Kolpen Posted December 30, 2006 Share Posted December 30, 2006 Here is my latest creations for my John Deere 7920 tractor. Lights and an upcoming frontlift! The tractor is an ERTL 1/16th scale JD 7920 Coll Ed. made radio contolled. See more from the beginning at http://www.farmtoysforum.com/forum/index.php?topic=10802.msg181435#msg181435 I removed material from the original lights. Painted them silver inside and fittet some 3mm LED's. The 'bulb'? is made by clear epoxy and finished with a thin coat of lacquer. The rearhitch is made 'one way' working... Now it will not press the implement down and raise the drive wheels. The implements now follows the terrain: A frontlift is under construction: I am building in styrene -plastic. I wanted to build it in brass, but figured that I would start out with styrene and see how it would work. Mostly because it's a lot easier to deal with. Strenght is OK, but a little flexy. Underneath the tractor and over the stabilizer bar I will mount the servo for lifting action. For now the stabilizer is ready... Have a nice day! Anders Kolpen Denmark Quote Link to comment Share on other sites More sharing options...
Deere-est Posted December 30, 2006 Share Posted December 30, 2006 Kolpen in English translates to GENIUS!!!!! :o This is fantastic, I never new such fine engineering could be done in such a small scale. You don't miss a trick, amazing work. Quote Link to comment Share on other sites More sharing options...
CJ Posted December 30, 2006 Share Posted December 30, 2006 OMG, how do you do it looks so real keep it up Quote Link to comment Share on other sites More sharing options...
Barry Posted December 30, 2006 Share Posted December 30, 2006 I'll take 10 BRILLIANT Quote Link to comment Share on other sites More sharing options...
toyfarmer Posted December 31, 2006 Share Posted December 31, 2006 fantastic work Quote Link to comment Share on other sites More sharing options...
Kolpen Posted December 31, 2006 Author Share Posted December 31, 2006 Thank you all very much. It's nice to see so fine comments! Have a happy new year! Quote Link to comment Share on other sites More sharing options...
Kris Posted December 31, 2006 Share Posted December 31, 2006 thats one beast of a model keep up the good work Quote Link to comment Share on other sites More sharing options...
graham Posted December 31, 2006 Share Posted December 31, 2006 astonishing work very well done ;)what have you got going on in the background of the glasshouse kolpen looks like a crane :) Quote Link to comment Share on other sites More sharing options...
Kolpen Posted January 1, 2007 Author Share Posted January 1, 2007 Yes, it's a crane. The glasshouse is 1000m2 with everything you need as a modeltrucker. Roads, buildings, sand grave?, etc.... in 1/16th scale, for excavators, trucks, forklifts, dumpers and so on. All radio controlled. Really a cool project. In the beginnig of this year me and another member of this group, is going to start the farm part. With tractors and fieldwork. More photos and videos to come in near future! Anders Kolpen Denmark Quote Link to comment Share on other sites More sharing options...
ihatepoundland Posted January 1, 2007 Share Posted January 1, 2007 Out of interest, which tractor would win a tractor pull? Wonder if it is possible to work out the dbhp using a Newton meter or something? Quote Link to comment Share on other sites More sharing options...
Kolpen Posted January 1, 2007 Author Share Posted January 1, 2007 You mean drawbar hp between my two tractors 9420T & 7920? Sure it would be the 9420T! Imagine 4,5-5kg/10 pounds, tracked vehicle, make spin on no matter what surface. That tractor is incredible strong, compared to the 2WD 7920 tractor. The 7920 also make spin on no matter what surface because of a very strong gearunit. But with it's ~3kg and 2WD it can't pull too much. Next thing to the 7920 will be dual rear wheels as this will make it heavier, have a bigger contact to the ground and I can more or less kill the problem of the differential letting one wheel spin while another is stuck. Thanks for you interest! Anders Kolpen Quote Link to comment Share on other sites More sharing options...
Powerstarâ„¢ Posted January 1, 2007 Share Posted January 1, 2007 Yes, it's a crane. The glasshouse is 1000m2 with everything you need as a modeltrucker. Roads, buildings, sand grave?, etc.... in 1/16th scale, for excavators, trucks, forklifts, dumpers and so on. All radio controlled. Really a cool project. In the beginnig of this year me and another member of this group, is going to start the farm part. With tractors and fieldwork. More photos and videos to come in near future! Anders Kolpen Denmark That sounds like everyone on FTF's dream Any more pictures of this big layout Anders? Quote Link to comment Share on other sites More sharing options...
Kolpen Posted January 1, 2007 Author Share Posted January 1, 2007 Yes, I have a few... Not too good quality, but it shows some of the landscape. As you will see the crane is out of scale. At least I think so... Too bad about the rope hanging down Quote Link to comment Share on other sites More sharing options...
Mattias71 Posted January 1, 2007 Share Posted January 1, 2007 Anders! You are doing a great job indeed :o Its amazing! Quote Link to comment Share on other sites More sharing options...
Kris Posted January 1, 2007 Share Posted January 1, 2007 thats absolutely awesome were did you find all that space and them models are awesome Quote Link to comment Share on other sites More sharing options...
Kolpen Posted January 2, 2007 Author Share Posted January 2, 2007 @Mattias71 Thank you very much! thats absolutely awesome were did you find all that space and them models are awesome You mean the space inside the tractor or the space for the 'diorama'? Well, for the last part I got in contact with some R/C truckers and that way I found out about the greenhouse. Cool place that keeps getting more and more detailed. A lot of the people down there has their trucks and just drive around. But what's more interesting is the wheelloaders, excavators and mounted cranes on the trucks that all works perfect togehter. Anders Kolpen Quote Link to comment Share on other sites More sharing options...
