to the sprocket hub). They mesh with the track link very very sweetly i'm really really impressed with this!!!!
Warriors main drive hubs (1x, once design is completed will get another)
You'll notice the bearing is not sealed (whoops, that will be changed when installed properly and loctited into position).
Final pic to round off the night!!!!
Advice or observations as always welcomed. Incedently if anyone knows of good compact gearboxes let me know, at the moment I'm planning to use chain drives to get into the recessed hub, but I am open to better ideas!!
PS I know the spellings a bit dodgy but what the hell!!!!
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