Re: Let The Build Begin!
 

Dang, to bad I wasn't as good as you were in the 12th grade! You're gonna go far, kid!

Re: Let The Build Begin!
 

Looks better with every update. When are you going to paint?

Chris has got a lot of talent, he's robots will be famous! I agree with Espeefan.

It got me wondering, what is the average age of scratch builders here?

Re: Let The Build Begin!
 

That one is for the pump motor.

Reg

Re: Let The Build Begin!
 

Espeefan - Thank you very much!

Madda - I plant to paint once I feel that i dont need to change anything because I don't want to paint it and start thinking im done when I still have lots to do.

RCP57 - You got it!

So today i got the housing for my belt reduction system for the pump, probably the longest part i have cut to date, 1 hour 40 mins and that doesn't even include re-setting the program after somebody thought it was a good idea to hit the shop power emergency switch in the middle of a cut. :mad::mad:

Now i just need to get the pulleys installed and it should be good to go.

http://i345.photobucket.com/albums/p...502_134309.jpg

http://i345.photobucket.com/albums/p...502_135450.jpg

http://i345.photobucket.com/albums/p...502_155608.jpg

http://i345.photobucket.com/albums/p...502_155618.jpg

http://i345.photobucket.com/albums/p...502_155628.jpg

Thanks for reading!

Chris

Re: Let The Build Begin!
 

:eek: almost 2 hrs :eek: :p:p:p:p:p JK , Chris :D your doing a great job ;) your fortunate to have that type of stuff in the HS . I was lucky enough to be able to have industrial shop the last year they offered it :( . 2 summers later they auctioned everything off :( No NC at that time not even a BP vertical mill .
some lathes a horizontal mill , sheet metal tools and a forge .

Re: Let The Build Begin!
 

ihbuilder - Thanks! Yea I really lucked out on the that one!

So Got the belt drive all finished and ready to be installed. And it came out great. It has a 2.85:1 reduction from motor to pump. I also got some other smaller parts cut out here and there. Just wanting for some metal to come in to get working on some other parts.

http://i345.photobucket.com/albums/p...521_210057.jpg

http://i345.photobucket.com/albums/p...521_210200.jpg

http://i345.photobucket.com/albums/p...521_210215.jpg

Chris

Re: Let The Build Begin!
 

nice!!!!

Re: Let The Build Begin!
 

aussietrckerguy - thanks!

So today I cut out the reservoir tank out of a 2.25" x 2" x 1" block, it has a 43mL capacity, M5 Inlet and output ports and a solid top cap. Hopefully it doesn't leak but only time will tell.

http://i345.photobucket.com/albums/p...523_210933.jpg

http://i345.photobucket.com/albums/p...523_210951.jpg

Hopefully tomorrow I can get back to work on the valves again.

Thanks!
-Chris

Re: Let The Build Begin!
 

Do you have a vent in it Chris?

Reg

Re: Let The Build Begin!
 

Wohoo, fast progress few last days, keep it going!


I'm waiting the results, high school boy building his own hydraulics :p

Re: Let The Build Begin!
 

RCP57 - No not yet as i don't quite know the orientation of the tank so i don't want to drill a hole for the vent line and then end up having it in a spot I cant get to.

Madda - Yea I have to move quick!! Time is really sneaking up in me, my first exam is in less than a month :eek::eek::eek::eek::eek:

On that note I might have to wait for lights and such until summer after I graduate, but luckily i talked to my teachers and they are fine with me doing that.

Anyways today I finished machining the body of the valve system and now i just need to redo the face plate, make the rotars and she's good to go. Then Ill finish the cylinders and we should be good to go on the hydraulics as long as we have no catastrophes :o

As always here are some pictures:

Inside the tank:

http://i345.photobucket.com/albums/p...524_175340.jpg

http://i345.photobucket.com/albums/p...524_175354.jpg

Valve assembly:

http://i345.photobucket.com/albums/p...524_175416.jpg

http://i345.photobucket.com/albums/p...524_175427.jpg

http://i345.photobucket.com/albums/p...524_175433.jpg

http://i345.photobucket.com/albums/p...524_175446.jpg

http://i345.photobucket.com/albums/p...524_175452.jpg

Start of the lift cylinders:

http://i345.photobucket.com/albums/p...524_182136.jpg

Thanks for lookin!

Chris

Re: Let The Build Begin!
 

So what did you do there with the valve? You going to have a pressured line & a return line coming from each valve?

What size fittings & tubings to the cylinders?

Re: Let The Build Begin!
 

Lil Giants - Yea on each valve i hill have a supply and return like you said with an external manifold. But looking at it now i should have milled in the supply and return lines into the valve block. Oh well, thats part of learning.

the fittings are M5 thread with 4mm OD tubing i believe, i'll try to get a pick up to showing the scale of the valves and the new front plate because that one in the pictures the fittings were to close.

Chris

Re: Let The Build Begin!
 

