UHMW vs MDS Nylon

Рет қаралды 34,717

7 жыл бұрын

Comparison of two low friction plastics in a linear application with short stroke length and medium-light load.
mechanicallumber.com/

Пікірлер: 24

@truebluekit 3 жыл бұрын

For a beginner wood/metal worker looking to make jigs and fixtures, this was important to know. Thank you very much for making and sharing this.

@christowers3939 6 жыл бұрын

Thanks for taking the time to test the materials, and post the video. Good info in there

@ashokyadav4557 5 жыл бұрын

You are wonderful man, I m seeing many your videos, you are taking lot and lots of pataince on every job u take in hand. God bless you.

@brothyr 7 жыл бұрын

UHMW tape is my favorite for many slidey things.

@dailymines5471 Ай бұрын

Sir you are lifesaver !

@jeffiscool1805 6 жыл бұрын

Very helpful video. Thank you.

@danervin2530 4 жыл бұрын

I have to make some door track sliders and was considering Nylon. After you mentioned the squeaks alone- I’m willing to pay the difference for UHMW lol.

@DBYNOE 7 жыл бұрын

Thx for that. Btw, a few diy tools seem to call for ball bearing slides, I always thought that that UHMWPE could be a useful, less expensive alternative. Your thoughts on testing this would be great.

@ScottRumschlag 7 жыл бұрын

Delrin works well too, I've become very fond of Delrin for linear slide bushings lately.

@heel3r970 3 жыл бұрын

Can a UHMW block slide on another UHMW block? In my head this would be very slick but I can also see how they may wear each other out. Thoughts?

@WhatWhatYoYo 7 жыл бұрын

Any reason didn't use mass loss for evaluating the materials? That's the ASTM standard. I believe.

@ScottRumschlag 7 жыл бұрын

Didn't think to measure that as I'm more concerned about dimensional change. Now that I am thinking about it: my scale is also nowhere near the accuracy needed.

@deemdoubleu 2 жыл бұрын

Hello, any idea how UHMW would wear against say a diamond plate/abrasive? I could try it of course but just wondering if you have any experience like that. I was thinking of using some as a bearing on an abrasive plate but I suspect that it will wear a fair amount. Thanks.

@ScottRumschlag 2 жыл бұрын

I expect that anything would wear significantly when placed against an actual abrasive. This soft UHMW is probably no exception.

@daltznz 7 жыл бұрын

How come you are testing this? If you wanted something in between and harder than UHMPE you could go acetal.

@ScottRumschlag 7 жыл бұрын

Because these are two plastics which seemed like good candidates based on my experience and research. I have some Acetal and it's something I'll test later.

@ScottRumschlag 7 жыл бұрын

I ran some acetal for 15,500 cycles today and indeed got some results between the other two plastics. Slightly squeak later in the testing and very slight wear, very good overall. Images here: mechanicallumber.com/plastics-comparison-uhmw-vs-mds-nylon/

@scott98390 7 жыл бұрын

Where are you sourcing the UHMW?

@ScottRumschlag 7 жыл бұрын

McMaster for now.

@DaveSmith-cp5kj 7 жыл бұрын

It is UHMWPE, not UHMW. It stands for Ultra high molecular weight polyethylene. This may be why you might not be finding sources.

@Serrrich 6 жыл бұрын

Hey Scott, do you know how easy a 5/16" sheet made of UHMW-PE can be bended? I mean, it can be bended with ease by hand?

@ScottRumschlag 6 жыл бұрын

It will probably spring back unless you heat it.

@Michael-ki1qo 5 жыл бұрын

@@ScottRumschlag yes, you are total right.

@Professionalplastics 5 жыл бұрын

Both materials are available online. For UHMW, click: www.professionalplastics.com/UHMWSHEETRODTUBE - For Nylon MD, click: www.professionalplastics.com/NYLONMD