B-52 GUNNER Posted March 31, 2008 Posted March 31, 2008 I hope this doesn't end up like the 1/32 Alpha Fighter build. We haven't seen any photos of further progress in a while. Update please. Quote
MechTech Posted April 1, 2008 Author Posted April 1, 2008 I'm still at work. I just got the servos in last week and I'm reworking the ramp. Both servos have been heavily modified like he first. I'll post pictures soon! - MT Quote
MechTech Posted April 6, 2008 Author Posted April 6, 2008 UPDATE 6 APRIL 08 Alright, first some updates, second an apology for my camera battery dying! I got two good shots. The first one is a motor controller (about two hours to build one night). I keep taking the leads from a battery pack and holding them up to completed assemblies and motors for testing. The problem is the wires keep breaking or I run out of hands to hold the whole thing together! One switch turns it on (LE blinking LED reminds me to turn it off, one switch temporarily engages power, and the one on the end switches polarity (forward/reverse). No more broken wires and I can observe the working of the whole thing better. Next I rebuilt two more servos like these: http://macrossworld.com/mwf/index.php?show...8403&st=500 (middle of page, 11 Nov update). It is a small gearcase with an N-20 motor (coins for comparison) stuck in place of the motor (also N-20 size) into the servo. This slows it down and increases the torque significantly. Here's a picture for comparison. The stock unit has a 2.5mm output shaft on it. The modified unit has a machined down 1mm shaft for the gear popped of the servo motor to fit into. The gearcase corners are also filed to contour the motor so it fits snug into the servo. Tops are soldered back together. I finished the servos, the new ramp sections (yes, new) and the brass parts that will make it all go. The cool part is that I now have three identical servos driving the ramp - all segments will fold up at the same rate. Hopefully my next post will have video! - MT Quote
MacrossMan Posted April 7, 2008 Posted April 7, 2008 UPDATE 6 APRIL 08 Alright, first some updates, second an apology for my camera battery dying! I got two good shots. The first one is a motor controller (about two hours to build one night). I keep taking the leads from a battery pack and holding them up to completed assemblies and motors for testing. The problem is the wires keep breaking or I run out of hands to hold the whole thing together! One switch turns it on (LE blinking LED reminds me to turn it off, one switch temporarily engages power, and the one on the end switches polarity (forward/reverse). No more broken wires and I can observe the working of the whole thing better. Next I rebuilt two more servos like these: http://macrossworld.com/mwf/index.php?show...8403&st=500 (middle of page, 11 Nov update). It is a small gearcase with an N-20 motor (coins for comparison) stuck in place of the motor (also N-20 size) into the servo. This slows it down and increases the torque significantly. Here's a picture for comparison. The stock unit has a 2.5mm output shaft on it. The modified unit has a machined down 1mm shaft for the gear popped of the servo motor to fit into. The gearcase corners are also filed to contour the motor so it fits snug into the servo. Tops are soldered back together. I finished the servos, the new ramp sections (yes, new) and the brass parts that will make it all go. The cool part is that I now have three identical servos driving the ramp - all segments will fold up at the same rate. Hopefully my next post will have video! - MT Holy smokes! I used to build R/C cars (1/10 scale buggies to be exact) and I have never seen servos that small! Insane! I've been out of it since 1994 and I imagine that technology has gotten a lot better, but that is still impressive. Looking forward to seeing this completed project. Quote
big F Posted April 11, 2008 Posted April 11, 2008 Holy smokes! I used to build R/C cars (1/10 scale buggies to be exact) and I have never seen servos that small! Insane! I've been out of it since 1994 and I imagine that technology has gotten a lot better, but that is still impressive. Looking forward to seeing this completed project. LOL and then some I stopped competing in 2000 and my stuff is antique now compared to the latest, back in 2000 it was cutting edge sponsored handouts. Quote
MechTech Posted April 13, 2008 Author Posted April 13, 2008 (edited) I used to be an assistant manager in a hobby shop, sell the stuff all day, blow half my paycheck there, and go home and build the same stuff! I can't believe how fast stuff is changing! Brushless motors, LiPo batteries - we used to dream about having that kind of stuff! The servos aren't really that small. There's much smaller around! The thinness and metal gears are what I needed...case in point: UPDATE 13 APRIL 08 ALL of the folding mechanisms are done! It works great! I'm not posting video until I skin the ramp and finish the end folding part - just in case . Here's some photos. I had to redo the frame to strengthen it. The servos are directly driving the ramp - I didn't want to do it this way. There's no room for a mechanical safety device, but I'll put some micro switches in to stop the ramp at the start and stop