1930s dumptruck - Nylint

[frizzen]

I'd ordered a WPL B1, "1/16 scale" M35 truck kit. It's small. Quick search and sloppy measurement, it appears to be 1/17.5 or 1/18 scale, and looks like a minitruck next to the cars.

https://i.imgur.com/3QaH2znh.jpg
Looked awesome, scaled wrong. Might as well make it weird...
Pic i can't find.

I had gotten this 'Nylint Classics' 'metal muscle' truck from my grandma for a birthday some time in the 1990s. They had atleast 5 trucks in the series: Dump, Stakebed, Tow, Fire pumper, Fire ladder.

I shortened up the wheelbase a little, trimmed the frame length some.
Then i put the fixed end of the leafsprings at the outside, and went spring-under axle. Trimmed the bumper off the rear crossmember, and pulled the trans out for now.
https://i.imgur.com/QZHcHknh.jpg

Then some internal body trimming, and a little chassis crossmember clearancing. Which got me to this point.
https://i.imgur.com/SetXScOh.jpg

I think this might just work...

[Hostile]

Haha fantastic work frizz. I ordered 2 of those but seller was a scammer. Got my money back thanks to ebay. Glad i didnt get them now but its perfect for that truck!

[ittigger]

Looks great!

[ramjetexpress]

cool

[frizzen]

As a 1/18 truck, the B1 is pretty good, but not stellar. As a 1/16 that will play around with 1/14, 1/12 scale...it's a donor.

There are no bearings, there are no differentials. All gears are plastic, looks probably nylon but i don't know. Driveshafts are plastic and the yokes don't inspire confidence. It's very toygrade. It's not a rock crawler with bulletproof drivetrain. These aren't tamiya semis you can let a kid ride on the trailer. But it can give cheap axles to get smaller vehicles moving. The 3D printer guys are going crazy and cranking out new parts weekly.

Anyway, i've always been impressed with the old trucks with how tiny of running gear they had, and just how capible they were. Plus this was the dumptruck i actually wanted to build first, the Structo was made since it was cool and fit the donor axles. I'm not planning on this being a primary dumptruck, but more of the company owners 'Restored Toy' that helped build the company and the owner takes out occasionally to do trade shows, events, and light jobs for fun in nice weather.

I need to make some more leaf springs, i've got single in front, doubled in back. It's still a little spongier than i'd like. I don't need to aim for huge capacity, the trucks only going to carry maybe 1-3 dragline scoops.

There's also a guy on the 'other' board building one of these WPL trucks into a (tamiya lunchbox) Dodge Tradesman, which i think would be fun to do as a 70s 'Vanning' custom. It's a decent little donor if you keep it reasonable.

[ittigger]

I get what you're saying. Still looks pretty dang cool.

[skeeter]

I haven't had a chance to get mine together yet. I'm sad to hear they are a lil small scale wise. I am however glad you were able to put er to good use by thinking outside the box, as you're so good at doing. That lil dumper looks absolutely AMAZING!

[frizzen]

Thanks everybody, i'm glad you're liking the way this is going as much as i am!

Mild lift over stock and offroad tires. It will need some foams in the tires.
https://i.imgur.com/RuseT1eh.jpg

Dueling dumptrucks
https://i.imgur.com/3i4Pcckh.jpg

Scale comparison. 1/15 scooby, 1/14 vw
https://i.imgur.com/V5WXiQdh.jpg

I know 4wd wasn't much of a common thing until after WW2, but there were some aftermarket companies doing it, so i'm not sure which way i'll go.

[ittigger]

Looks like it fits right in. :)

[frizzen]

Just the under body
https://i.imgur.com/hhE7Swrh.jpg

Body & chassis
https://i.imgur.com/lqqeG2hh.jpg

Some pics for a guy on the other board who offered to help with designing some crossmembers to print

[frizzen]

Been working with ''igotit" over on Scale...

https://i.imgur.com/F0Is5aGh.jpg
Mk. 1, Vertical servo crossmember.

Still needs work. Working on Mk.2

https://farm1.staticflickr.com/963/41013923774_6ac2ce6366_b.jpg

[frizzen]

Mk 2 and mangled mk1
https://i.imgur.com/wBOOrAih.jpg

Servo height sitting on top of mount is pretty good, doesn't need the mount slot, i couldn't dig out the support matrix anyway. Dimentions and everything above clear the body great.

