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Replacement ALuminium X-Rib And X-Plate...

Posted by Davek0974 
Replacement ALuminium X-Rib And X-Plate...
March 24, 2014 07:01AM
Following on from the excellent upgrade for the bed support, I put requests out for having the acrylic x-rib and plate cut from 5mm aluminium.

This is probably not going to work as the lowest I can supply both parts for would be around £90 !

It will likely be cheaper for laser cutting and I will get prices today.

I was pretty surprised at the price though.


Another RS Ormerod Mk1 meets the world smiling smiley

Also supplier of...
CNC Machined Mk1 aluminium bed support plates - no more sagging heat bed. [ddmetalproducts.co.uk]
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods - no more bendy acrylic. [ddmetalproducts.co.uk]
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
Re: Replacement ALuminium X-Rib And X-Plate...
March 24, 2014 01:05PM
Hi Dave,
let me know the developments...

Thanks!

Dario


Ormerod 187
Firmware Electronics: Duet 0.6
Firmware Version:1.18.1 (2017-04-07)
Web Interface Version:1.15a
Slic3r 1.2.9a and Simplify3D 4.0.0
[www.dropbox.com]
Re: Replacement ALuminium X-Rib And X-Plate...
March 24, 2014 01:38PM
It should be nowhere near that price. I run a small business laser cutting parts for Model Engineers, I cut out the two y axis end plates in 5mm Aluminium for £7 each, The acrylic cracked. I also made some 1mm shims in steel as the ground steel bars were too long for the aluminium extrusion. At the moment I cannot get the Z axis to zero consistently, looks like the bed is not parallel to the X axis. Anyone else had that problem?

Malcolm
Re: Replacement ALuminium X-Rib And X-Plate...
March 24, 2014 02:59PM
Quote
Laser Mal
At the moment I cannot get the Z axis to zero consistently, looks like the bed is not parallel to the X axis. Anyone else had that problem?

IMO these are the main steps needed to get the bed level:

1. Replace the MDF bed support with something better such as this one [forums.reprap.org] and add bed-levelling screws.

2. Make sure that the plywood rib sits securely on the linear bearing on the front y-rod. Some users have had to cable-tie the rib to the bearing.

3. Make sure that the acrylic x-plate is not twisted, otherwise the head sag (and hence nozzle height) will vary with x position.

4. Make sure there is no twist between the two y-rods, otherwise the x-angle of the bed will vary with y position.

The bed compensation (if you can get it working reliably) can cope with small errors, but IMO it's best to get the bed stable and as level as possible first.



Large delta printer [miscsolutions.wordpress.com], Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
Re: Replacement ALuminium X-Rib And X-Plate...
March 24, 2014 03:28PM
Quote
Laser Mal
It should be nowhere near that price. I run a small business laser cutting parts for Model Engineers, I cut out the two y axis end plates in 5mm Aluminium for £7 each, The acrylic cracked. I also made some 1mm shims in steel as the ground steel bars were too long for the aluminium extrusion. At the moment I cannot get the Z axis to zero consistently, looks like the bed is not parallel to the X axis. Anyone else had that problem?

Malcolm

I did think it was very high, maybe they just don't need the work at present?

Should have laser cut prices tomorrow hopefully.

If you still have the mdf bed support then the z axis will not zero nicely, it moves and twists a lot. The aluminium bed is a revelation, I have printed three top notch jobs since fitting one and have not made an adjustment yet, just zero the head and print, I'm not using bed compensation either.


Another RS Ormerod Mk1 meets the world smiling smiley

Also supplier of...
CNC Machined Mk1 aluminium bed support plates - no more sagging heat bed. [ddmetalproducts.co.uk]
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods - no more bendy acrylic. [ddmetalproducts.co.uk]
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
Re: Replacement ALuminium X-Rib And X-Plate...
March 24, 2014 06:05PM
Agreed

It's made a huge difference, just levelled once and it's been rock solid since smiling bouncing smiley

Hopefully the laser cut prices will be a tad more affordable...


