- Joined
- Jan 3, 2013
- Messages
- 8
I found this website in the hopes of learning more about machining and it has not disappointed me. I have a Speedway 7X12 lathe and Harbor Freight Mini mill that I'm learning to use. Have been a model railroader since 4th grade and always built models, so when I stumbled across larger scale RC construction machines, it was a natural fit for me. Anyway, if you have an interest in such things I recommend www.rctruckandconstruction.com. There are many machinists on the forum and excellent models.
Having grown up with IH construction equipment, I chose their 1970s, 50 ton, 4-wheel drive dump truck as a model to build. I'm using purchased axles (modified), 3-speed transmission (also modified), and hydraulic pump, but am building the frame, suspension, cab and body, and hydraulic cylinders. It has been an interesting build, having to learn use of the lathe and mill as I go along.
This is the prototype 350 Payhauler
The frame rails are modified aluminum c-channel.
General layout of the frame and axles.
The rear rear spring and hydraulic cylinder brackets
Rear spring brackets mounted.
Rear springs-Main & Overload.
Modified axle housing
Rear axle & springs.
1st Wheel completed
Trans input shaft & pinion.
Transmission modified & mounted.
Rear driveline
Front Spring mounted.
Front axle & wheels.
Front Axle & springs.
Chassis
Milling fuel tank brackets.
Fuel tanks & brackets.
Cab & Chassis ![20 Cab & Chassis.JPG 20 Cab & Chassis.JPG](https://www.hobby-machinist.com/data/attachments/17/17269-b30115706de18d8243dfd62302aed2c6.jpg)
Cab & mirror mount
![21 Cab Railings & Steps.JPG 21 Cab Railings & Steps.JPG](https://www.hobby-machinist.com/data/attachments/17/17271-8bda7b569a1971f4f19e2186016be755.jpg)
![21 Cab Railings & Steps.JPG 21 Cab Railings & Steps.JPG](https://www.hobby-machinist.com/data/attachments/17/17271-8bda7b569a1971f4f19e2186016be755.jpg)
Having grown up with IH construction equipment, I chose their 1970s, 50 ton, 4-wheel drive dump truck as a model to build. I'm using purchased axles (modified), 3-speed transmission (also modified), and hydraulic pump, but am building the frame, suspension, cab and body, and hydraulic cylinders. It has been an interesting build, having to learn use of the lathe and mill as I go along.
This is the prototype 350 Payhauler
![00 Payhauler 350C image.jpg 00 Payhauler 350C image.jpg](https://www.hobby-machinist.com/data/attachments/17/17250-b3cf073b0743547b8b455682912d8d76.jpg)
![01 Frame Rails.JPG 01 Frame Rails.JPG](https://www.hobby-machinist.com/data/attachments/17/17251-3b3d15b466307f02042db006021ff161.jpg)
![03 Frame & Axles.JPG 03 Frame & Axles.JPG](https://www.hobby-machinist.com/data/attachments/17/17252-96cce3a47ca5cd41208787217ae8f390.jpg)
![04 Rear Spring Brkt & Hyd Cyl Mount.JPG 04 Rear Spring Brkt & Hyd Cyl Mount.JPG](https://www.hobby-machinist.com/data/attachments/17/17254-7f7e6053a2cdc1b50801284bc19af710.jpg)
