Trommel Build
 

Had started drawing something up a while ago and just got some time a few weeks ago to start making some parts for a drum screen.

http://i.imgur.com/RrrpoFd.jpg

http://i.imgur.com/6dFWM5c.jpg?1

http://i.imgur.com/yzph7cf.jpg?1

http://i.imgur.com/glbkvGx.jpg






and then skip way ahead...I didnt take any pictures during this time as i was in high speed production mode..

http://i.imgur.com/YHwQhN7.jpg

http://i.imgur.com/nmsVb7P.jpg

http://i.imgur.com/1sQZ0RR.jpg

http://i.imgur.com/1W8rAze.jpg


http://i.imgur.com/9dmP3bH.jpg





I have a few different speed motors im going to try once it is operational. The 51 rpm gear motor shown turns at a nice scale speed but might be a bit too slow...will see.



http://i.imgur.com/gig0h08.jpg

http://i.imgur.com/7t60R1l.jpg





If i ever get my junk up and running i needed a purpose besides just digging holes in the ground, So i also started piling up some dirt to have somewhere to set the screen up. Will start a new thread in the Construction Co page once im open for business..:)

http://i.imgur.com/lly7Op7.jpg

Re: Trommel Build
 

Oh and the shaker pan seems to work well with a 970 rpm gear motor attached. I tried 3 different speeds and of course faster was better.

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im not seeing any pictures

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Me either

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I had started to run the D10 around (first time in the dirt) and grading the ramp that goes up to the top and was happy with its performance, and was gonna take some vid when this happened.. :(

http://i.imgur.com/QnOpUk5.jpg


Have the parts to fix it now,so will hopefully get it back outside soon.

Thanks for looking.

Re: Trommel Build
 

I can see the pics, not sure what the problem is.

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I see them now except the first one. Great build looks good. Look forward to seeing some videos of it.

Re: Trommel Build
 

Ok cool. Pics might need resizing.. I was in a hurry when i posted.

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I can't see the photo as well.

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Here's a screencap, of what I see, taken just minutes ago.
https://farm5.staticflickr.com/4302/...d1539fc8_b.jpgRC Truck And Construction by Anthony Kalnoski, on Flickr

Re: Trommel Build
 

If i hit view image, it sends me to a google login page. Is there a way you can set images to public?

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Ok, giving Imgur a try. Seems like google photo was generating ridiculously long html and maybe screwing things up. Hope this fixed the problem.

Re: Trommel Build
 

Much gooder, I see the pics now. Looks good, a nice build.

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:D:D:D

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looks great now. what belt are you using to spin it? Also on the drum is it ribbed for the bet or just tension grip spins it?

Re: Trommel Build
 

Thanks, I went with a timing belt with teeth and printed a gear to slide over the drum. Got the belt from servocity. Also switched to a 100 rpm gear motor which sounds really fast but looks to be just right. Still trying to finish a few things before I start testing with dirt. The rollers need to be machined out of alum next and going to use a Picoboo prop controller to run the motors. They are pretty neat because you can program sequences and use lots of different triggers to start the operation. I've used them in the past for Halloween props that work off 12v wiper motors. They also play sound files you can load. For even more realism I might try to record some machinery sounds from around our shop and mix them together. For example, record the lathe starting with the chuck on a high rpm, which winds up for a few seconds and use that every time the trommel is triggered to start.. I'll have to play around with it.

Re: Trommel Build
 

Yeah mate, that fixed the problem, the Trommel looks great too by the way.

Re: Trommel Build
 

Very cool! This is on my short list, I need to be able to bust up clods and/or sort dirt! Great work and thanks for posting!

Jim

Re: Trommel Build
 

:eek: :eek: Trommel looks great 👍 Looking forward to see it in action!

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Thanks, might get a chance to test this weekend. Will def post a vid of the good or bad.

Re: Trommel Build
 

Spring blocks and new rollers are machined. The initial spring setup was crude but was helpful in getting an idea what the movement was going to be like. Determined a stronger rate spring was needed to handle more weight in the hopper. Also added a heavy counter weight to the shaker motor to increase agitation due to the stiffer springs. Wired up and painted...Works well, Test video attached.

http://i.imgur.com/ImaNFcT.jpg

http://i.imgur.com/wLSG3zP.jpg

http://i.imgur.com/OK01jY8.jpg

http://i.imgur.com/H1c7963.jpg

http://i.imgur.com/AG5g0XV.jpg

http://i.imgur.com/lmONuiP.jpg

http://i.imgur.com/VRSBQnS.jpg





https://www.youtube.com/watch?v=V5VQ5EwAYKA

Re: Trommel Build
 

That thing is COOL,:cool: and great background for the photo!

