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Re: Servo driven level crossing (Lumsdonia Tip 804)

Posted: Sat Jul 08, 2017 12:52 am
by End2end
Ironduke wrote:I sense a lack of determination there End2end.
Are they usually closed by a person in real life?

Not lack of determination Ironduke, rather a lack of skills and correct tools. I've never been very adept at all this accuracy stuff. :oops:
I don't know about manual or automatic closing on the real ones. I just bought the kit as I liiked the gate over others I saw not realizing I had to put a lot of it together like gluing the mesh and angled pole (which is actually a peice of cord in the kit) on. :lol:

The brass rod gives me more confidence moving forward. Thanks Tricky.
Unfortunatly I don't have a vernier caliper to get the exact measurement of the locating nipple although I may be able to borrow one.
My local model shop is neither very local nor well stocked sadly so by measuring the gate's locating nipple with the vernier I may have to chance an online purchase like these... although they are very excessive for my meagre needs.
http://www.ebay.co.uk/itm/Albion-Alloys ... t_6UYZ7kJg

I have seen these which I thought could use to connect together the vertical brass rod coming down from the gate and what ever comes up off the servo head/arm.
http://www.ebay.co.uk/itm/2mmx2-3mm-Bra ... SwMvtZOj8z
The smallest I've found are 2mm-2.3mm.
I still would need to buy the metal rod part that attaches the servo head/arm to this coupler though.
Thanks
End2end

Re: Servo driven level crossing (Lumsdonia Tip 804)

Posted: Sat Jul 08, 2017 7:14 am
by TimberSurf
TimberSurf wrote:Supply list
2mm diameter brass rod (or slightly larger)
Brass tube slightly larger in internal bore than the brass rod
Electrical (Choccy block) connectors


E2E The brass you link to, is way too small.
http://www.wilko.com/electrical-accesso ... vt/0344915

Connector size is not critical, it does not have to be the same size as brass wire, nor be concentric.

The mechanism does not have to be an precision engineering masterpiece, as long as the rod and tube are a reasonable fit, most else will work with relatively wide tolerances.

You could use a plastic lollipop stick and a paper clip!

Re: Servo driven level crossing (Lumsdonia Tip 804)

Posted: Sat Jul 08, 2017 10:43 am
by End2end
TimberSurf wrote:E2E The brass you link to, is way too small.

For some reason the sale returns to the default listing but if you use the drop down selection menu on the sale you can see listed "SFT9" with 1, 2 and 3mm tubing in the pack.

Unless you mean the brass shaft connector also linked to?
Thanks
End2end

Re: Servo driven level crossing (Lumsdonia Tip 804)

Posted: Sat Jul 08, 2017 10:44 am
by Bufferstop
You could use a plastic lollipop stick and a paper clip!


Now there's a solution I might have come up with :lol:

Re: Servo driven level crossing (Lumsdonia Tip 804)

Posted: Thu Dec 14, 2017 9:48 pm
by End2end
posted in wrong place. Please delete.
Thanks
End2end

Re: Servo driven level crossing (Lumsdonia Tip 804)

Posted: Tue Mar 13, 2018 10:11 pm
by TimberSurf
Buggleskelly wrote:I started a project in 009, and made this crossing from a Dapol kit, and intended to insert it in a corresponding square hole in the baseboard. I used copper wire, running through a brass tube as a bush/bearing, to connect the servos and gates. And used a pinvice to drill the hole in the crossing gate post. I intended to operate the gates using an Arduino using just two push switches, but had no success in writing the programme for it, hence project scrapped and I have moved on. The vehicle on the crossing is a converted Dapol railbus using a Kato chassis.


Having just written a fully automated twin program for my two servo car lifts, I recon a simpler program for a push button control for your gates would be easy.

Re: Servo driven level crossing (Lumsdonia Tip 804)

Posted: Thu Mar 15, 2018 12:45 pm
by Buggleskelly
Hi Timbersurf,
After so many frustrations with my interest in model rail, and lack of space at the moment, this is on the back burner while I concentrate on wooden model boat building. :0)