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Search took 0.00 seconds. Search: Posts Made By: Gerald D

Forum: Rails & Rollers

Sun 01 August 2010, 23:26

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

Yes, it is still valid

Yes, it is still valid

Forum: Rails & Rollers

Wed 30 December 2009, 23:44

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

Thanks for the update Marius.

Thanks for the update Marius.

Forum: Rails & Rollers

Wed 30 December 2009, 10:48

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

Brass (or bronze) will also work.

Brass (or bronze) will also work.

Forum: Rails & Rollers

Wed 08 April 2009, 06:04

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

Marius, that is great news on the Ertalyte...

Marius, that is great news on the Ertalyte (http://en.wikipedia.org/wiki/Polyethylene_terephthalate) wheels.

Kobus's machine has direct drive motors, which makes a machine sound quite rough. I...

Forum: Rails & Rollers

Fri 27 February 2009, 21:05

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

Curious about the life of those Ertalyte...

Curious about the life of those Ertalyte (http://en.wikipedia.org/wiki/Polyethylene_terephthalate) wheels - sometimes I wonder if we can dump the wheels and replace them with solid plastic slide...

Forum: Rails & Rollers

Sun 05 October 2008, 10:28

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

You took that first pic at 6.44am on a Sunday??...

You took that first pic at 6.44am on a Sunday?? Did the missus make you sleep in the garage again?? :D

That wheel will give you lots of good service. (havn't worn out our mild steel experimental...

Forum: Rails & Rollers

Tue 29 January 2008, 03:03

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

No, a plastic bush will always be a bit flexible...

No, a plastic bush will always be a bit flexible side to side, given that our wheel is only 16mm wide.

I have some spare "tyres", as per the pics right at the top - want to make me an offer via...

Forum: Rails & Rollers

Wed 23 January 2008, 22:25

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

Making the wheel 3mm fatter (1.5mm per side) will...

Making the wheel 3mm fatter (1.5mm per side) will chew up the 2mm clearance left for other inaccuracies during the gantry welding. Rather move the bearings off-center if you are re-designing the...

Forum: Rails & Rollers

Wed 23 January 2008, 12:37

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

The design was since modified to be fully...

The design was since modified to be fully interchangeable the "Size 3" produced by Hepco, Superior, YiTong, BWC, etc. The V was moved to the center and the diameter slightly increased.

From this...

Forum: Rails & Rollers

Mon 07 January 2008, 05:37

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

Tom, which is easier to replace - the rail or the...

Tom, which is easier to replace - the rail or the roller? Which one do you want to wear out first? :)

The "hard" rollers with integrated bearings are a marketing ploy I think. Those guys couldn't...

Forum: Rails & Rollers

Mon 07 January 2008, 04:11

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

Tom, suggest you make them of cheap steel, or...

Tom, suggest you make them of cheap steel, or bronze, and replace them if they wear out. Do not bother to harden them. My experimental set of "soft" rollers is still quite happy.

I would spend a...

Forum: Rails & Rollers

Mon 07 January 2008, 02:24

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

Drawing M1 20 121 T (Rev B) Or you can...

Drawing M1 20 121 T (Rev B)

Or you can import the rollers from www.superiorbearing.com (http://www.superiorbearing.com)

Forum: Rails & Rollers

Mon 07 January 2008, 02:21

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

That play has no effect. Remember also that you...

That play has no effect. Remember also that you have another 8mm [5/16"] bolt through the bush with with similar play - again no bad effects. It is the bush head that does the serious gripping....

Forum: Rails & Rollers

Fri 21 September 2007, 22:27

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

Leandro, read the drawings, all the information...

Leandro, read the drawings, all the information is there.

Forum: Rails & Rollers

Sat 08 September 2007, 01:25

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

I have forgotten about that test already, and I...

I have forgotten about that test already, and I should go and have a good look at the machine again. (For those that don't know it, my day job is no longer located near the machines, so I seldom get...

Forum: Rails & Rollers

Tue 24 July 2007, 01:01

Replies: 56

Make your own V-Rollers if too expensive in your country

Views: 82,358

Posted By Gerald D

Reported this morning that the Loctite had come...

Reported this morning that the Loctite had come loose on the Dec 2005 rollers. Should have used genuine Loctite 638 (http://65.213.72.112/tds5/docs/638-EN.pdf) instead of this "copy...

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