![05 Frame Rear Axle Brkts.JPG 05 Frame Rear Axle Brkts.JPG](https://www.hobby-machinist.com/data/attachments/17/17255-f1ec4582a86a7e0e5801d1e297d8c62c.jpg)
![06 Rear Springs - Main & Overload.JPG 06 Rear Springs - Main & Overload.JPG](https://www.hobby-machinist.com/data/attachments/17/17257-41ea168507e6fb600257730d5cf20de9.jpg)
![07 Rear Axle Modifications.JPG 07 Rear Axle Modifications.JPG](https://www.hobby-machinist.com/data/attachments/17/17256-105a39d2e908b79c4ef7e2d520af2b1b.jpg)
![09 Rear Axle & Springs.JPG 09 Rear Axle & Springs.JPG](https://www.hobby-machinist.com/data/attachments/17/17258-d951b573db22e2e30e2e1b628432afaa.jpg)
![10 First Wheel.JPG 10 First Wheel.JPG](https://www.hobby-machinist.com/data/attachments/17/17259-7cd43b1e6010a587bead12896c03a3ca.jpg)
![11 Trans Pinion Shaft - Parts.JPG 11 Trans Pinion Shaft - Parts.JPG](https://www.hobby-machinist.com/data/attachments/17/17260-90e8d145b3a038dd68886e79bee6be24.jpg)
![12 Trans Case Modified for Pinion Shaft.JPG 12 Trans Case Modified for Pinion Shaft.JPG](https://www.hobby-machinist.com/data/attachments/17/17261-8ea7924f1ec1e694712eb6ae00e6e06b.jpg)
![13 Rear Driveline.JPG 13 Rear Driveline.JPG](https://www.hobby-machinist.com/data/attachments/17/17262-bb653cf066686c76c0dd262ff72f26e3.jpg)
![14 Front Spring Mounting.JPG 14 Front Spring Mounting.JPG](https://www.hobby-machinist.com/data/attachments/17/17263-7e2a808d6e500be0269a65b218022288.jpg)
![16 Front axle & Wheels.JPG 16 Front axle & Wheels.JPG](https://www.hobby-machinist.com/data/attachments/17/17264-4a3485402aca73960f393bad589c467e.jpg)
![17 Front Axle & Springs.JPG 17 Front Axle & Springs.JPG](https://www.hobby-machinist.com/data/attachments/17/17265-1c232b4c52240d5330897954b55dbebb.jpg)
![18 Chassis Top View.JPG 18 Chassis Top View.JPG](https://www.hobby-machinist.com/data/attachments/17/17266-2ce8fac130e0d661527b1f3613ed3b46.jpg)
![19 Milling Tank Brackets.JPG 19 Milling Tank Brackets.JPG](https://www.hobby-machinist.com/data/attachments/17/17267-72fd3e64a6f13db31f22a9470cf4a4d5.jpg)
![19A Fuel Tanks & Brackets.JPG 19A Fuel Tanks & Brackets.JPG](https://www.hobby-machinist.com/data/attachments/17/17268-cd369c6ac57b8905493c19c322f1d416.jpg)
![20 Cab & Chassis.JPG 20 Cab & Chassis.JPG](https://www.hobby-machinist.com/data/attachments/17/17269-b30115706de18d8243dfd62302aed2c6.jpg)
![20A Cab & Chassis - Top.JPG 20A Cab & Chassis - Top.JPG](https://www.hobby-machinist.com/data/attachments/17/17270-05a3b6f7893671baaddeb57e4cc560b6.jpg)
![21 Cab Railings & Steps.JPG 21 Cab Railings & Steps.JPG](https://www.hobby-machinist.com/data/attachments/17/17271-8bda7b569a1971f4f19e2186016be755.jpg)
![00 Payhauler 350C image.jpg 00 Payhauler 350C image.jpg](https://www.hobby-machinist.com/data/attachments/17/17250-b3cf073b0743547b8b455682912d8d76.jpg)
![01 Frame Rails.JPG 01 Frame Rails.JPG](https://www.hobby-machinist.com/data/attachments/17/17251-3b3d15b466307f02042db006021ff161.jpg)
