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Everything posted by Scale-Master
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Comfort Models, Ya Have One?
Scale-Master replied to martinfan5's topic in General Automotive Talk (Trucks and Cars)
Yeah, at least Seven... -
Got the belts and alternator installed.
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Thanks guys! It's not just the bolt heads, I'm machining the entire bolts. I forgot to take pictures when I scratch-built the alternator last year. I just got around to painting and assembling it. Still a few details to add and paint… Mostly aluminum with some brass and a little styrene.
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The water pump pulley was made last year during the initial conversion to left hand drive for an article in Scale Auto magazine. I milled the mounting bolt for that pulley today and assembled all the pulleys. The belt will go on after this assembly is mounted to the block.
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Thanks guys. Yes Gary, I will pass that on. Crank drive cog…
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Oil pump cog… It was also treated to acid etching.
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I machined the bolts and washers and installed them. They spin free so I can index them when the belt is installed. I also made the idler pulley and some other hardware. Still more to add…
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Thanks guys! Bill, that Seven you mentioned is the one that I started with. It is the only one that cam with those cool cast metal Minilites. I'd really like to snag another one; like I need one more Seven... The cam cogs were milled to fit the teeth on the belt. Fresh off the mill. After acid etching.
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The timing belt had rotted and disintegrated (not that I was going to use it…) so I milled a new one from a black zip-tie. Learning from the last time I was able to make this one even thinner so it will wrap around the cogs easier. I made this jig for the last Super Seven I built to preload a memory into the belt. It will stay in it for a few days in direct sunlight when possible, (instead of a week like last time). It isn't critical for the belt to hug the jig; the teeth will engage the cogs and lock it in place on the model.
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Thanks John. Dipstick. All brass. The stripped down engine block. Since I relocated the alternator to the other side I'll have to address the area it used to mount to. Painted dipstick, dry fitted to partially reworked and repainted engine block.
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I don't know how I missed this, but wow Pete. Great work!
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To limit the size and therefore amount of debris that could get through those holes I made rock screens from some fine steel hydraulic filter material. Holes were drilled through the screens and then correlating ones into the fenders. Small clamps to spread the load were made from 0.004 thick sheet plastic. The screen assemblies are just sitting loose next to their final placement. Mounting hardware will be made later…
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One of the fenders was slightly damaged during the tear down. (In fact I found several pieces that were broken or cracked at the screw-together points when they were taken apart; probably due to the tightness of the original assembling.) I also thought they would look more accurate if all the mounting holes were the same. Straight from the kit two "holes" on each fender are actually slots for ease of assembly. I filled them in and redrilled them while fixing the broken piece. I also filled in the holes for the side marker lights and the rather obstinate ejection marks on the underside. I added seven evenly spaced but different sized holes (larger to smaller front to rear) for letting air out at higher speeds.
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The front control arms are cast in Zamac as the exact same parts for both sides so the sway bar receiver (on the upper arm) ends up being different from side to side instead of mirror imaged. So I filled them in and reshaped and drilled them to accept the sway bar. Also the shocks snap onto the lower arms leaving the bottom of the shock eye open, not realistic but easy to assemble. To make it so I can install closed loop shock eyes I cut out the mount from the A-arm and drilled a hole to use hardware like the real cars. I added a brass section to beef up the parts before cut out the shock mount, and to make it look like the beefier optional part. Before: After:
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Wow, that brings back some memories. I haven't seen that kit for a long time. And I built the blue one for Revell that's in the box art photos.
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This is the steering rack from brass tube and sheet stock. The inner workings of it are made of rod and tubing. Painted and assembled. The tie rod halves are pinned so the ends can pivot when the rack is slid side to side. I made the bellows by machining a master and casting them with rubber-like resin that was dyed black.
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1/16 Scale Army Vega Funny Car - Finished 10/14/2018
Scale-Master replied to Mooneyzs's topic in WIP: Drag Racing Models
Nice to see this one on the bench and potentially growing. -
Thanks John. I milled the oil cap for it from aluminum; I'll make the decals for that later. This subassembly will be bagged until needed.
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I machined the bolts, washers and fittings and installed them by press fit. (Some of them may have to come out later to mount some brackets.)
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Thanks John. The lettering was repainted after the final dark metallic gray color was applied. (The texture looks a lot coarser in the photos than it actually is.)
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I masked off the FORD lettering and filed off the "bolt detail" and drilled for the new hardware then textured the cam cover.
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These four corners are ready to be bagged until final assembly of the car.
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No, it is very nasty when used on aluminum. It cuts brass slowly, about 55 hours to burn through 0.010 sheet. But on aluminum it boils and smokes and creates enough heat to burn skin in seconds. Part of the color change is the char left behind. Parts need to be made larger to compensate for the material that gets burned away too. The stuff will burn through concrete as well. Tools and containers need to be plastic. Common sense is a must to work with this stuff safely. And thanks!
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And the finished assembled rear hubs, studs and rotors. No paint, just treated/raw materials.
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These are the raw machined parts for the rear hubs. Being similar to the fronts sped up the process of making them.