I quickly realized when i spec flat bottom on mk 2, i forgot about servo arm swing, and diff pumpkin clearance. I'll get it pulled back out and send pics and cutouts.

I made servo drag link out of copper again, ran to right tire which clears better and to minimize any bumpsteer through my "massive articulation". This is temporary, unless it works.

[Wombii]

Very nice work on the servo mount design. Looking forward to see the final iteration. Do you have any plans for building something with the new WPL 6x6 chassis?

[frizzen]

I'm just glad that I'm getting help from igotit over on scale, and my friend with the printer.

I don't have plans yet. I've got several things already in work i'd like to finish first. If i do get the 6x6, it's probably going to be an M35A2 as scale and detailed as i could make it. It's small to play with Tamiya semis, but looks really cool.


----
I quickly realized when i spec flat bottom on mk 2, i forgot about servo arm swing, and diff pumpkin clearance.

https://i.imgur.com/LxNMpChh.jpg

https://i.imgur.com/wFwOYRch.jpg

https://i.imgur.com/k29qdS6h.jpg

I made servo drag link out of 0.043" copper again, ran to right knuckle which clears better and to minimize any bumpsteer through my "massive articulation".
You know the old saying... This is temporary, unless it works

--

Immature hotrodder wanted to see a Highboy version.
https://i.imgur.com/mqt1EKAh.jpg

[skeeter]

That looks awesome, Frizzy!

[frizzen]

I figured out a mid body mount using a plastic strip and screw into an existing rivet hole. So the frame sockets onto the bumper extention, lays into the body watching crossmember location, then raise the plastic strip and rotate it across frame. Good enough.

Let's run some vintage equipment

https://i.imgur.com/SD8ze1Lh.jpg

https://i.imgur.com/xhzDin4h.jpg

Yes it pulled the Unit Crane. This one time. No it wasn't safe. It took ALL the truck had to pull the crane, motor smells hot. Only my 4wd Structo will be used to move the little Unit.

https://i.imgur.com/7J6qhV2h.jpg

[frizzen]

Moving high volume payload isn't exactly the priority with this truck.

https://i.imgur.com/VIOV4LWh.jpg

It takes a little more Accuracy hitting the bed with a load. Plus no cab-protector at all.

https://i.imgur.com/cdahEsJh.jpg

Chrome will Always get ya home, and i ain't kidding!

I'm kinda going for a Truck that started the business when new, they moved on, it came out of storage for a restoration, and sometimes gets lightly used more as a retired toy than a working truck

Due to the small bed and soft springs, it won't really 'Ride like a Dumptruck' and the little Figrelli / Actuonix bed actuator i got that didn't work for the bigger truck seems like it can pretty easily handle things on here.

Figreli L12-30-100-12S


Its able to dump a 12 oz beverage can. I think that should be about right for a load of dirt or crumb rubber. It doesn't have a tailgate so it's not like it'll get filled to Struck or Heaped.

I'll probably still add to the suspension limit. A little over a 12oz can in the bed is about where its either still up, or squats the shackles to the stop. If i upgrade, i'll probably just try to break some toy spring-motors to make some extra leafs.

https://i.imgur.com/PWsZWl1h.jpg

Full up dump.

[Tgrzes]

Sweet looking!

[frizzen]

Thank you tgrzes!

Somewhere along the way this also got a leafspring upgrade with aluminum drops & shackles, and added more leafs cut from stock slider springs.
I also bumped it up to a newer gearbox with 180 motor.

[jerry56]

WoooooHoooo a completely working dump truck....!!!!!
looks pretty good now lets get that Nylint working lol :D

[frizzen]

Oh man... "Completely working" ? I just said now it can drive, steer, and dump.

Next you'll say i should still make a 2/3A battery pack, get an Rx and 2 Esc in there. Probably do a little bench seat interior. Maybe do some headlights and taillights.

Then you'll probably even reccomend a better motor over the 'Nothing-Special' 180 upgrade i already put in there. Something like:
https://www.professormotor.com/product-p/nsr3015.htm

[jerry56]

:bounce: Hey that's a great idea..!!!!
good motor by the way you have excellent taste :D

[frizzen]

I heard it was a good motor, over on another site a really talented builder suggested that one.

[jerry56]

I used a 180 can motor like that in My Bruder Ram a Ninco NC2 they are out of production now the one you mentioned is one of the replacements. It's not super fast but it drives my Ram pick-up and pulls a trailer with my D5 on it and it weighs about 5 lbs and I'm using the same WPL gearbox

[frizzen]

Sweet, that sounds like it'll be more than plenty of motor for this little truck. It should atleast get me up toward the axle-snapping and upgrading to metal diff housings stage.