TRACTERROR Posted January 2, 2007 Share Posted January 2, 2007 Amazing models ,I am working on 1/32 scale Rc John Deere self propelled (No 2 prototype) and a tractor puller at the moment ,can anyone suggest where I could get a diff small enough ? Quote Link to comment Share on other sites More sharing options...
Kolpen Posted January 2, 2007 Author Share Posted January 2, 2007 @TRACTERROR Sounds interesting!!! Do you by any chance have some pics to show? I did a little search for a small differential.... www.kleine-laster.de has some. But at 199? ... www.trino.de is planning SOMETHING about a differential for siku contr. tractors (keep checking his forum) www.modelltruck.de - you can get plenty of help here if you need information on where to get or how to make it yourself. Do a search for 'diff' and you will see some 1:24 trucks with homemade diffs (even with diff locks). /Anders Quote Link to comment Share on other sites More sharing options...
Kris Posted January 2, 2007 Share Posted January 2, 2007 thanks anders im going to take over the big greenhouses near me Quote Link to comment Share on other sites More sharing options...
MJB1 Posted January 2, 2007 Share Posted January 2, 2007 if any of us brits did anything like this we'd all accuse each other of having too much time on our hands , Anders your time seems well spent , the sets & the models really recreate the working environment we all want to be a part of in 1/32 & 1/16 land , well done , look forward to seeing more :) why are us brits so against the WTD \ Quote Link to comment Share on other sites More sharing options...
TRACTERROR Posted January 2, 2007 Share Posted January 2, 2007 Hi Kolpen ,thanks for the search bud ,much appreciated ,the first prototype is now living in Clitheroe Lancashire England with my best mate Paul Whitehead ,who gave me the idea to do it ,if I can pry it from his hands for a weekend I will photograph it and post or e-mail you some pics ,but the basics are as follows ,Paul purchased a Siku Control JD 6920s and I went to work splitting it down and discarding any unuseable parts to the spares box ,then I took a Britains 7500 forager,split this down and started to position the drive motor and the other components into the forager ,obviously a bit of cutting and re-inforcing was needed as was a bit of patience and a steady hand ,but hopefully I can get a few pics and show you the finished product and the internals ,as for No 2 it is a pile of bits just now until I get that perfect diff,I have found one on e-bay that might do ,its in an X-Mods Honda Civic,Cant complain if the part is from The Power Of Dreams (My favourite cars) but will keep you posted on the progress,thanks again,rgds,Kev Quote Link to comment Share on other sites More sharing options...
Kolpen Posted January 3, 2007 Author Share Posted January 3, 2007 @mjb1 Thank you very much! @Tracterror The rear diff from these cars should work too. Problem is, if I remember correct that they don't have a solid axle for the output. Nothing that can't be fixed though! Have you ever considered using a servo for drive motor? Instead of the SIKU contr. unit? For a forage harvester you would probably have the space to fit regular eletronics like, batterypack, receiver, servos etc. see this link for hacking a servo to be proportional in both direction, 360degr., with built in speed controller. http://66.249.93.104/translate_c?hl=en&u=http://www.electronicsplanet.ch/indservo.htm The better with 'regular' RC parts, is that you don't have to point at the model (SIKU infrared) and you will be able to control the machine more realistic. I look forward to see your creations! /Anders Quote Link to comment Share on other sites More sharing options...
New Holland Fan Posted January 3, 2007 Share Posted January 3, 2007 Great job there. Its amazing!! :o Quote Link to comment Share on other sites More sharing options...
Kolpen Posted January 31, 2007 Author Share Posted January 31, 2007 The hitch-frame is now mounted. Sideplates, top, stabilizer bar and mounts are ready. It is now totally alligned with tractor and everything sit perfect. As this is not just a model, but also a working vehicle, it needs to be made solid. I said before that the styrene material was a bit flexy, but okay for the time. As time has gone and I following the instructions from the drawings, the reinforced parts has made the whole thing VERY solid and stable. The 'bolts' is from a BRUDER Joskin trailer's wheelhubs Now I need to make the cylinders, liftarms and the servo to raise and lower. MORE TO COME Here is a short videoclip from the manufactures website; http://www.he-va.com/index.php?page=4&id=29&video=67 More news to the tractor. I installed a German precision motor in the tractor called Faulhaber. The god thing about this motor is: No noise Low RPM Extreme torque Low current cosumption My gearbox went down from 208:1 to 124:1 to deal with the lower RPM motor. Still it is able to pull much more than the previous regular motor. Really a smooth and quiet ride now :wink: Right now I use one digital servo for my rear 3 pt. hitch. The future (next 14 days) is to install two digital servos for the fronthitch and the steering. Thing is, that with a digtal servo I am able to program the speed and a lot of other thing from a computer. Slowing the speed to a minimum makes the tractor perform more realistic, like 'oil pressure' if you know what I mean. The high speed standart is a big problem for todays trucks, tractors etc. But good for aeroplanes and fast cars. Enjoy the pics. /Anders Quote Link to comment Share on other sites More sharing options...
Deere-est Posted February 1, 2007 Share Posted February 1, 2007 I almost laugh when I see this, in a good way. I am just blown away that someone has managed to do all this in such a small scale, it all looks like a real piece of machinery being designed, tested and made. You are a genius, I have said it before and I will keep saying it!! Quote Link to comment Share on other sites More sharing options...
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