How to increase Z-Axis range?

WillAdams
Posts: 8489
Joined: Mon Apr 09, 2012 6:11 pm
Location: Pennsylvania --- south of the Turnpike, East of US-15
Contact:

Re: How to increase Z-Axis range?

Post by WillAdams » Tue Oct 08, 2013 10:10 am

I wonder if a better option wouldn't be putting Makerslide to either side of the rod surrounding it.
Shapeoko 3XL #0006 w/Makita RT0701 Router w/0.125″ and ¼″ Elaire precision collets
Nomad 883 Pro #596 (bamboo)

cvoinescu
Posts: 4442
Joined: Thu Jul 19, 2012 6:50 pm
Location: Camberley, UK
Contact:

Re: How to increase Z-Axis range?

Post by cvoinescu » Tue Oct 08, 2013 12:01 pm

It wouldn't reduce the flex in the YZ plane all that much, would make almost no difference in the XZ plane, but it would improve rigidity in the XY plane. Unfortunately, it's the YZ that's the worst.

A single rail with wheels further apart vertically, say twice the distance, improves the rigidity in the YZ plane more than doubling the rail does, and improves it in the XZ plane too. It makes no difference in the XY plane.

Two Z rails with wheels far apart seem to be the ticket. :)
Proud owner of ShapeOko #709, eShapeOko #0, and of store.amberspyglass.co.uk

etxbkst
Posts: 216
Joined: Mon Sep 02, 2013 7:54 am

Re: How to increase Z-Axis range?

Post by etxbkst » Tue Oct 08, 2013 5:25 pm

Z axis _2.jpg
Z axis _2.jpg (397.77 KiB) Viewed 3609 times
I had a similar thought to what Will proposed, but with smooth rods and v slot.

trnr
Posts: 22
Joined: Mon Oct 07, 2013 9:50 am

Re: How to increase Z-Axis range?

Post by trnr » Wed Nov 13, 2013 4:50 am

Has anyone had any luck increasing there z-axis range yet? I'm hoping to do it with my shapeoko 2 when i get it..

monkey123
Posts: 35
Joined: Sun Sep 08, 2013 3:36 am

Re: How to increase Z-Axis range?

Post by monkey123 » Thu Nov 21, 2013 2:55 am

trnr wrote:Has anyone had any luck increasing there z-axis range yet? I'm hoping to do it with my shapeoko 2 when i get it..
Yes, just finished my shapeoko (pretty much a shapeoko 2). All that it took was 1) a longer Z-axis makerslide and 2) a longer lead screw to fit the makerslide length. With the version 2 design, the makerslide stays put and the carriage plate moves up and down on its own, if that makes sense. Works great.

trnr
Posts: 22
Joined: Mon Oct 07, 2013 9:50 am

Re: How to increase Z-Axis range?

Post by trnr » Thu Nov 21, 2013 4:49 am

cool! what is the Z axis build area now? any photos?

WillAdams
Posts: 8489
Joined: Mon Apr 09, 2012 6:11 pm
Location: Pennsylvania --- south of the Turnpike, East of US-15
Contact:

Re: How to increase Z-Axis range?

Post by WillAdams » Thu Nov 21, 2013 10:52 am

monkey123 wrote:Yes, just finished my shapeoko (pretty much a shapeoko 2). All that it took was 1) a longer Z-axis makerslide and 2) a longer lead screw to fit the makerslide length. With the version 2 design, the makerslide stays put and the carriage plate moves up and down on its own, if that makes sense. Works great.
Excellent!

I addad a note in the wiki, but agree w/ trnr that a full report/ photo would be most welcome.
Shapeoko 3XL #0006 w/Makita RT0701 Router w/0.125″ and ¼″ Elaire precision collets
Nomad 883 Pro #596 (bamboo)

monkey123
Posts: 35
Joined: Sun Sep 08, 2013 3:36 am

Re: How to increase Z-Axis range?

Post by monkey123 » Thu Nov 21, 2013 11:58 pm

I think I got the Z-axis range up to as much as 8 inches or so. I needed at least 5".

I'm still trying to get things tuned and tested well. I will be able to post photos soon.

monkey123
Posts: 35
Joined: Sun Sep 08, 2013 3:36 am

Re: How to increase Z-Axis range?

Post by monkey123 » Sat Nov 23, 2013 5:54 am

Here are the pics. All I changed was a longer ACME lead screw and longer piece of makerslide. Measuring right around 5.5" of Z clearance with a bit installed, and as seen in the pictures I could obtain another 2 or 3 inches if the DW660 would not hit the motor mount block. I'm sure there is a viable solution but all I need is those 5 inches.

I'm using the standard makerslide carriage plate. I had to drill a couple new holes in it (even though it already has a million holes) to get the mounts to line up properly. Perhaps when the official Shapeoko 2 is released I will upgrade to the fancy new plate which isn't as wide, and maybe the new motor mount plates.
IMG_20131122_135309.jpg
IMG_20131122_135309.jpg (321.25 KiB) Viewed 3432 times
IMG_20131122_135341.jpg
IMG_20131122_135341.jpg (317.6 KiB) Viewed 3432 times
IMG_20131122_135405.jpg
IMG_20131122_135405.jpg (474.71 KiB) Viewed 3432 times

Improbable Construct
Posts: 997
Joined: Tue Apr 10, 2012 3:21 am
Location: Fairhope, AL
Contact:

Re: How to increase Z-Axis range?

Post by Improbable Construct » Sun Nov 24, 2013 12:33 am

You really need that bottom bearing block.
Otherwise the whole Z axis is only held on by the clamping force of the coupler.
I have some new DW660 mounts and a modified bottom bearing block that work together to allow full movement of the Z axis.
PM me for details.
Shapeoko #Classified some of the bolts may be original parts.
Shapeoko 1 # ???? Stainless plates, still in the box.
Shapeoko 2 # 3926 not stock
Shapeoko 3 # 0003
Store:
http://ImprobableConstruct.com
Twitter:
https://twitter.com/ImprblConstruct

Post Reply