POTD- PROJECT OF THE DAY: What Did You Make In Your Shop Today?

piper184 said:
Added some gas lift struts to the knee of the mill. They take about 260# of weight off of the lead screw and reduced the crank handle torque to lift the knee by about 40%.
It was an interesting challenge in figuring it all out and then several false starts of different parts until I got it right. The tapered bases were some mystery steel from the scrap bin that seems to some sort of stainless. Non-magnetic and a bugger to machine.
View attachment 515681
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I like it! Doubling up like that saves a ton of room over a single strut!!!
 
@Suzuki4evr

Yes, I believe the "D" stands for "Drawn" as you theorised.

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From what I have picked up from SSROUNDBAR.COM, the chart they have on EN8D shows alternate/comparable steels, which is somewhat illuminating.

Apparently, EN8D is equivelant / comparable to 1040, 1045
 
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GrifterGuru said:
@Suzuki4evr

Yes, I believe the "D" stands for "Drawn" as you theorised.

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From what I have picked up from SSROUNDBAR.COM, the chart they have (hopefully reproduced below) on EN8D shows alternate/comparable steels, which is somewhat illuminating.

EN8D Equivalent Materials

Standard BS DIN IS EN SAE/AISI
EN8D 080A40 CK45 45C8 EN8D 1040, 1045
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I'd like to find an equivalent of 1144 stress proof, or even just plain 1144.

Finding EN1APb (12L14) is hard enough to find in the UK.
 
SouthernChap said:
I'd like to find an equivalent of 1144 stress proof, or even just plain 1144.

Finding EN1APb (12L14) is hard enough to find in the UK.
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@SouthernChap

I take it you know "Pb" is lead right? So you want Leaded EN1A?

Besides, have you not seen this?? Link is more for the seller than the stock.

www.ebay.co.uk

CHEAP Bright Mild Steel EN1A / EN1APb Round Bar Solid Metal Rod - 3mm to 60mm | eBay

Grade: EN1A Pb | EN1A Leaded | 230M07Pb. Grade: EN1A | 230M07. ⌀3mm Bright Mild Steel EN1A Round Solid Bar. ⌀4mm Bright Mild Steel EN1A Round Solid Bar. ⌀5mm Bright Mild Steel EN1A Round Solid Bar. ⌀60mm Bright Mild Steel EN1A Round Solid Bar.
www.ebay.co.uk
 
SouthernChap said:
I'd like to find an equivalent of 1144 stress proof, or even just plain 1144.

Finding EN1APb (12L14) is hard enough to find in the UK.
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Me too. I can buy it here, but I'd like to model it's properties in FreeCAD. For all I know, there's a EU/DIN/UK/?? equivalent in their database, but beats me what it is. I've been searching, but haven't come up with the equivalent. Yes, I can add a material to FreeCAD, but it's better to have a vetted equivalent, rather than the hack that I'd do.

1144 machines like a dream, at least on my lathes. With both HSS and TCGT carbide inserts.
 
@SouthernChap @WobblyHand

A little google-fu comes up with the following, though not sure on the veracity, but it is a starting point..

The European equivalent of 1144 stress proof steel is typically considered to be EN 10088: 44SMn28 under the European standard, which is a steel grade with similar properties to 1144 steel, particularly its high strength and good ductility
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GrifterGuru said:
@SouthernChap

I take it you know "Pb" is lead right? So you want Leaded EN1A?

Besides, have you not seen this?? Link is more for the seller than the stock.

www.ebay.co.uk

CHEAP Bright Mild Steel EN1A / EN1APb Round Bar Solid Metal Rod - 3mm to 60mm | eBay

Grade: EN1A Pb | EN1A Leaded | 230M07Pb. Grade: EN1A | 230M07. ⌀3mm Bright Mild Steel EN1A Round Solid Bar. ⌀4mm Bright Mild Steel EN1A Round Solid Bar. ⌀5mm Bright Mild Steel EN1A Round Solid Bar. ⌀60mm Bright Mild Steel EN1A Round Solid Bar.
www.ebay.co.uk
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Yes, I do know what Pb stands for (I did get an A at Chemistry O Level :grin:).

Oh, I tend not to go to eBay for stock. Maybe I should.

Still and all, you haven't found me a source for 1144 or an EN# equivalent. :grin::p

Oh apparently you have.:grin::):eagerness:
 
Firstram said:
I like it! Doubling up like that saves a ton of room over a single strut!!!
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Yup, that's why I did it that way.

Couldn't find any struts that had enough travel that weren't so long that they wouldn't fit. Found one that was close but it was nearly $300. These are standard off the shelf units from McMaster-Carr and were only $25 each. The only real issue I ran into was the studs that were spot welded on the end were not perfectly centered. Of course I didn't discover that until I was ready for final assembly as the one I used for test fitting was perfect.
 
piper184 said:
Yup, that's why I did it that way.

Couldn't find any struts that had enough travel that weren't so long that they wouldn't fit. Found one that was close but it was nearly $300. These are standard off the shelf units from McMaster-Carr and were only $25 each. The only real issue I ran into was the studs that were spot welded on the end were not perfectly centered. Of course I didn't discover that until I was ready for final assembly as the one I used for test fitting was perfect.
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I think you mentioned they were 120 lb struts? How did you couple them together, I can’t quite tell in that backlit picture.
 
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