points. If it hangs up, there's no mechanical protection like on the end segment. But it works great! The servos are dual bearing so no sweat off there bushinged backs. Everything come apart including the servos from the assembly - just in case. The connectors on the servos will be covered over so no one will see them. Next came the wiring. It has to look real where exposed and be durable. The answer; use conduit (2mm micro styrene tube), cable armor springs and paper thin wires. All the light colored runs are wired electrical items.The lighting cables are wound up and masking taped to the frame until skinning the surface begins. Flex springs from an old Gundam kit, now really carrying electrical cables! One got over stretched . You can see the thin wire ribbon, armored springs and conduit. Yes, the best way to lay out the lighting wires was to use micro styrene tube and make my own "junction boxes" out of styrene squares (hole drilled in the middle and filled with colored 5 min epoxy). Folded up and in the stowed position (it will do this under power now) And the big deal with keeping it thin? Making the anime magic come to life! At the thickest point, it's 13mm thick. A real colossal giant like this would probably be very different! That's it for this time. Next comes the serrated end. I have to make it fold 180 degrees! After that, it's time to skin, wire it up and finish it off! - MT P.S. Sorry about the photo color, my camera hates flourescent lighting. Edited April 13, 2008 by MechTech Quote
big F Posted April 14, 2008 Posted April 14, 2008 I used to be an assistant manager in a hobby shop, sell the stuff all day, blow half my paycheck there, and go home and build the same stuff! LOL me too. I can remember blowing my weeks wages on one kit with my sponsors+staff discount it was cheap but I got the price back up by buying all the hop up parts for that car. Ahh those were the days. Great progress though unlike my project cant belive we have both been at so long now. Quote
drifand Posted April 20, 2008 Posted April 20, 2008 Great to see things back on track. Can't wait to see the ramp in action! Quote
MechTech Posted April 27, 2008 Author Posted April 27, 2008 (edited) Thanks for the kind words guys, I'm humbled. UPDATE 27 APR 08 WITH MOVIES One warning, we're limited to 500MB uploads so the movies are SHORT. I took movies in 5 second intervals. This is only the ramp in ATTACK MODE, not ASSAULT MODE (landing). The noise was amplified by the camera being on the table too, otherwise the servos are really quiet. Note the flap on the joint to allow room for opening up, it fits smooth and flush when the ramp is opened. These are just teasers until I finish skinning the ramp and painting it. You can't see all the panel lines yet in the photos until a good wash goes down. Ramp_Up.MPGRamp_Up_II.MPGRamp_Stowed_Back.MPG Going up... Ramp_Down.MPG Ramp_Locked_Down.MPG Going down... More photos of the ramp folded with all mechanical parts. All joints and even the tip "serrated edge" move automatically. That's it for now. Time to skin the rest of it and get the far end edges covered with the facade. - MT P.S. Something's up with the post and things are slightly out of order. - MT Edited April 27, 2008 by MechTech Quote
Hiriyu Posted April 27, 2008 Posted April 27, 2008 Absolutely fantastic, MT. I'm continually blown away by your project and your execution. Thanks much for your continued updates, I really do look forward to seeing them! Quote
neptunesurvey Posted April 28, 2008 Posted April 28, 2008 You are "The Man"! Ok, maybe the second one behind Moscato, but that is some awesome work. Quote
ce25254 Posted April 28, 2008 Posted April 28, 2008 Amazing, this is just great—I've been eagerly waiting to see it in action! Thanks for posting the videos. Quote
MechTech Posted April 29, 2008 Author Posted April 29, 2008 Thank you guys very much for all the compliments. After the bow section is done, it's all downhill from there! - MT Quote
MechTech Posted May 4, 2008 Author Posted May 4, 2008 UPDATE 4 MAY 08 So no one thought I just sat on my butt this weekend (OK, a lot at my workbench), here's some updates. I'm still paneling and engraving the ramp. There is still A LOT of work to do so what you see is all still very rough work. The pictures are kinda dark so the panels lines show up. Last week's pictures didn't show the engraved panel lines. Mid section (this week's work). Ramp sides so far... The mysterious humps; I put side and front lights on them (nothing worse than tripping down a GIANT ramp in the dark). The rest of the frame needing to be "clothed." The little bits and light connection are next after some surface clean up. That's it for now... - MT Quote
ce25254 Posted May 4, 2008 Posted May 4, 2008 (edited) It's like watching set construction photos of a live action movie as the production unfolds! I just made a pun. But I meant it... the progress is truly exciting. Edited May 4, 2008 by ce25254 Quote
neptunesurvey Posted May 11, 2008 Posted May 11, 2008 Coming along nicely. Will you be able to finish it by the end of this year? Quote
