Re: Build an Excavator from Scratch
Nice machining! That slew motor clamp with dovetailed adjustment is really slick!
I'm not sure if adjusting your feed speeds for the material might help with edges on breakout, or if i'm just used to seeing parts after a deburr tool has done a little chamfer. The micro bench sander could be its own write up over in the Tools section. |
Re: Build an Excavator from Scratch
some impression from the cabin
https://blog.rb-fotos.de/wp-content/...r/img_7510.jpg https://blog.rb-fotos.de/wp-content/...r/img_7511.jpg https://blog.rb-fotos.de/wp-content/...r/img_7512.jpg The stick are display holders https://blog.rb-fotos.de/wp-content/...r/img_7513.jpg https://blog.rb-fotos.de/wp-content/...r/img_7515.jpg |
Re: Build an Excavator from Scratch
cabins upper guard
3mm stainless rods https://blog.rb-fotos.de/wp-content/...r/img_7516.jpg welding setup https://blog.rb-fotos.de/wp-content/...r/img_7517.jpg https://blog.rb-fotos.de/wp-content/...r/img_7518.jpg https://blog.rb-fotos.de/wp-content/...r/img_7519.jpg operators joystick. freehand cutted from some stock aluminium using a ball vise and a foredom hanging motor. https://blog.rb-fotos.de/wp-content/...r/img_7524.jpg looks similar enough as little details on the chair. https://blog.rb-fotos.de/wp-content/...7a12449ef2.jpg |
Re: Build an Excavator from Scratch
I think you've already told us, but what do you use for a welder?
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Re: Build an Excavator from Scratch
Quote:
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Re: Build an Excavator from Scratch
Very nice craftsmanship. Really like your 'whittled out' control handle.
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Re: Build an Excavator from Scratch
thank you, zabco.
---- The cabin gets a bit more interieur and a fire extinguisher. All windows are in and the cabin is installed on the under construction. https://blog.rb-fotos.de/wp-content/...r/img_7548.jpg https://blog.rb-fotos.de/wp-content/...r/img_7549.jpg https://blog.rb-fotos.de/wp-content/...r/img_7551.jpg The complete ensemble is dismountable in seconds to reach on the ballast sections. https://blog.rb-fotos.de/wp-content/...r/img_7552.jpg The cabin is done :bounce: |
Re: Build an Excavator from Scratch
I really am amazed at how quickly you complete all this fabrication! Very nice!
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Re: Build an Excavator from Scratch
Thank you.
Fast? This build is running since eight Months. But the end is nigh :D The Cabin is done and the work on the Hull has started. Unfortunately I'm not able to "metal shaping" with a shrinker/stretcher/english wheel in a proper way. So I've decided to make the back not really round but in five parts. https://blog.rb-fotos.de/wp-content/...r/img_7579.jpg After two hull panels (the back and the small part behing the cabin) I've mocked up all the parts to check the proportions. I like it so far :) https://blog.rb-fotos.de/wp-content/...r/img_7580.jpg https://blog.rb-fotos.de/wp-content/...r/img_7581.jpg https://blog.rb-fotos.de/wp-content/...r/img_7582.jpg |
Re: Build an Excavator from Scratch
The superstructure and the undercarriage are now connected.
The electro block has moved from vertical https://blog.rb-fotos.de/wp-content/...r/img_7584.jpg to horizontal https://blog.rb-fotos.de/wp-content/...r/img_7586.jpg to get room for ballast, if i need some https://blog.rb-fotos.de/wp-content/...r/img_7585.jpg |
Re: Build an Excavator from Scratch
Pufferfish:
I've been watching a youtube channel called Fitzee's Fabrications. He does bodywork including fabricating some very complex replacement panels using simple hand tools, including some tools that he has built himself. Check out his videos if you haven't already seen them. While his go to welder is a 120V MIG, and your go to welder is NOT - they might still give you some ideas. 40+ years ago I was trained as an autobody repairman, and Fitzee is an education in how much you can do with simple tools. Don |
Re: Build an Excavator from Scratch
Hi Don,
thank you. I'll will give him a look. Machining is easy for me. Make an approach, measure, finishing, ready. Metal shaping is a thing for wich I need more "feeling" for sculpting than I have.:o |
Re: Build an Excavator from Scratch
The first side of the Hull is done. All brushed stainless steel.
No color is planned. https://blog.rb-fotos.de/wp-content/...r/img_7608.jpg https://blog.rb-fotos.de/wp-content/...r/img_7607.jpg |
Re: Build an Excavator from Scratch
Awesome workmanship!
Love all the detailing going on with the cab. Each update is pretty epic |
Re: Build an Excavator from Scratch
Using two old smd led stripes
https://blog.rb-fotos.de/wp-content/...r/img_7626.jpg to make the working lights (just mocked up. some shaping still needed) https://blog.rb-fotos.de/wp-content/...r/img_7629.jpg https://blog.rb-fotos.de/wp-content/...r/img_7628.jpg works https://blog.rb-fotos.de/wp-content/...r/img_7627.jpg |
Re: Build an Excavator from Scratch
Most of the time my mantra is "keep it as simple as possible" also for my strategy in making things. The earlier shown second version of the rotary drive was build in three parts some of them from brass because it's easier to handle on the mill.
The drive works well under lab conditions but not if some cross forces comes up. If I increase the clamping to handle the forces this happens https://blog.rb-fotos.de/wp-content/...r/img_7651.jpg Major problem was the lack of a baseplate. To build the complete lower part from a massive block would be too expensive. Thereby I've decided to build it from stainless parts and weld them together. https://blog.rb-fotos.de/wp-content/...r/img_7661.jpg Works now perfect with all forces up to a stalled motor. |
Re: Build an Excavator from Scratch
Working lights done :)
overall 18 smd leds. The illumination of the working area fits good. (completely dark room) https://blog.rb-fotos.de/wp-content/...r/img_7675.jpg Also the space in Front of the excavator is bright. https://blog.rb-fotos.de/wp-content/...r/img_7677.jpg |
Re: Build an Excavator from Scratch
Very nice build. Impressive skills!
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Re: Build an Excavator from Scratch
Thank you.
I'm a fan of functional gimmicks. So i've spend the last two days in the shop to make a remote controlled ladder for the operator. https://blog.rb-fotos.de/wp-content/...r/img_7698.jpg https://blog.rb-fotos.de/wp-content/...r/img_7699.jpg https://blog.rb-fotos.de/wp-content/...r/img_7700.jpg I think, the operator needs some handrails https://blog.rb-fotos.de/wp-content/...r/img_7703.jpg |
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