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Quote from: crueby on October 27, 2016, 11:14:57 PMQuote from: wagnmkr on October 27, 2016, 10:54:24 PMHmmmm ... Your tracks are almost exactly the same size as the 64 pieces I have printed for a radio controlled excavator that must be nearly the same scale. I might have to "borrow" your drawings for the tracks as they are way more sturdy and realistic than the printed ones.TomDid you make the rest of the excavator? I've thought about building one of those for a long time, but could not come up with a good way to control the arms/bucket without actual hydraulics.This is the one I am doing. http://www.thingiverse.com/thing:50110 It is all printed and I am in the process of making the fastenings and fitting everything together. The "real" R/C ones from Europe do have mini hydraulic systems in them and are all metal, so very heavy. The tracks on this one are very simplistic and since I am not so good with drawing programs, it would be easier for me to machine a set.Tom
Quote from: wagnmkr on October 27, 2016, 10:54:24 PMHmmmm ... Your tracks are almost exactly the same size as the 64 pieces I have printed for a radio controlled excavator that must be nearly the same scale. I might have to "borrow" your drawings for the tracks as they are way more sturdy and realistic than the printed ones.TomDid you make the rest of the excavator? I've thought about building one of those for a long time, but could not come up with a good way to control the arms/bucket without actual hydraulics.
Hmmmm ... Your tracks are almost exactly the same size as the 64 pieces I have printed for a radio controlled excavator that must be nearly the same scale. I might have to "borrow" your drawings for the tracks as they are way more sturdy and realistic than the printed ones.Tom
You are right. After another look, I better stay with what is there. That will be a neat way to weed the garden ... while sitting on the porch with cookies ... or stinking hoppies ... or something.Tom
Quote from: wagnmkr on October 28, 2016, 01:30:08 PMYou are right. After another look, I better stay with what is there. That will be a neat way to weed the garden ... while sitting on the porch with cookies ... or stinking hoppies ... or something.TomAre the printed parts strong enough to actually dig?
That is a LOT of cutting Chris. The fit looks spot on though. This is one of those jobs where CNC would be nice but you are almost as fast in manual mode Bill
Quote from: b.lindsey on October 29, 2016, 01:35:55 AMThat is a LOT of cutting Chris. The fit looks spot on though. This is one of those jobs where CNC would be nice but you are almost as fast in manual mode BillThanks Bill! Even with CNC you would have to stay there and change parts, clear chips, etc. Doing these manually really isn't taking that long, and the results are so worth it. The spacing is making it straightforward, 1/8 mill for 1/8" slot, fingers are 1/8" too, so start at zero, turn in/out 4-1/2 turns, move down 5 turns, repeat. For opposite side, reset zero at 2-1/2 turns over once, and same process again. Its only a couple hours of shop time for the whole set.Things will get interesting when I get to the drive and roller chains. To reproduce them accurately to the original will take a lot of time, but those are the details I love in a true scale model. Like the details in this ship model...
Quote from: crueby on October 29, 2016, 02:25:24 AMQuote from: b.lindsey on October 29, 2016, 01:35:55 AMThat is a LOT of cutting Chris. The fit looks spot on though. This is one of those jobs where CNC would be nice but you are almost as fast in manual mode BillThanks Bill! Even with CNC you would have to stay there and change parts, clear chips, etc. Doing these manually really isn't taking that long, and the results are so worth it. The spacing is making it straightforward, 1/8 mill for 1/8" slot, fingers are 1/8" too, so start at zero, turn in/out 4-1/2 turns, move down 5 turns, repeat. For opposite side, reset zero at 2-1/2 turns over once, and same process again. Its only a couple hours of shop time for the whole set.Things will get interesting when I get to the drive and roller chains. To reproduce them accurately to the original will take a lot of time, but those are the details I love in a true scale model. Like the details in this ship model...I suppose you knocked out that ship on coffee break! Now that you posted the picture of that beautiful model.........we need more details about it......lots of details! Jim