Stu
Re: Replacement ALuminium X-Rib And X-Plate...
March 26, 2014 05:47AM
Good news, I have some prices now for these parts...

Would be laser-cut, screw assembly not tabs as per acrylic items.

5mm aluminium with a grained finish as the bed plates.

Supplied with 6 M3 screws for assembly and self-adhesive stainless steel tape for the bearing running area for use if desired.

Cost for the pair would be £40 plus p&p at cost depending on weight / destination.

Is there any interest in pursuing this project??

Let me know.


Dave

Edited 3 time(s). Last edit at 03/26/2014 11:34AM by Davek0974.


Another RS Ormerod Mk1 meets the world smiling smiley

Also supplier of...
CNC Machined Mk1 aluminium bed support plates - no more sagging heat bed. [ddmetalproducts.co.uk]
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods - no more bendy acrylic. [ddmetalproducts.co.uk]
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
Re: Replacement ALuminium X-Rib And X-Plate...
March 26, 2014 06:45PM
Hi Dave,

You can put me down for one.

Pete.
Re: Replacement ALuminium X-Rib And X-Plate...
March 26, 2014 07:15PM
Hi Dave

Thank You for doing this, put me down for two

Erik
Re: Replacement ALuminium X-Rib And X-Plate...
March 26, 2014 07:21PM
Hi Dave

Thank You for doing this, put me down for two and a coupel of bed support.

jan


XB70
Re: Replacement ALuminium X-Rib And X-Plate...
March 26, 2014 07:53PM
Hi Dave,

Thanks for your fantastic efforts, If you go ahead I will take 2 sets + postage to Australia.

Regards,

Bruce
Re: Replacement ALuminium X-Rib And X-Plate...
March 26, 2014 08:37PM
Hi Dave

Put me down for a set!

Dave
Re: Replacement ALuminium X-Rib And X-Plate...
March 26, 2014 08:42PM
hot smiley
Put me in the list..

Dario
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 01:31AM
Please put me down for one as well.Thanks in advance for the effort!
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 03:27AM
That's excellent I think we should be good to go pretty soon then.

Thanks for your interest.


Another RS Ormerod Mk1 meets the world smiling smiley

Also supplier of...
CNC Machined Mk1 aluminium bed support plates - no more sagging heat bed. [ddmetalproducts.co.uk]
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods - no more bendy acrylic. [ddmetalproducts.co.uk]
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 06:10AM
Hi Dave

Thanks for doing this and put me down for two please.
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 06:14AM
Hi Dave

Put me down for a set too. Many Thanks.

Edited 1 time(s). Last edit at 03/27/2014 06:14AM by JDNicolson.
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 06:35AM
Cheers Dave

One for me please..

Stu
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 06:36AM
How would the weight compare to the acrylic parts?

If the aluminium is heavier would the extra weight put more strain on the Z axis screw/nut?
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 06:37AM
Please add me down for 1 set.
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 06:47AM
Quote
PaulHam
How would the weight compare to the acrylic parts?

If the aluminium is heavier would the extra weight put more strain on the Z axis screw/nut?

It would be slightly more but with the increased z-nuts most are using, I dont think it will be an issue, some have also changed to trapezoidal screw and there would be no issue at all for them.

What we dont want to do is fit lightening holes as that will compromise rigidity i feel.


Another RS Ormerod Mk1 meets the world smiling smiley

Also supplier of...
CNC Machined Mk1 aluminium bed support plates - no more sagging heat bed. [ddmetalproducts.co.uk]
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods - no more bendy acrylic. [ddmetalproducts.co.uk]
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 07:31AM
Hi Dave

Yes, please put me down for a set too.

Cheers.


Ormerod #007 (shaken but not stirred!)
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 08:03AM
Quote
Davek0974
What we dont want to do is fit lightening holes as that will compromise rigidity i feel.

Sensibly done, lightening holes won't have a huge effect on rigidity IMV.

