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 Idler wheels? where to get in Australia or how to make? 
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Joined: Thu Jul 22, 2010 10:10 pm
Posts: 86
Location: Paralowie, South Australia
Post Idler wheels? where to get in Australia or how to make?
Hi all,

Almost completed my Timelapse 3-Axis slider and wondered what others had done for idler wheels for the belt. It's the only thing that is giving me grief. Do you use bearings or just a shaft through plastic/wood/steel etc... Is there somewhere in Australia maybe that has a product that would work?

Thanks in advance..

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Andrew Wall,
South Australia.


Fri Jun 13, 2014 6:01 pm
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Joined: Wed Nov 25, 2009 1:17 am
Posts: 336
Location: Hindmarsh Valley, South Australia
Post Re: Idler wheels? where to get in Australia or how to make?
Hey Astroman,

Steve here from Blackwood SA. Do you mean the ones to guide the belt to the drive motor ? If so I used a combination of bearings, bolts and washers which work quite well. Do you have a picture of what you are talking about with regards to your rig ?

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Amongst Myselves - ambient, landscape and space music
Canon 5Dm2, 450D, 17-40mm EF f4, 70-300mm L, 50mm f1.8 EF, Custom Intervalometer (UM9 and UM12) and MOCON, Meade LXD75 SN10


Fri Jun 13, 2014 9:28 pm
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Joined: Thu Jul 22, 2010 10:10 pm
Posts: 86
Location: Paralowie, South Australia
Post Re: Idler wheels? where to get in Australia or how to make?
Hi Steve,

Great to see another South Aussie on the forum... Okay hopefully this will work,

Here are some images of my Slider so far, it's not as nice as some out there but it runs really smoothly. So far I have my Orion Teletrack just mounted on it like it would for horizontal movement. I do plan on adding either a ball mount or something to change the angle with in the future. It uses 8 x 22mm bearings on it, and made of scrap materials I was able to scrounge up from various places.


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Andrew Wall,
South Australia.
Fri Jun 13, 2014 11:58 pm
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Joined: Thu Jul 22, 2010 10:10 pm
Posts: 86
Location: Paralowie, South Australia
Post Re: Idler wheels? where to get in Australia or how to make?
Hi Steve,

A friend was able to send me the link to the DP assembly instructions so I was able to work out how to go about doing the idler wheels etc.. instead of doing it the way they have done it, I do plan on using bearings for the idlers too. I was able to hack apart my kids roller blades and now have ample bearings to use. Just a quick trip to Bunnings tomorrow for a few small parts and I should have it moving by tomorrow night, if all goes well..

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Andrew Wall,
South Australia.


Sat Jun 14, 2014 2:17 am
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Joined: Wed Nov 25, 2009 1:17 am
Posts: 336
Location: Hindmarsh Valley, South Australia
Post Re: Idler wheels? where to get in Australia or how to make?
Nice piece of work Andrew. Alas, my unit uses tubing which can be a little painful to get straight and have all the bearings contacting for the full 3 metre length.

What are you using to control your unit ?

_________________
Amongst Myselves - ambient, landscape and space music
Canon 5Dm2, 450D, 17-40mm EF f4, 70-300mm L, 50mm f1.8 EF, Custom Intervalometer (UM9 and UM12) and MOCON, Meade LXD75 SN10


Sat Jun 14, 2014 8:23 pm
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Joined: Thu Jul 22, 2010 10:10 pm
Posts: 86
Location: Paralowie, South Australia
Post Re: Idler wheels? where to get in Australia or how to make?
Hi Steve,

I am using a MX2 I bought from someone on this forum, and also have an adapter to go between the Orion Teletrack and MX2. I have just completed one belt holder and now in the process of fabricating the second one. I bought the belt new from Borge's Imaging. I have the bearings and motor in place now, will get pics of it soon. Starting to look like a timelapse rig now.

Any ideas if hot water will help getting the wobble out of the belt?

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Andrew Wall,
South Australia.


Sat Jun 14, 2014 10:40 pm
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Joined: Wed Nov 25, 2009 1:17 am
Posts: 336
Location: Hindmarsh Valley, South Australia
Post Re: Idler wheels? where to get in Australia or how to make?
Wobble in the belt ? Do you mean when the dolly is moving ? or is this belt got buckles in it ?

_________________
Amongst Myselves - ambient, landscape and space music
Canon 5Dm2, 450D, 17-40mm EF f4, 70-300mm L, 50mm f1.8 EF, Custom Intervalometer (UM9 and UM12) and MOCON, Meade LXD75 SN10


Sat Jun 14, 2014 10:52 pm
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Joined: Thu Jul 22, 2010 10:10 pm
Posts: 86
Location: Paralowie, South Australia
Post Re: Idler wheels? where to get in Australia or how to make?
Not buckles as such just looks wobbly from being rolled up, I guess this goes away after a few times out with it?

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Andrew Wall,
South Australia.


Sat Jun 14, 2014 11:09 pm
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Joined: Wed Nov 25, 2009 1:17 am
Posts: 336
Location: Hindmarsh Valley, South Australia
Post Re: Idler wheels? where to get in Australia or how to make?
I suppose see how it goes once you've stretched it on the dolly.

_________________
Amongst Myselves - ambient, landscape and space music
Canon 5Dm2, 450D, 17-40mm EF f4, 70-300mm L, 50mm f1.8 EF, Custom Intervalometer (UM9 and UM12) and MOCON, Meade LXD75 SN10


Sat Jun 14, 2014 11:18 pm
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Joined: Wed Nov 11, 2009 10:45 am
Posts: 1685
Location: Merritt Island, Florida, Estates Unitas
Post Re: Idler wheels? where to get in Australia or how to make?
I make my idlers out of shoulder bolts like these

http://www.mcmaster.com/#catalog/120/3077/=sf6iie
Mine are Alloy Steel Shoulder Screw, 3/8" Diameter x 3/4" Long Shoulder, 5/16"-18 Thread
They are a good replacement for Dynamic Perception Stage Zero idlers. These are much stronger than the original fully threaded ones Dynamic supplies.

I use a short piece cut from this kind of teflon tube as the roller

http://www.mcmaster.com/#catalog/120/3626/=sf6k4a
It is 9/16" OD x 7/16" ID

I use a washer at the top of the teflon tube to keep the belt from walking off.
18-8 Stainless Steel Type A SAE Flat Washer, 3/8" Screw Size, 13/16" OD, .05"-.08" Thick

McMaster takes orders over the internet and ships in case you can't find any of the parts locally. Its pretty basic hardware store stuff.


Sun Jun 15, 2014 10:08 am
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