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Search took 0.00 seconds. Search: Posts Made By: Gerald D
Forum: 40. Z-Slide Fri 12 February 2010, 12:01
Replies: 54
Views: 81,337
Posted By Gerald D
That is far too short for the z-axis.

That is far too short for the z-axis.
Forum: 40. Z-Slide Tue 29 September 2009, 20:41
Replies: 54
Views: 81,337
Posted By Gerald D
The gas spring naturally wants to extend/lengthen...

The gas spring naturally wants to extend/lengthen itself. The top of the spring is connected to the z-axis/spindle. The bottom of the spring is anchored/static.
Forum: 40. Z-Slide Thu 18 December 2008, 04:43
Replies: 54
Views: 81,337
Posted By Gerald D
Francis, see the last sentence & link in post #28...

Francis, see the last sentence & link in post #28 above - that's where I tried to mention the garage door type spring/cable/pulley system.
Forum: 40. Z-Slide Thu 11 December 2008, 22:05
Replies: 54
Views: 81,337
Posted By Gerald D
http://industrialbalancer.com/ - that looks about...

http://industrialbalancer.com/ - that looks about right!
Forum: 40. Z-Slide Wed 03 December 2008, 22:31
Replies: 54
Views: 81,337
Posted By Gerald D
Kevin, I have havn't given any more thought to...

Kevin, I have havn't given any more thought to wire coil springs further to the sketches in post #1 right at the top of this thread. At that point I was simply talking a "tower" (the red part) on the...
Forum: 40. Z-Slide Tue 01 July 2008, 01:23
Replies: 54
Views: 81,337
Posted By Gerald D
David, I think you will be okay. There is a small...

David, I think you will be okay. There is a small chance that you will need to add some mass to balance the slide if you use that 9416K54. If you go to a spindle one day, you can remove that mass.
Forum: 40. Z-Slide Tue 01 July 2008, 00:01
Replies: 54
Views: 81,337
Posted By Gerald D
Have checked some notes and found that I did...

Have checked some notes and found that I did check the design against the McMaster 9416K54.
Forum: 40. Z-Slide Mon 30 June 2008, 20:51
Replies: 54
Views: 81,337
Posted By Gerald D
The stroke of the rack and the slide plate is...

The stroke of the rack and the slide plate is 350mm [14"]. You need a spring that matches this.

9416K54 looks like the nearest McMaster spring. I don't know if anyone has tried it yet.
Forum: 40. Z-Slide Thu 12 June 2008, 06:43
Replies: 54
Views: 81,337
Posted By Gerald D
I am getting slightly surprised that our first...

I am getting slightly surprised that our first gas spring is still working fine after 2 years - was originally thinking that I would be lucky for a year at a time.
Forum: 40. Z-Slide Thu 12 June 2008, 06:42
Replies: 54
Views: 81,337
Posted By Gerald D
In principle they look okay. The function should...

In principle they look okay. The function should be as good as the non-adjustable type.
Forum: 40. Z-Slide Sun 01 June 2008, 05:10
Replies: 54
Views: 81,337
Posted By Gerald D
Yes, that is nearly correct. A gas spring pushes...

Yes, that is nearly correct. A gas spring pushes with a nearly constant force (quite a lot of 'stiction'/friction)
Forum: 40. Z-Slide Wed 10 October 2007, 00:56
Replies: 54
Views: 81,337
Posted By Gerald D
If I havn't said so before . . . . Do not...

If I havn't said so before . . . .

Do not tighten the nuts at the ends of the strut after installation. The strut's own force keeps it in place, the nuts are actually not needed at all. If you...
Forum: 40. Z-Slide Wed 10 October 2007, 00:47
Replies: 54
Views: 81,337
Posted By Gerald D
The new drawings are based on the 9416K2 from...

The new drawings are based on the 9416K2 from McMaster:

456
Forum: 40. Z-Slide Tue 09 October 2007, 11:50
Replies: 54
Views: 81,337
Posted By Gerald D
The MechMate z-slide can accommodate all the...

The MechMate z-slide can accommodate all the following McMaster-Carr struts in terms of outer diameter:

455

The upper mounting, to the rect. tube of the slide, is the thing to be worked out ....
Forum: 40. Z-Slide Tue 09 October 2007, 11:24
Replies: 54
Views: 81,337
Posted By Gerald D
It is amazing how often a technical problem can...

It is amazing how often a technical problem can be solved by drilling a hole!
Forum: 40. Z-Slide Tue 09 October 2007, 09:17
Replies: 54
Views: 81,337
Posted By Gerald D
Art, if the gas shock worked fine for the short...

Art, if the gas shock worked fine for the short stroke, why don't you get a longer gas shock?

Hi Normand!
Forum: 40. Z-Slide Fri 14 September 2007, 09:08
Replies: 54
Views: 81,337
Posted By Gerald D
Weight balancing springs - Gaslifts and coiled wire

I deleted the original version of this thread by mistake - here is a re-creation:

When the stepper motor is switched off (the Gecko's power is switched off) it has some resistance or friction...
Showing results 1 to 17 of 17

 
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