[MOC] Grader (generic) - finished

[Jurss]

Finish at the first post on second page.

Somehow today I realised, that I wan't to build a grader 

Some hour I looked at grader pictures, some videos about functions. 

After another hour I have front axle, which has 3 functions - steering (of course), swinging suspension and leaning front wheels. Everything will be manual with some wormgears and linear actuators, with operation close to that function.

Every other common function also is planned (moving to sides, rising/lowering each side, leaning, tilting, rotating) for blade and scarifier . Also frame articulation is planned. So, everything :) At least, that is the plan. 

 

Edited September 5, 2022 by Jurss

[1gor]

If you could have those in yellow it would be great https://www.bricklink.com/v2/catalog/catalogitem.page?P=31794&idColor=3#T=C&C=3

I'll follow this topic with interest.

[Jurss]

5 minutes ago, 1gor said:

in yellow

Not yet :) or ... in fact, I realised, that I have two in porsche. I don't think, that I will disassemble it for this.

[1gor]

13 minutes ago, Jurss said:

Not yet :) or ... in fact, I realised, that I have two in porsche. I don't think, that I will disassemble it for this.

IMHO light bluish gray look better in Porsche, but you are the one who has the last word. 

[Jurss]

I only have 2 now, so, to have to more, I need to buy CAT 

So, some two more hours, and I have this

More progress, most probably will be next weekend

[Jundis]

Looks very good, especially the steering mechanism! Do you have full steering angle even when the axle is angled/oscillated? :-)

Do you have enough space on the middle actuator so position the gear on the side via bevel gears? Would be in better reach as imho.

[jorgeopesi]

I agree, the steering mechanism is very good.

[Thirdwigg]

Very cool. These machines have some many functions, so they make a perfect Technic MOC. It's looking great so far @Jurss.

[Jurss]

12 hours ago, Jundis said:

Do you have full steering angle even when the axle is angled/oscillated?

With this - no. With geared connection or similar, it would be possible. Maybe I need to switch to chain or something.

12 hours ago, Jundis said:

Do you have enough space on the middle actuator so position the gear on the side via bevel gears?

I think yes. This is really WIP, so everything can change. Main problem is, that blade angle adjustment now is incorrect. It works correct way only when turntable is not rotated. When it is turned, then it is not correct anymore. This was first option that came just during build process. But it seems, that I will need to think about something proper. If there won't be anything compact or usable, that is more proper, then I will go with this.

3 hours ago, Thirdwigg said:

Very cool. 

Thank You! Yes, I wanted to build something technical, but not also too complex. But this is still really challenging.

[Johnny1360]

Very ambitious project, good luck. I have always liked road graders and have attempted several over the years, so I can appreciate what you are up against. Looking good so far and I will be following with great interest.

[Jurss]

Yesterday had some time

Changed steering "linkage" to chain, so it always work in full range

Changed connection of main articulators for height, now they have better angle range

Started to think of articulation to sides

Is this even legal?

[Mr Jos]

47 minutes ago, Jurss said:

Is this even legal?

Can you still put the 12T gear on it before that pin? And I don't see how you can put a strong drive gear on that construction.

[Jurss]

Yes, gear is also possible. Use case is different question.

[SaperPL]

1 hour ago, Jurss said:

Is this even legal?

No, it shouldn't be, delet dis xD This is prone to damage those pins easily, I think.

[2GodBDGlory]

I don't think it's going to be legal, but I know I've done it with the similar 64589 connector!

[GerritvdG]

Really interesting project and a nice scale, not to big, but big enough to fit all those interesting functions!

[Jurss]

Just arrived @1gor

[1gor]

They look nice

[Johnny1360]

Indeed, random question, what sort of steering ratio do you have now?

 

[Jurss]

If I understood question correctly, then it needs half turn of axle now from end to end.

Replaced parts on front axle, also grey worm gear replaced with black.

[Jurss]

As lime grader for TC22 is in fact finished, returned to this, larger one. 

Added linear actuator for blade side swing

Rised by one stud front axle, so that it is possible to really rise blade. Also front part is almost finished

 

[Jurss]

Some progress. There are even some changes on front part, but didn't took specific pictures

[Jurss]

Made already cabin with all steering controls, but then realised, that I have issue - front part is connected one stud too low. That means new challenges connecting steering axle and also articulated steering actuators

[Philtech]

Great project! I will follow this topic with a lot of interest.

[Jurss]

13 hours ago, Philtech said:

Great project! I will follow this topic with a lot of interest

it just can take some time. And it is summer now. OK, somehow rainy this year, but it is good for this hobby.