Monday, 30 January 2017

Functional mechanical design ( Results)

Navindran S/O Chandran/ Navindran Chandran
Diploma in Mechnical Engineering @Singapore Polytechnic
Works as Fablab Assistant @ Fablab @Singapore Polytechinc

Hi guys,as I said in the last post yesterday, I try out the experiment and I have a good results

Shout out to Tze Chuan for the comment it was really helpful.

Now I will be discussing about my cubicon setting:

This is the setting I put for the mounting that I did.

This will be the time taken to print and details about the layers and tolerance

The execution of the experiment

I did this in one try and it works gladly

The picture below will be the time I slot in the M8 nut

The slotting in the M8 nut need some gut feeling and some calculation as one layer is 0.2mm you will roughly know when to slot the nut in . Please make sure that you guys take in the consideration  of the nozzle head as the nut may effect the printing .  Believe it or not I was sitting infront of  my 3D printer for 45 minutes from the time my hexagon start forming just to get the confidence to slot in my M8 nut .Phew... Any way it's done and I'm happy to see the final product.

The Final product:

Sorry if you guys can't see the M8 nut as my lab here have poor lighting and my smartphone camera is not that good.

This is the video with mmy lead screw to see whether it's working or not

It works fine for now let see when I add my other parts.

As ABS have a mechanical properties :

I think this experiment that I have succeed will work for a long time



Sunday, 29 January 2017

Functional mechanical design

Navindran S/O Chandran/ Navindran Chandran
Diploma in Mechnical Engineering @Singapore Polytechnic
Works as Fablab Assistant @ Fablab @Singapore Polytechinc

Sorry for a quite a log break for my blog as I was busy with my studies and project you guys can follow my project here:

My current project link

I had a chance to take a project in my school where I will be implementing my idea in Indonesia . Please take a look as it may give us a solution in singapore for urban farming to find out more please click on the link above.

I'm writing a post today, to document my experiment that I gonna conduct for my project, I have a lead screw to do an actuator that I'm gonna use it for my project above. I can't find lead nut with mounting and it's quite expensive and will take a long time to get in my hand.

The information about the lead screw:

M8 Lead screw 50cm long

I will be using cubicon as I want it to be fast and reliable. The material filament is ABS

So what I'm gonna do is I'm gonna design a mounting lead nut by putting my nut during the printing it self. That's why I said that this is a experiment to find whether when I add foreign material can I get a rigid structure

This will be the design where the dotted line is my slot for my M8 nut

And I gonna add my M8 screw when my printing  reach here.

You guys may ask why not you print M8 thread using Cubicon . It will a long time to print and the resolution of printer is not good that M8 thread will be not M8. By doing this I think that I may reduce some time. Tommorrow , I will be executing my design and will do a post later.
So for now I think this post will give you the idea