MechTech Posted May 13, 2008 Author Posted May 13, 2008 Thanks CE - very punny! I'm going to try! I keep having setbacks like the connector on my ramp breaking (who knew the wires would break in the spring tube and the connector). The good news is the ramp is all skinned and I just have to do the end sides and some flashing LED's for warning (nothing that big would move without a warning light/horn). Pictures hopefully coming soon... Quote
neptunesurvey Posted May 13, 2008 Posted May 13, 2008 Thanks CE - very punny! I'm going to try! I keep having setbacks like the connector on my ramp breaking (who knew the wires would break in the spring tube and the connector). The good news is the ramp is all skinned and I just have to do the end sides and some flashing LED's for warning (nothing that big would move without a warning light/horn). Pictures hopefully coming soon... Can't even trust the contractors. Quote
Hiriyu Posted May 14, 2008 Posted May 14, 2008 Can't even trust the contractors. They're probably the same guys who were hired to anchor the anti-grav motors on the Macross - "Yep, got 'em anchored down good. It's Miller Time!" j/k MT, great work as always Quote
big F Posted May 14, 2008 Posted May 14, 2008 They're probably the same guys who were hired to anchor the anti-grav motors on the Macross - "Yep, got 'em anchored down good. It's Miller Time!" j/k MT, great work as always LOL Friday afternoon jobs Quote
MechTech Posted May 19, 2008 Author Posted May 19, 2008 Friday afternoon...as a matter of fact... Thanks MilSpex! Tiny Update. I skinned and engraved the end ramp. Note the transparency. The first two segments are .020" plastic sheets; the end is .010 to keep it light. It was fun engraving that! Not too much, not too little. The rest of the week I spent installing a new stereo in my shop (after returning the first). Gotta have tunes man! That's it for now. - MT Quote
MechTech Posted May 25, 2008 Author Posted May 25, 2008 UPDATE 25 MAY 08 I FINALLY finished constructing the ramp component. It just needs to have the wiring harness put back on. I didn't bother with an overall top view because all the panels look the same on top. The sides (mosly complete). Side View of the folded ramp. 3/4 view showing it folded with top details (and some putty on the seems). Next job is just to wire it all in. - MT Quote
isamu_dyson Posted May 30, 2008 Posted May 30, 2008 impressive .. most impresssive it's a very very great work mechtech Quote
dizman Posted May 30, 2008 Posted May 30, 2008 Finally got the ramp done...... only took a month or more . Seriously though great work on the ramp! Quote
MechTech Posted June 1, 2008 Author Posted June 1, 2008 Thanks guys for the compliments! Yes, it did take a long time! UPDATE 1 June 08 I wasn't going to detail the underside and I thought, "well, I've come this far..." Here's some photos: Not shown are the two micro switches underneath to cut power to the motors when the ramp folds open or closes. Without them the servos could crush the whole thing when opening or closing (that's bad!). The engraving doesn't show up well, but it's there, ALL over the place! I'm tired of engraving for a while! Enjoy the photos. - MT Quote
ce25254 Posted June 3, 2008 Posted June 3, 2008 So presumably this beautiful ramp will be protected by a strong top and bottom hull that can perform the Daedalus Attack on some other R/C ship, right? What is the material you plan to use for the hull plating? () I can't wait to see this slice right through somebody's battleship. Quote
MechTech Posted June 9, 2008 Author Posted June 9, 2008 Yep. If you look WAYYyyy backin this thread you ight be able to see the lower hull. It might slice through a balsa hull, any more than that I'd be afraid to scratch the new paint on my ship WHEN it's ready! I won't be making any updates until I can source some mini, momentary DPDT rocker switches for the controlls. I'll need quite a few. There's the ramp in-out, ramp fold-unfold - - two sections, main hatch, two internal cranes (4 total switches), and the interior doors. - MT Quote
do not disturb Posted June 9, 2008 Posted June 9, 2008 ha, haven't checked my favorite thread in ages. so yeah, the finished model will be revealed by macross's 50th anniversary right? Quote
MechTech Posted July 10, 2008 Author Posted July 10, 2008 UPDATE 10 JULY 2008 With the ramp (and Sports Den - http://macrossworld.com/mwf/index.php?show...&start=940) out of the way, it's back to work on the Daedalus! Here's the progress pictures on the main ramp. [attach ment=55579:Bow_Hatch_Side.JPG] Screw drive actuator from an old floppy drive - great mechanical safety on it. The angles are made from 1/8" fiberglass sheet, similar to high strength circuit boards. Made an indestructible "Clod Buster" chassis from it once (carbon fiber was just coming of age). That's it for now. - MT Quote
Gabe Q Posted July 11, 2008 Posted July 11, 2008 Awesome! You're doing a heck of a job. Your work looks so precise. I wish I could see it in person. Quote
B-52 GUNNER Posted July 11, 2008 Posted July 11, 2008 As you add items to the structure do you check how it is resting in the water? The more you add the more water it will displace. Scot Quote
neptunesurvey Posted July 12, 2008 Posted July 12, 2008 Progressing nicely. When do you think you will have video of the completed ramp and hatch opening? Quote
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