What size esc are you running for it?

One should get me through this truck, and sounds like probably have enough for powering the Michigan Crane carrier.

[jerry56]

It should be ok for that small a truck
I'm thinking the crane carrier is going to need more than a 180 can motor
I used the plastic axle housing with metal innards and the cheap 30a esc
https://www.aliexpress.com/item/32951818551.html?spm=a2g0o.order_list.0.0.21ef1802 dWOPRQ

[frizzen]

This truck is pretty light, only cab & bed are steel. (Toy safety in the 90s ment less of the rusty & jagged steel i seem to like.)

Realistically I'd really been thinking more like one of the 370 motor gearbox for the crane carrier, or adapting something that's gonna be way WAY too big...perfect.

Plus a guy upgrading a couple of WPL rigs to Do Work might also unlock a couple of 'Bonus Trucks'...

[jerry56]

I've down loaded a dual 370 mount for a WPL and a 550.. I want to experiment with them

[skeeter]

https://i.imgur.com/PWsZWl1h.jpg


Man that lil truck looks SHARP!

[frizzen]

Thanks skeeter! I'm really happy with how it's coming along.

Bench seat, not sure about adding lights.

I'd been kinda looking at some of the Steelie or Spoke style wheels, but none quite do it for me. The Jeep or Toyota FJ aren't too far off

If a guy builds a dumptruck, it's kinda nice if the bed actuator motor is set up so ya can disconnect the Dump from ESC, plug in a battery pack and it drive the bed up for cab clearance.

[frizzen]

Ya ever take a model to an rc meet hoping to drive around on some roads, and move some crumb rubber?
...then after you've been over there a while, realize at some point you had borrowed the Rx and Escs to put in something else. Yep. Really smooth.

I've been staring at the truck for years, trying to figure out what it is. Now i'm kinda leaning a little more 1926-32 instead of 1930s?

Ford AA
Mack BB / BC / BF / BG / BJ / BL
REO FA

From what i'm seeing, it's likely in the range of 1 ton to 1-1/2 ton payload, but could possibly be up to 8 tons?

[jerry56]

I think it needs smaller tires and more "period" looking wheels...
check your email.....

[frizzen]

Yeah jerry i know those wheels aren't very period, but they fit the lug pattern and the tire shop was willing to mount tires on them. It kept the diffs from dragging the ground.

I know you've mentioned WPL and Lego tires. I'm assumung your Street tread is Lego 62.4x20s, with Offroad tread being WPL sized?

I don't think the attachments came through correctly with that email?

[jerry56]

Yeah the Lego's are my "street tire and the WPL "rock tire" (it's what they call it) is the off road, they are smaller and narrower than what you have on there now.
I'll check that email...

[frizzen]

https://imgur.com/RUfU6Csh.jpg

Trying out something Old, or New. Nice.
I need to lower it more. It's already Spring-Under. Going to need to stiffen the leafs, longer eyes, or add a leaf. Probably do some lowering blocks also.

But why are split-rims only a vintage thing?
https://bangshift.com/general-news/videos/look-at-and-discussion-of-split-rims-and-old-truck-wheel-mounting/

My friend printed 2 Single wheels, then nuked the hot section of his printer trying to print a pair of dually rims. Turns out this truck can only run singles.

[jerry56]

Looks a lot better....just need a little paint green and black....
The WPL rock tires and a little smaller if you need to go that route....
I double up on the WPL springs and put the little plastic "helper" springs on...
Worked in a garage as a kid... NEVER put air in a split rim unless it's in a cage.... If it does blow off you'll survive but you'll need clean clothes because it sounds like a bomb going off...right in your face

[frizzen]

Thanks, I'm pretty happy with wheel size now. Fenders aren't as stuffed, and should be a lot easier to keep from rubbing with suspension travel.

Yeah, i know the split-rim wheels i work around have something like a 15psi (temperature-adjusted) window where you can change nitrogen pressure while it's installed on axle. If they're out of range on the chart, gotta vent it, pull the valve core, and send it out for overhaul.

Green & Black might work. I'm not real sure on a color plan

[frizzen]

https://imgur.com/zSHtRNRh.jpg

https://imgur.com/N3M8LVhh.jpg

To help lower the truck even more and bring up the spring rate, the spring eyes were stretched farther apart at frame attach points. One of the cheap wpl B first gen axle halves has broken, and the plastic spring spacers are falling apart. I should probably do some lowering blocks.

