Steamer

[Vanisle]

QTC Gears will ship to Canada by USPS but it takes awhile for them to get something in the mail.

http://www.qtcgears.com/

I have an extra set of their catalogues if you want them.

I will be going to Blaine in mid-April if you can't get McMaster-Carr to ship to Canada. I can get it shipped to Blaine and pick it up there for you. PM if you want.

Richard

[steamer]

Well I got my answer back from McMaster-Carr and it wasn't the one I was hoping for. They won't ship to this side of the border anymore because of the ever increasing complexities of the US export regulations. End of quote. But I may have found the a way around the problem and I'll keep you posted if it works.
Rob

[Finster]

Rob,

Your truck looks fantastic! I love the paint job and the colors you picked. If the picture of it was taken outside instead of on a table I'd swear it was a full 1:1 truck. Great job. No matter what you decide to do with the trailer I'm sure it will complement your truck nicely. I got a couple of questions, if ya don't mind:
Did you make the dump body out of styrene or Al? What thickness' did you use for the most part? Also, did you ever get a chance to draw up that diode reversing switch circuit that you are using on the screw drive? Thanks, keep up the good work.

[steamer]

Brian. Thanks for the comments on the FWD. I actually painted my truck to match one that we did for a customer in 1968 and it was a favourite as soon as I saw it come down the assembly line. That box and the one I'm building for the trailer are made with
3mm styrene. It cuts real easy with a table saw or you can score and snap for the bigger pieces. For small strips I found it worked best with a band saw set up with a fence, to get strait edges. I tried to do the drawing on one of the cad programs and it was to frustrating so I'll do it the old fashion way after supper and post it tonight.
Rob

[steamer]

Simple diode circuit. Hope I explain it good enough.
1 just a motor and if you reverse polarity, motor runs both ways.

2 if you add in down stop switch, motor power will be cut at bottom stop. Make the switch adjustable to get box to stop were needed. With this setup the box will not go back up again because S1 is now open and no power will flow either way, IE, reverse polarity.

3 A diode is simple blocking device that lets current flow one way, Anode + to cathode - but blocks power from flowing backwards. The power flows toward the white band but not the other way. Because of this if you install one across your switch it will allow the power to reverse the motor and the box will go back up. The diode is out of the circuit as soon as the box starts moving in the up direction and S1 closes. The one I used is a
1N4002 available at Radio Shack.
I've made a rough drawing for the three circuits shown



If there's anything not clear enough, just ask thanks.
Rob

[Finster]

Rob,

Thanks for the diagram and explanation. I'm pretty sure I get what's goin on. I'm not sure what CAD program frustrated you but if you ever need help with AutoCAD just ask. I'm sure I could help because I've used it for many years. I look forward to more of your updates.

[steamer]

Question. Does anyone know the length of the reach on a transfer trailer. I can't find any info on the net and there's not one around here to measure.
Thanks Rob

[chaseracer]

I will see is I can find out for you this week or next I have a couple coming in that I have to load just not sure when.

[Jared]

Originally Posted by steamer

Question. Does anyone know the length of the reach on a transfer trailer. I can't find any info on the net and there's not one around here to measure.
Thanks Rob

I never measured one but I would guess at 24 feet for an 8-axle transfer in Washington.

[chaseracer]

here you go Rob had a Transfer come in today took a picture and measured the reach for you.

[steamer]

Thanks. got the frame of the trailer made and I'm installing the dump screw drive. Made it a tandem ,tandem and not a transfer like I had hoped. To much work to make another box for the FWD. Will post some pictures tomorrow.
Rob

[steamer]

Jason. Great shot! That works out to 10 1/2" for scale and looks just right between the truck and trailer. I have all the brass tubing and now just have to get cutting.
Thanks Rob

[steamer]

Here's some pictures for the trailer. General view.

Greg gave me a thrust bearing that hold the blades on RC choppers.

View of the front Bogey with turn table

View of screw drive motor and slider.

Slider with lift arms

Thanks for looking Rob

[steamer]

Here's a few more pictures of the trailer. Coupled the FWD on the front and it measures 63 in. front front to back.

Made up the reach and now have to solder it up and add the reach jack.

More pictures of the screw drive.


Thanks for looking.
Rob

[doodlebug]

Look's goood Rob, keep us posted!
Later, Neil#2 aka doodlebug.

[RCLogger]

Thanks for the photo's Rob. That really helps to understand the screw drive setup.

p.s. Looks like we are going to have to build alot of road this year just so you can get that rig turned around... hhahah
Maybe even pav esome road, that thing is loooonnnngggg...

greg

[TheMachinist]

Oh that sounds like fun. An R/C paving machine

Trailer is looking really good Rob

[steamer]

Well I finally got more done on the trailer.
First picture is the carrier for the dump box.

To make it roll better on the main frame I installed roller bearing with flanges.

Frame in the travel position.

Frame in the dump position.

Short vid of it lifting, the first bit is just traveling along the frame before lifting.

Thanks for looking Rob

[rockNmayhem]

Hey Rob looks like the trailer is opperating pretty smoothly. Have you figured about how much it will lift yet?

[steamer]

You Bet. Greg and Lou were here this afternoon and we put 25 lb. on it and it lifted no problem. I'm not sure how much the dump box full of dirt or sand will be, but I think it would probably be less and handle it fine.
Rob