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Truck Building Tech Covers mechanical and electrical components for truck modeling |
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#1
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Replacement parts for Carson STN-L3 trailer...
Hokay guys...
Any of you Carson STN-L3 owners know that the plastic u-bolts for attaching the axles to the suspension arms are crap, right? Well, silly woofie went to go replace 'em with 2-56, 4-40 or 2.5mm threaded rod... ... and silly woofie let the wee rectangular saddle-pieces that the u-bolts go thru fall out of his pocket. Now he has to try to replace the 'saddles'. I've e-mail'd Carson Germany, Tamiya Canada, and even PMD. Has anyone duplicated these pieces in metal, or know of substitutes Woofie could buy? I ~could~ use the pair I still have to make a mold and cast some in epoxy, but I'd rather have stronger ones that would hold up to a metal u-bolt. I'm thinking of using perforated metal sheet as used in microwave windows and such... but that's a sloppy make-do... Anyone knowing of replacements, please et me know. I need the 12 rectangular pieces (mounted in pairs) & u-bolts (made out of 2.5mm rod w/ threaded ends if possible) and can supply the originals if someone is willing to make replacements for me. I can make the bolkts myself, would just have to source some rod, and a 2.5mm die (got 3mm and up already) http://www.tamiyausa.com/pdf/manuals/907060ml.pdf (step #8) WhiteWolf |
#2
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Re: Replacement parts for Carson STN-L3 trailer...
If you get stuck PM me, I think I can make those for you, just need the u bolt size and the axle dia. and also the size of the square section that they sit on, on the trailing arm.
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#3
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Re: Replacement parts for Carson STN-L3 trailer...
Thanks Paul...
I could send one of my pair of rectangular 'saddle' pieces so you could make 'em, then you'd have 'em if anyone else wants to replace 'em# As for measurements: (referencing assembly sequence #8, seen in the afore-mentioned pdf file)
I'll also let you all know how my inquiries to the various suppliers go... in case you want/need to do the same at some point. WhiteWolf PS: Anyone have a good mechanism for remote-activation of the ramps? I've seen various ones. This one uses a worm gear on the ramp hinge (yea, Bruder, but same idea!) I've also seen where the actuator is a servo-lever... Opinions? And ~NO~ hydraulics! https://www.youtube.com/watch?v=ZCLcxScctV0 |
#4
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Re: Replacement parts for Carson STN-L3 trailer...
You thought of these not sure but I think they could work
http://www.cti-modellbau.de/CTI-Hubzylinder/
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Daniel |
#5
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Re: Replacement parts for Carson STN-L3 trailer...
Hmmm,
Electric linear actuators. Interesting idea, but two problems: speed of actuation, and throw. Speed is fixed unless you use one of the delay-boards, and throw is ~fixed~. Firgelli makes similar ones, and they are L12-R unit is R/C PnP: http://store.firgelli.com/L12_R_Line...ol_p/l12-r.htm Prices run $70 from Firgelli US, $100 at Robotshop.ca w/o Customs, plus 13% tax. Then in looking for Firgelli's site again, found their other Canadian distributor, Phidgits.com (more options? not really: all too big) Oh, and the CTI ones are all 12v, the German model standard. That blows that idea away, as I'd hoped to stay on 7.2v-8.4v. packs. The Firgelli L12-R 210:1 moves at 5mm/s, 30mm shortest throw; that's 6 seconds to 'actuate' - a tad fast (but that could be adjusted with a board). Don't think I can use 30mm of throw though, but the Euro ones might be slow and short enough. I need to see how much throw I actually need first, and ~then~ see if an actuator or servo (or two) will do the deed. I can have them paired/linked pushing both sides - double the torque. Then I can slow the beasts down with a delay-board. I should also consider two other ways to have the ramps move slowly: a worm-gear drive, as shown on the Bruder in the link I posted above; then there is Peter Müllers' ramp-actuator 'kit' on his Faun SLT 50-2 Elefant trailer. It uses two motors to push the crank-arm, the worm-gear is mounted inside. I wonder if a similar one could be made to fit in the Goldhofer. I may have to play about with some styrene scrap and Tamiya toy gearboxes - they have cheap wormgears. Hmm, if I can prototype one in styrene, someone could replicate it in metal and make some dinero selling it to Carson's customers... http://www.sonderfahrzeug-modellbau....ges/rampe1.jpg WhiteWolf Last edited by WhiteWolf McBride; 10-12-2014 at 06:06 AM. |
#6
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Re: Replacement parts for Carson STN-L3 trailer...
I just saw the smaller PQ-12 units, 20mm throw (even has limit-switches!) at $65 - they might do the trick.
Then I thought, mount 'em vertically, and you have remote Trailer legs! Not cheap though, at $65 each... (the Tamiya kit is $114 MSRP, and includes the 5th wheel control) WhiteWolf... ~ need sleep... ~ |
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