Re: Volvo G990 Grader
 

You my friend are incredible:)

Re: Volvo G990 Grader
 

OUTSTANDING!:popcorn:

Re: Volvo G990 Grader
 

Wow, exact detail, right down to the ball joint! Nice!

Re: Volvo G990 Grader
 

beautiful work :drool:

Volvo G990 Grader
 

Thanks fellows! Have some "making of" pics to add:

https://drive.google.com/uc?id=0B_yT...VV0d3ZtMFpJMTg

https://drive.google.com/uc?id=0B_yT...k5NaUE4VTdXdUE

https://drive.google.com/uc?id=0B_yT...VlfemlGYnJXOHM

https://drive.google.com/uc?id=0B_yT...TFjdlRhNDlZWlE

https://drive.google.com/uc?id=0B_yT...mdxNjBwSlZkQnc

https://drive.google.com/uc?id=0B_yT...i1qSk1vR1NwVlk

https://drive.google.com/uc?id=0B_yT...nBCNm11MHUxMXM

Re: Volvo G990 Grader
 

Wow.....the workmanship on this is exceptional!!! Remarkable amount of work and skill going into this build, the attention to details is inspiring!!

Re: Volvo G990 Grader
 

Hello guys, I see an update is more than overdue, had to go to the fifth page to find the thread again.

Having spent a long time making some as-much-scale-as-seems-possible 45 degree angled fittings I couldn´t wait finishing the 90 degrees ones, and finally had the circle drive tested without them only last week, although I finished the valve already last April. With the glide bearings still missing, the tooth wheels jam in one direction, but funny enough hardly in the other, as you can see in this video.

https://drive.google.com/uc?id=0B_yT...GJvVFBmcm1pX1k

https://drive.google.com/uc?id=0B_yT...FBYUnV6dm9fYjA

Re: Volvo G990 Grader
 

Absolutely fantastic work Stefan:drool:, GREAT VIDEO:drool::drool: now I see why you RC Para is not flying yet.:D I am sure the grader will be finished before I am 60 :D

Re: Volvo G990 Grader
 

That is just amazing!

Re: Volvo G990 Grader
 

:jaw::jaw::jaw: very nice Work Sir

Re: Volvo G990 Grader
 

@ Paul, Ap, Pontiacmann: Thanks! Glad you like it.

Now to the moldboard. Started from a stainless tube with 3 mm wall thickness. The radius of the tube was only slightly smaller than needed and to my luck it widened up to almost exact scale radius when the cut released the inner tensions.

https://drive.google.com/uc?id=0B_yT...lZHTTRKZjZiNUU

The upper edge has a non-radiused portion, so a 10 mm by 3 mm strip was added.
https://drive.google.com/uc?id=0B_yT...0JOX2dubUlIS28

https://drive.google.com/uc?id=0B_yT...1NTWlloT2EtSXM

https://drive.google.com/uc?id=0B_yT...nlfOWpRTzdReTQ

The real moldboard is recessed along three sides for the cutting edges as you can see here.
https://drive.google.com/uc?id=0B_yT...1NLS1hZdFhIVDQ

https://drive.google.com/uc?id=0B_yT...mtna2ZhRnZYX28

The recesses are apparently forged in a big press, so forging was one of the build options considered, but in the end I opted for a combination of adding parts to the edges and milling and grinding out the final shape. First, the ends were bevelled.

https://drive.google.com/uc?id=0B_yT...EtldGl4QzZVT3c

https://drive.google.com/uc?id=0B_yT...Wd6UXE1WndHV2c

https://drive.google.com/uc?id=0B_yT...19OQjJYcFFsNFE

https://drive.google.com/uc?id=0B_yT...UlSdjV1dkllWGs
Stefan

Re: Volvo G990 Grader
 

WOW!!!:jaw: It looks like I will have to watch this build a lot closer than normal builds. Your machining and thinking outside of the box makes me want to stop trying to make anything :eek::eek: You just keep setting the bar higher and higher.

Absolutely one of the best builds to date on the forum.

Re: Volvo G990 Grader
 

I have to agree with tc1cat you are so skilled it's un real. Wish I had just 1/10 of the skill you have been watching very close. Keep up the good I am sure many will be watching also

Re: Volvo G990 Grader
 

Man you definitely are disciplined in your work!! I have a hard time when I have to change drill bits!!! Skill and dedication are paying off, build looks awesome. Looks like you got a 1:1 to keep the details in sight!!

Re: Volvo G990 Grader
 

Stefan your skills and thought of how to preform the operation are very impressive. Thank you for sharing you skills and thoughts with us. Ed

Re: Volvo G990 Grader
 

Thanks for the great comments! Think I´ll be able to post some more pictures the coming weeks.

Thanks a lot Lynn, but I really hope you don´t stop building, hate it to be the cause of that :o. However, now when the circle turn valve is finished I don´t think the bar can come much higher in this build (maybe except for the swivel valve, where there is very limited space for the hydraulic fittings).

Thanks! But don´t underestimate yourself. With some time and thorough planning you can achieve a lot. But sure, you need the tools.

Thanks! I really wish I´d have the original within reach. Still I´m lucky, cause the BAUMA fair is within 1 hour driving distance.


Thank you, Ed.

Stefan

Re: Volvo G990 Grader
 

Impressive video and photos of the work you do, Stefan. I think Your work is inspriring for most of us. Looking forward to coming updates!
Dan

Re: Volvo G990 Grader
 

Terrific project. Great photos.

Re: Volvo G990 Grader
 

Wow Stevan,

This is a FANTASTIC build thread and words can't discribe how great the level of skill needed to complete this task well done keep up the great work

:jaw::jaw:

Re: Volvo G990 Grader
 

Thanks for the recent comments. Now, to the bevelled ends the recessed portions were separately attached.

https://drive.google.com/uc?id=0B_yT...VNkc00wemREZ2M

https://drive.google.com/uc?id=0B_yT...ndsRThKeWZPS2c

Simple jig :D to align the lose parts.
https://drive.google.com/uc?id=0B_yT...TU3Y2QySWVodWs

Some tig spots.
https://drive.google.com/uc?id=0B_yT...zNGNzhqbzhVUm8

https://drive.google.com/uc?id=0B_yT...WZPaUExVDZIdDQ

Before and after hard soldering.
https://drive.google.com/uc?id=0B_yT...lp3T2E3Z2JRWGc

Stefan