Picked up the professor motor tuned 180 motor jerry suggested. Nsr 3015 King balanced monor 38,500 rpm 310g-cm torque. Their picker didn't seem to like my order-comments, or maybe they didn't feel good in their skills of an artist to Draw a Dragon?

That jungle-website finally decided (after a couple tries) i could get some parts Delivered. So this gets (2each) 30a esc, and 6ch rx.

Current Goal: have this ready to run, so it can just sit outside in the big car for the Toy Truck Show when i find out the "rc toy trucking" demo thing actually isn't *THIS* group, and i that can't play with them...
Maybe try to terrorize some hallways anyway, get kicked out of the hotel.

[jerry56]

Those wheels look a little more "period" ... and lowering it would help the look too I think those shackles make it sit up pretty high
I found these the other day...
https://www.aliexpress.us/item/3256805169863257.html?gatewayAdapt=glo2usa
https://www.aliexpress.us/item/3256805555207612.html?gatewayAdapt=glo2usa

I think I might order one or two just to have on hand they look "handy"

[frizzen]

I agree, a shackle delete would be the easy way to lower the truck.

It should be fun watching the modern Hydro equipment trying to load crumb rubber into my truck. Maybe 1-2 scoops...

Nice looking gearbox, i'm sure you'll find some really cool uses for that.

[jerry56]

I know right! I like those 180 can motors...
Not sure what I'll do with them though, I want to do a Bruder Gator and some other small stuff
I also got a couple of these
https://www.aliexpress.us/item/3256805399043660.html?spm=a2g0o.order_list.order_l ist_main.58.21ef1802U6Jvh0&gatewayAdapt=glo2usa

Might work in the gator or maybe the Bruder 906 loader... who knows...

[frizzen]

That's a cool transaxle part too.
I haven't seen the Bruder gator yet. I'd been thinking if i started messing with converting my Ertl 'deere gator' that i'd probably just do the rear axle as a piece of C-channel holding a pair of n20 gearmotors. Should be enough to drive around the farm or construction sites.
I've also wondered about the "CXD D12" (1/16 scale version of "wpl D12" Kei truck) as a possible donor for small projects

Since i'm more thinking about Old Trucks in this thread, got any ideas about possible donors close to either a 1928 or 1934 Diamond-T truck cab? (Very distant project ideas)

[jerry56]

I've been kind of watching for something like that too..
I've seen some older Buddy L's but they are either super rough, REALLY rough or way to expensive.
If they are missing parts like the grill, or cab, or headlight buckets good luck finding them
I have found STL files for older trucks like that, most would have to be scaled up though. 3D printed would be a lot of work to finish...

[frizzen]

I kinda guessed that there probably wasn't much close to those in a scale that fits with RC Trucking. It ceriainly wasn't a common brand...

Sanding 3D printed Curvy Fenders does sound like a whole lot of fun.
I'd thought about possibly using the front of one of these Nylints to make something 'kinda close' to the 1928. Or parts of a King hauler might be a good start toward the 1934 cab.
-
There were atleast 3 trucks with coachbuilt beds, to carry some Special cars.
I've heard there was a Ford AA i still haven't found pics of, the 1928-ish Diamond T has apparently been lost to history somewhere, the 1934 Diamond T was found, restored, and now lives with one of the cars in the race garage / museum.

[frizzen]

Anyway,

https://imgur.com/LVY5hYeh.jpg
What's that?
https://imgur.com/ywuXn7Hh.jpg

https://imgur.com/KQmPRMNh.jpg

https://imgur.com/tDx3Sj9h.jpg

I gotta say the Coal & Gravel truck did pretty well.

Get loaded outta your mind
https://youtu.be/6nnqXvyZ4yI

Since i don't have a flat dumpbody with a tailboard, I learned that the bed will leave a roll of material at the transition.
I can't complain about how she did in the crumb rubber. I think it looked and performed as expected!

Needs wiring dressed, battery connector upgraded to Deans, antenna holders installed, esc switch mounted, glass & interior reinstalled...

----

Between some Dumptruck and Loader threads, I got to wondering what size is a scaled "Yard" of material.
Thought it might be fun to eventually make a Yard Scoop, so 3 foot cube, 36"
1/12 cube 3"
1/14 cube 2.571"
1/16 cube 2.250"