NutBlock Alternatives

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NutBlock Alternatives

Postby HarveyMoon » Wed Aug 08, 2012 7:16 pm

I was having some difficulty finding the NutBlock when I was sourcing parts. Now it is the only thing I do not have and I am looking for alternative solutions.

I do not have access to a drillpress or delrin at this point so I am considering a simple 3d printed version.

When I built my reprap, it had a cool way of combining the printed part with a M8 nut for the threaded rod.
Image

Has anyone used this solution for the NutBlock? does anyone know another simple solution for this part?
HarveyMoon
 
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Re: NutBlock Alternatives

Postby tango282 » Wed Aug 08, 2012 9:25 pm

Well I heard that if you accidently light one of the kit delrin blocks on fire (which burns almost invisibly, sort of like methane, you will only notice little tiny bubbles moving on the surface) You might be able to go to the local hardware store (assuming you don't already have a printer ;) and come up with something like this..
IMG_1842.JPG


I just need to slightly bore the holes of the collar out.....I don't know why it wouldn't work, I have not actually tried it yet. (I just picked up the parts Monday but have been distracted by my never ending timing belt change on my 4runner. 218ft/lbs of torque on a crankshaft bolt=finding out NO ONE in town has more than a grade five bolt in stock....which of course I need to wrench one of the pulley's off..........being a builder newb is sooooo much fun /s well actually it is kinda fun...


P.S. background brought back for the sole pleasure of Bart
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Re: NutBlock Alternatives

Postby orcinus » Thu Aug 09, 2012 1:56 am

tango282 wrote:P.S. background brought back for the sole pleasure of Bart


All glory to the Hypnotoad!

Image
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Re: NutBlock Alternatives

Postby tango282 » Thu Aug 09, 2012 2:33 am

All glory to the hypnotoad!............................Good news everyone! I lied when I said there would be no nut blocks.

Nice one @Orcinus if only we could die from snu snu :o
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Re: NutBlock Alternatives

Postby HarveyMoon » Thu Aug 09, 2012 3:53 am

Here is what I came up with. I havent tested it yet, in fact it is printing just now.

any thoughts?

Image
Last edited by HarveyMoon on Thu Aug 09, 2012 11:07 pm, edited 1 time in total.
HarveyMoon
 
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Re: NutBlock Alternatives

Postby HarveyMoon » Thu Aug 09, 2012 7:56 am

This is what I ended up with after changes.

Im happy, not thinking about backlash at all yet.... maybe I should add two and a spring like on the prusa.

or maybe the weight of the gantry will make it ok... Thoughts?

Image
Last edited by HarveyMoon on Thu Aug 09, 2012 11:04 pm, edited 1 time in total.
HarveyMoon
 
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Re: NutBlock Alternatives

Postby HarveyMoon » Thu Aug 09, 2012 6:28 pm

Here is some OPEN SCAD code for anyone who wants it

Code: Select all
difference(){
union(){
translate([0,0,6.5]){
cube([23,23,15], center=true);
}
}
translate([0,7.5,5]) rotate([0,90,0])cylinder(r=2.5, h=40, center=true, $fn=20);
translate([0,-7.5,5]) rotate([0,90,0])cylinder(r=2.5, h=40, center=true, $fn=20);
union(){
   translate([0,0,1.5]) cylinder(r=6.5, h=35, $fn=25, center=true);
   translate([0,0,13]) rotate([0,0,30]) union(){
                     cube([14.8,8.8,10.3], center=true);
   rotate([0,0,60]) cube([14.8,8.8,10.3], center=true);
   rotate([0,0,-60]) cube([14.8,8.8,10.3], center=true);
   }
}
}
HarveyMoon
 
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Re: NutBlock Alternatives

Postby tango282 » Thu Aug 09, 2012 7:51 pm

@HarveyMoon

FYI-Your photos did not come through...when I try to view them by opening up a new tab etc I get a link to a dropbox account. I suspect that the problem is not just related to my browser???
tango282
 
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Re: NutBlock Alternatives

Postby HarveyMoon » Thu Aug 09, 2012 11:08 pm

tango282 wrote:@HarveyMoon

FYI-Your photos did not come through...when I try to view them by opening up a new tab etc I get a link to a dropbox account. I suspect that the problem is not just related to my browser???



Let me know if it is fixed now
HarveyMoon
 
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Re: NutBlock Alternatives

Postby tango282 » Fri Aug 10, 2012 4:56 am

Yes, all fixed. Thank you.
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