However, I have the trapezoidal leadscrew on Z, so I'm not fussed either way cool smiley

Dave
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 08:30AM
I don't think rigidity is going to be an issue here even if lightening holes were added. The existing acrylic scheme works by using the rib and the smooth rod to provide cross rigidity. The basic rigidity of aluminum compared to acrylic is so much higher that you would have to seriously overdo lightening to compromise it.

Having said that I run and plan to continue to run with no software z compensation so that the loading is less of a wear issue providing the stepper can heave the axis up between layers.
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 08:53AM
Yes, with the new bed support, I do not use compensation either, It's not like it will 2kg heavier, just grams really.

Reasonable calculations show it to be twice as heavy, around 330gm for the assembly.

I doubt losing a few grams by adding holes is going to make too much difference, the rib can be holed in 4 places but the plate is not so easy.

Probably safest to go with the solid items, less risk of incurring warp during cutting as well.

Edited 1 time(s). Last edit at 03/27/2014 10:11AM by Davek0974.


Another RS Ormerod Mk1 meets the world smiling smiley

Also supplier of...
CNC Machined Mk1 aluminium bed support plates - no more sagging heat bed. [ddmetalproducts.co.uk]
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods - no more bendy acrylic. [ddmetalproducts.co.uk]
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 11:02AM
Sounds good to me. 330g is what I had reckoned compared with about 135g for the acrylic. The steel rod is probably around 280g and the extruder motor assembly is 260g. The x motor must be similar. I don't know about the hot end but guess 150g and then there are the printed parts. So I think there is at least 1000g originally and the increase is about 20%. That's less than adding one more extruder for those with ambitions to get to 3 and I think the metal version would be a better basis for that anyway.
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 12:29PM
Hi Dave,

Please put me down for one complete set of two y axis end plates and x-rib assembly

Thank you for your efforts
Paul


appjaws - Ormerod 1, core XYUV Duet wifi, duex5
firmware 1.21 Web Server 1.21 Web Interface 1.21
OpenSCAD version 2016.02.09 (git 9950e6a)
slic3r-1.38.5-prusa3d and/or Simplify3D 4.0.0
Re: Replacement ALuminium X-Rib And X-Plate...
March 27, 2014 03:13PM
Quote
appjaws1
Hi Dave,

Please put me down for one complete set of two y axis end plates and x-rib assembly

Thank you for your efforts
Paul

Thanks, request noted, but please note that I'm not offering the y end plates (unless of course there is a good demand) as they seem adequate in acrylic, pretty benign parts I think.


Another RS Ormerod Mk1 meets the world smiling smiley

Also supplier of...
CNC Machined Mk1 aluminium bed support plates - no more sagging heat bed. [ddmetalproducts.co.uk]
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods - no more bendy acrylic. [ddmetalproducts.co.uk]
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
Re: Replacement ALuminium X-Rib And X-Plate...
March 28, 2014 06:19AM
Order has been placed, should be ready next week. smiling smiley


Can we get a consensus on screw types please, the rib is secured to the plate with 6 M3 screws, I'm not sure if these can be cap-head (preferred) or need to be countersunk heads??

One of them is the Z axis runner bearing bracket mount so that screw is already supplied, but the other 5 are not on the acrylic version.

Edited 1 time(s). Last edit at 03/28/2014 06:19AM by Davek0974.


Another RS Ormerod Mk1 meets the world smiling smiley

Also supplier of...
CNC Machined Mk1 aluminium bed support plates - no more sagging heat bed. [ddmetalproducts.co.uk]
CNC machined X-plates and ribs for Mk1 & Mk2 Ormerods - no more bendy acrylic. [ddmetalproducts.co.uk]
CNC machined bed support arms for the Mk2 Ormerod.
Dual Hot-End heatsink blocks.
Re: Replacement ALuminium X-Rib And X-Plate...
March 28, 2014 09:15AM
hmm, I'm late again yawning smiley
Please let me know if/when there will be another batch.

Enjoy you new parts ;-)
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