8 mm Rod: Difference between revisions

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=Precision CNC Machine Applications=
From 3D printing to more precision
*Zinc galvanized rods don't rust, but may be rough? McMaster $9/6 feet - [https://www.mcmaster.com/catalog/126/3927/steel/zinc-galvanized-low-carbon-steel-rods/]
=Sourcing=
Look up Thomas Register - [https://www.thomasnet.com/nsearch.html?cov=NA&what=ground+metric+rods&heading=68710250&searchterm=ground+metric+rods&searchsource=https%3A%2F%2Fwww.thomasnet.com%2Fsearch.html]
==USA==
*Stainless - [https://www.metricmetal.com/product/stainless-steel/round-bar-stainless-steel/stainless-steel-round-bar-17-4ph-tgp/]
*Metalbythefoot - 5/16 hot rolled is $3 for 10 feet at Metalbythefoot. $7.50 for 1016 cold rolled. $16 for 304. All 5/16", not 8 mm. McMaster is $21 for 10 feet of 304, 5/16". 10' of 12L14 is $10 for 3/8". Want to consider moving to larger rod. About 2x less expensive than McMaster - summary: no more McMaster rods. When it comes to local sourcing, 8 mm is simply not an option.
*Get quotes on rod.
==China 2017==
*2017 year end - $2.6/ft for good stuff. [[File:rodquote.png|300px]]
*More 2017 - $1.75/meter,  but shipping is almost twice that. This is chrome plated but soft rod. $1.5/ft fo soft stuff. [[File:softrod.png|300px]]
*$3/meter for chrome plated rods including sea freight, based on a 1 ton minimum order- $1/ft in bulk for good stuff. [[File:aimachinery.png|300px]]
==Consumer==
*$4/foot from Aliexpress - [https://www.aliexpress.com/item/32788015119.html?spm=a2g0o.productlist.0.0.e97fc46cMtEEgo&algo_pvid=443dd30e-3346-4528-a3f1-d8b224437747&algo_expid=443dd30e-3346-4528-a3f1-d8b224437747-10&btsid=38171d5f-df3e-4d42-9410-f98e09738859&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_52]
*$4.6/foot on amazon - [https://www.amazon.com/Hardened-Chrome-Linear-Motion-Shafts/dp/B01LXAZFKZ/ref=pd_sbs_328_1/131-6051377-0523135?_encoding=UTF8&pd_rd_i=B01LXAZFKZ&pd_rd_r=deb1f23e-de7c-4fc5-964a-2492541e8e8d&pd_rd_w=VT6WM&pd_rd_wg=BCx8O&pf_rd_p=d66372fe-68a6-48a3-90ec-41d7f64212be&pf_rd_r=SN7CEF6XP6P8W1ETGREW&psc=1&refRID=SN7CEF6XP6P8W1ETGREW]
*$10 for 1 meter - Folgertech - [https://folgertech.com/collections/linear-rods/products/8mm-x-1-meter-precision-chromed-rod-for-reprap-rostock-prusa-3d-printer-cnc-o1]
*Specifications included - [https://www.ebay.com/itm/PDTech-8mm-dia-hardened-steel-linear-bearing-rod-chrome-custom-cut-USA-ship/252965993142?var=551998082180&hash=item3ae5f2bab6%3Am%3AmlLVkkbmF1VXZYG83cUmerQ%3Asc%3AUSPSPriority%2164469%21US%21-1&_sacat=0&_nkw=8+mm+chrome+rod&_from=R40&rt=nc&_trksid=m570.l1313]. $7.10 for 355 mm
*Specifications included - [https://www.ebay.com/itm/PDTech-8mm-dia-hardened-steel-linear-bearing-rod-chrome-custom-cut-USA-ship/252965993142?var=551998082180&hash=item3ae5f2bab6%3Am%3AmlLVkkbmF1VXZYG83cUmerQ%3Asc%3AUSPSPriority%2164469%21US%21-1&_sacat=0&_nkw=8+mm+chrome+rod&_from=R40&rt=nc&_trksid=m570.l1313]. $7.10 for 355 mm
*How about less hard rod and plastic bearings? See about IGUS plastic bearings - [https://toms3d.org/2016/06/07/should-you-be-using-igus-polymer-bushings/]
*How about less hard rod and plastic bearings? See about IGUS plastic bearings - [https://toms3d.org/2016/06/07/should-you-be-using-igus-polymer-bushings/]
*Igus - $8/bearing - [https://www.amazon.com/Igus-RJM-01-08-DryLin-Plastic-Bearing/dp/B00QZ7XPGI/ref=sr_1_3?s=industrial&ie=UTF8&qid=1532607437&sr=1-3&refinements=p_4%3AIgus]
*Reddit thread - no consensus - [https://www.reddit.com/r/Reprap/comments/5l77bb/alright_so_whats_the_truth_about_igus_bushings/]
*Igus external bearing dimensions are not the same - [https://www.reddit.com/r/voroncorexy/comments/51yc6p/anyone_tried_igus_bearings/d7g60lw/]
*This reddit includes comments on Lulzbot rods - [https://www.reddit.com/r/3Dprinting/comments/56ok9x/upgraded_to_igus_bushings_made_things_worse/]
*Press fit vs non-press fit IGUS - [https://www.reddit.com/r/voroncorexy/comments/51yc6p/anyone_tried_igus_bearings/d7g60lw/]
*Drylin from Folgertech - $1.25 - [https://folgertech.com/collections/bearings/products/igus-rj4jp-01-08-8mm-linear-bearing-to-replace-lm8uu]
*8 mm oil impregnated bushings - [https://www.mcmaster.com/#oil-impregnated-bushings/=1dvri18]
=Shipping=
*2020 - $100 for 60 rods from McMaster to OSE headquarters. [[File:rodship.png|100px]]