![03 Frame & Axles.JPG 03 Frame & Axles.JPG](https://www.hobby-machinist.com/data/attachments/17/17252-96cce3a47ca5cd41208787217ae8f390.jpg)
![04 Rear Spring Brkt & Hyd Cyl Mount.JPG 04 Rear Spring Brkt & Hyd Cyl Mount.JPG](https://www.hobby-machinist.com/data/attachments/17/17254-7f7e6053a2cdc1b50801284bc19af710.jpg)
![05 Frame Rear Axle Brkts.JPG 05 Frame Rear Axle Brkts.JPG](https://www.hobby-machinist.com/data/attachments/17/17255-f1ec4582a86a7e0e5801d1e297d8c62c.jpg)
![07 Rear Axle Modifications.JPG 07 Rear Axle Modifications.JPG](https://www.hobby-machinist.com/data/attachments/17/17256-105a39d2e908b79c4ef7e2d520af2b1b.jpg)
![06 Rear Springs - Main & Overload.JPG 06 Rear Springs - Main & Overload.JPG](https://www.hobby-machinist.com/data/attachments/17/17257-41ea168507e6fb600257730d5cf20de9.jpg)
![09 Rear Axle & Springs.JPG 09 Rear Axle & Springs.JPG](https://www.hobby-machinist.com/data/attachments/17/17258-d951b573db22e2e30e2e1b628432afaa.jpg)
![10 First Wheel.JPG 10 First Wheel.JPG](https://www.hobby-machinist.com/data/attachments/17/17259-7cd43b1e6010a587bead12896c03a3ca.jpg)
![11 Trans Pinion Shaft - Parts.JPG 11 Trans Pinion Shaft - Parts.JPG](https://www.hobby-machinist.com/data/attachments/17/17260-90e8d145b3a038dd68886e79bee6be24.jpg)
![12 Trans Case Modified for Pinion Shaft.JPG 12 Trans Case Modified for Pinion Shaft.JPG](https://www.hobby-machinist.com/data/attachments/17/17261-8ea7924f1ec1e694712eb6ae00e6e06b.jpg)
![13 Rear Driveline.JPG 13 Rear Driveline.JPG](https://www.hobby-machinist.com/data/attachments/17/17262-bb653cf066686c76c0dd262ff72f26e3.jpg)
![14 Front Spring Mounting.JPG 14 Front Spring Mounting.JPG](https://www.hobby-machinist.com/data/attachments/17/17263-7e2a808d6e500be0269a65b218022288.jpg)
![16 Front axle & Wheels.JPG 16 Front axle & Wheels.JPG](https://www.hobby-machinist.com/data/attachments/17/17264-4a3485402aca73960f393bad589c467e.jpg)
![17 Front Axle & Springs.JPG 17 Front Axle & Springs.JPG](https://www.hobby-machinist.com/data/attachments/17/17265-1c232b4c52240d5330897954b55dbebb.jpg)
![18 Chassis Top View.JPG 18 Chassis Top View.JPG](https://www.hobby-machinist.com/data/attachments/17/17266-2ce8fac130e0d661527b1f3613ed3b46.jpg)
![19 Milling Tank Brackets.JPG 19 Milling Tank Brackets.JPG](https://www.hobby-machinist.com/data/attachments/17/17267-72fd3e64a6f13db31f22a9470cf4a4d5.jpg)
![19A Fuel Tanks & Brackets.JPG 19A Fuel Tanks & Brackets.JPG](https://www.hobby-machinist.com/data/attachments/17/17268-cd369c6ac57b8905493c19c322f1d416.jpg)
![20 Cab & Chassis.JPG 20 Cab & Chassis.JPG](https://www.hobby-machinist.com/data/attachments/17/17269-b30115706de18d8243dfd62302aed2c6.jpg)
![20A Cab & Chassis - Top.JPG 20A Cab & Chassis - Top.JPG](https://www.hobby-machinist.com/data/attachments/17/17270-05a3b6f7893671baaddeb57e4cc560b6.jpg)
![21 Cab Railings & Steps.JPG 21 Cab Railings & Steps.JPG](https://www.hobby-machinist.com/data/attachments/17/17271-8bda7b569a1971f4f19e2186016be755.jpg)
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