Jim

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Wow you knocked it out of the park! Nice piece to be proud of :)

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Now that's a cool build ! Would like to have that setup in my play-park.......:D

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Wow. That came out beautiful.

Are the footers on that height adjustable, or do you need to level the site first?

Re: Trommel Build
 

Thanks Jim, didn't really plan that I was just setting it down on my way to the barn and grabbed the spray can from the garage before I painted and decided to snap a before shot.. before grabbing it again. Worked out well I guess.

Thank you! Looking forward to dusting off the Vario and getting some dirt dumped in this thing.

Thanks Bo, I guess I can always lease it out :)

Thank you, that's a good observation. I didn't make them adjustable at all as I figured the whole structure needed to be mounted to a platform which it is ( plywood base) and the concrete blocks add enough weight to the whole thing to keep it still. It tends to vibrate quite a bit from the shaker motor. So I'll have to level the site where it will be set up.

Re: Trommel Build
 

That unit is sweet. You could start selling them is be in a line up for one.

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Jason,

I just watched the video again and went thru the build thread, very cool!

Did you start with a scale/plan in mind when you drew it up? Do you plan to park dump trucks under it, or separate the piles with concrete barriers and then load out with a wheel loader or possible use roll off dumps?

How tall is it overall and if you are scale I assume you are trying to match the bruder and tamiya stuff?

I'm just trying to figure out a few of those things before I try to hack something together. :rolleyes:

Did you consider a jaw crusher for part of this setup? I wonder how hard it would be to build something in that scale and have it perform well?

Thanks!

Re: Trommel Build
 

Jim, The first thing i wanted to do was make sure that i could dump into the hopper without any issue so measured the width of buckets on my machines. Then yes like you mentioned, i wanted to be able to park trucks under the drum or just use the front loader to move material out. Thats why its so tall at 23" to the top of the bin and 30" wide on the outer legs. I plan to build conveyors to stick under the drum as well for stock piling...Havent got that far yet though. One thing i wish i wouldve done was make the shaker bin angled so a screen could be layed on top to catch any really large clumps. I may address that in the future if i find its a real problem. The passage from the bin to the shaker pan is smaller so that would keep anything too large from going into the drum anyway..

A crusher would be cool, Prob not too difficult. I did look at a few online before starting this but wanted to sort by size because i was interested in building a road using asphalt grindings i have..Thats what got me started down this path..

I try to scale everything to 1/15 to work with the Bruder and Tamiya stuff. Heres a few poser shots with Bruder and Ertl 1/16 stuff.

http://i.imgur.com/284M3hJ.jpg

http://i.imgur.com/e0HNG9C.jpg

Re: Trommel Build
 

Jason,

Very good, the new photos help me visualize the scale, thanks!

Jim

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Totally AWESOME!!!! Keep us all posted.

-Terry

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Very nice job. The weathered look paint gives it an added touch.
The sound recording around your shop sounds like an interesting idea.

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Nice job on the trommel!

Off topic, are you going to just paint the mdf walls in your shop?
Have done the same in my new shop so just curious, I'm about to paint my mdf boards this weekend.

Re: Trommel Build
 

Thanks! Will do.

Thank you. I tried capturing the feel of an older plant maybe built in the 50s, similar to one at a gravel pit we used to haul out of when I used to drive.
I posted a vid link above with the sound. Ended up taking sound clips from YouTube videos of electric motors, locomotive and a rock crusher and mixed them together.

Kalle, thanks. I had thought about painting the walls last year when I built that room but never got to that point yet. Lightening up the walls would be nice to brighten up the place. What color you thinking? Spray or roll? White would show the least amount of texture on the mdf.

Re: Trommel Build
 

Ok I see.

I'm going to paint them in a white color, I will use a roller to paint.
It will lighten up the room quite a lot I think. I can send you some pics when I'm done, I'll send you a pm.

Re: Trommel Build
 

Sounds good Kalle, Hope your paint job goes quick and easy.

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Field test went well, but started to rain before i could record any video. Getting the remnants of Harvey through our area today..So here is a few shots of the site. Side note- This is the first time for the Vario in the dirt.:D

https://i.imgur.com/wfYjASB.jpg

https://i.imgur.com/Asevl4y.jpg

Getting ready to pack up before the rain hits...

https://i.imgur.com/1M8MdoL.jpg

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It looks awesome! The paint was spot on!

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Thank you!

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Fantastic build ! Great play area, i see lot of fun going on. I'll put something like that on my wish list for Santa. :D