Latest revision as of 17:44, 8 July 2020

Precision CNC Machine Applications

From 3D printing to more precision

  • Zinc galvanized rods don't rust, but may be rough? McMaster $9/6 feet - [1]

Sourcing

Look up Thomas Register - [2]

USA

  • Stainless - [3]
  • Metalbythefoot - 5/16 hot rolled is $3 for 10 feet at Metalbythefoot. $7.50 for 1016 cold rolled. $16 for 304. All 5/16", not 8 mm. McMaster is $21 for 10 feet of 304, 5/16". 10' of 12L14 is $10 for 3/8". Want to consider moving to larger rod. About 2x less expensive than McMaster - summary: no more McMaster rods. When it comes to local sourcing, 8 mm is simply not an option.
  • Get quotes on rod.

China 2017

  • 2017 year end - $2.6/ft for good stuff. Rodquote.png
  • More 2017 - $1.75/meter, but shipping is almost twice that. This is chrome plated but soft rod. $1.5/ft fo soft stuff. Softrod.png
  • $3/meter for chrome plated rods including sea freight, based on a 1 ton minimum order- $1/ft in bulk for good stuff. Aimachinery.png

Consumer

  • $4/foot from Aliexpress - [4]
  • $4.6/foot on amazon - [5]
  • $10 for 1 meter - Folgertech - [6]
  • Specifications included - [7]. $7.10 for 355 mm
  • How about less hard rod and plastic bearings? See about IGUS plastic bearings - [8]
  • Igus - $8/bearing - [9]
  • Reddit thread - no consensus - [10]
  • Igus external bearing dimensions are not the same - [11]
  • This reddit includes comments on Lulzbot rods - [12]
  • Press fit vs non-press fit IGUS - [13]
  • Drylin from Folgertech - $1.25 - [14]
  • 8 mm oil impregnated bushings - [15]

Shipping

  • 2020 - $100 for 60 rods from McMaster to OSE headquarters. Rodship.png
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