Well we sure are getting close!! I got all the electronics sorted out for now all i need is a servo slower or a servo tester to control the pump rpm/pressure. Until I accidently dropped a motor controlled and it shorted out on a metal shaving near my drill press :mad::mad::mad: i was even working on wood to prevent problems like this :( The valves are now done but I need to finish the cylinders to be able to test and see if it works. I got all the bucket linkage worked out and now need to weld and braze the bucket but i have to pick up some argon for the MIG my dad has got because our industrial sized welder at school burns through 14 GA. Heres some pics of the progress:

showing everything that needs to fit, ill cut some wires and clean it up once i know the final lengths.

http://i345.photobucket.com/albums/p...607_215408.jpg

http://i345.photobucket.com/albums/p...607_215420.jpg

http://i345.photobucket.com/albums/p...7/IMG_6203.jpg

Low current draw branch of the wiring harness.

http://i345.photobucket.com/albums/p...7/IMG_6205.jpg

Manifold from pump to valves and from valves to tank.

http://i345.photobucket.com/albums/p...7/IMG_6206.jpg

Finished valves:

http://i345.photobucket.com/albums/p...7/IMG_6207.jpg

http://i345.photobucket.com/albums/p...7/IMG_6208.jpg

http://i345.photobucket.com/albums/p...7/IMG_6209.jpg

Cab Lights

http://i345.photobucket.com/albums/p...7/IMG_6210.jpg

http://i345.photobucket.com/albums/p...7/IMG_6211.jpg

Bucket linkage

http://i345.photobucket.com/albums/p...7/IMG_6212.jpg

Lift and turning cylinders

http://i345.photobucket.com/albums/p...7/IMG_6214.jpg

Thats all for now and i've got one week to get this thing working!! Time to get er done!

Chris

Re: Let The Build Begin!
 

Very good job Chris!

I wish you good luck to get everything working, you must be pretty nervous to see what's going to happen when all hooked together?

Put video here asap you get some action!

Re: Let The Build Begin!
 

Thanks Madda!
yea its a pretty nerve racking especially because i don't have any more time or money to fix thing if they dont go as planned. Plus so many people who have helped build it wanna see how it works so i gotta make sure it actually runs!!

Will do, might be after i get it all done but ill get some up asap!

Chris

Re: Let The Build Begin!
 

Hi Chris


Looking great I'am sure it will all come toghter and work.
Very high standard of work wishing you well.

Regards

Mark

Re: Let The Build Begin!
 

OK Chris, you are well outta school so where is the finished product?

Re: Let The Build Begin!
 

Hey sorry for the lack of updates but I needed a break, i was working 6+ hrs a day trying to finish it and needed a break before i got to tired and said screw it. Unfortunately i ran into some problems with the loader and some other things and didn't get it done in time but i got an all access pass to the shop so on my days off ill be in the shop finishing it up! Dont worry ill get it done come **** or high water!

Chris

Re: Let The Build Begin!
 

Hi Chris, any update on the loader?
Question on your valve design, what do you use as seals between rotator and base?
Dan

Re: Let The Build Begin!
 

hi chris.. i cant wait to see your project run again.. i love your skill and sharing it to us
i hope this isnt forgotten project..

Re: Let The Build Begin!
 

He's a young fellow fresh out of school who has probably found himself lost in wine, women & song for a (long) while. :D

Re: Let The Build Begin!
 

Been working in this thing here and there in SolidWorks updating it and correcting errors from what I have learned in school so far. Isn't completely dead just in the middle of a re-vamp I guess you could say.

Chassis has been changed to 1/8" plate that is all slip fit, then will be TIG welded, re-worked all pivot points to use a proper bushing setup, Re-worked the axle mount.

This is also on the list to be updated:
cylinders
possible suspension
electronics
pump
valves
pressure release
body
oil cooler
battery setup
possible Aruduino based custom radio ~ basically un limited channels
chassis will continue to be updated

When that is all done at some point i will get all the plates laser or water jet cut and then TIG weld them into a assembly.

Hydraulics are my largest challenge right now as i want them to function perfectly.

http://i345.photobucket.com/albums/p...ps589780b7.jpg

Hope I haven't been forgotten!! :D

-Chris Pope

Re: Let The Build Begin!
 

No! Keep it up!
Cheers, Neil.

Re: Let The Build Begin!
 

Hey,

Thanks Neil,

So the more i've learned the more I will be changing this project. The chassis has been updated again but I am not fond of it...

I am currently studying micro controller hardware interfacing in school right now. So I think when I am complete school I will be designing a Micro controller based operating system with feedback and a custom wireless interface for a huge amount of channels. Hopefully something around a 1.2Ghz for low interference.

Maybe one day Ill get this complete...

Re: Let The Build Begin!
 

We do need better radio controllers designed for RC construction vehicles. Keep up the good work. We all learning from your work.

Re: Let The Build Begin!
 

Nice to see another local builder, your guys knowledge of machining parts is amazing. Keep up the good work Chris.
Mike.

Re: Let The Build Begin!
 

Very impressive work Chris! After ten years of military and law enforcement I went to an aviation tech program (FAA cert. believe they call it an EASA up north) your light years ahead of where I am... your work greatly makes me wish I had taken shop and stuck with it lol. Like the design keep it up :)

Joe

Re: Let The Build Begin!
 

This is a profession?
Really good works.I don't see any people like you for my country.

Re: Let The Build Begin!
 

Thanks for all the kind comments! I've made more slow progress but only in Solidworks as funds are low as is time with my current student status.

Denn1s33 - Yes, I am currently working as a CAD Designer for my full time employment during summer and I do small CAD jobs during school for friends and co-workers.

So far the complete chassis has been revamped again to adjust for small changes, the hydraulic system has been redesigned and now utilizes:
smaller variable flow directional valves
variable pressure relieve valve
oil cooler
proper routing and hose management
manifolds are used for pressure and return to tank lines
new tank
all hydraulics are in the rear chassis below the soon to be electronics deck
also added a 4th valve for an accesories

Heres some more pictures:

http://i345.photobucket.com/albums/p...psef66a17c.jpg

http://i345.photobucket.com/albums/p...psb186db23.jpg

Any questions let me know!

thanks again,

Chris

Re: Let The Build Begin!
 

Yer having fun with it , looks great!
Cheers, Neil.