Development of a 3D Printed Part - Prusa Mendel Hair Dryer Heated Bed Mount

Picture of Development of a 3D Printed Part - Prusa Mendel Hair Dryer Heated Bed Mount
Last night I was printing a frame vertex for a Prusa Mendel based CNC router...and I was having a really hard time with my non heated bed...  The part would peel off the bed almost immediately... so I tried the raft feature... and even the raft lines were peeling off rapidly... I knew the problem was with the ABS cooling too rapidly.. but I didn't have the parts nor desire to make a proper heated bed at 1 a.m.  I decided to go "hill-billy" on it and came up with this:

It is basically my heat gun pointed in the general direction of the the print.. propped up precariously with a couple spools of filament and a roll of masking tape..  I was sorta surprised as to how well this ghetto setup actually worked... and thinking about it, there are some definite "pros" to this arrangement...
  • Simple electronics - no need for large power supply to run both the printer and heated bed
  • No need to take existing bed apart
  • No need to re-calibrate the bed
A proper heated bed would probably work better than this arrangement, but I am going to follow my two favorite principles on this one... the KISS principle (Keep it Simple Stupid), and the 80/20 principle (20% of the effort gets 80% of the results)... Therefore I am going to build a hair dryer mount for a slightly less ghetto and hopefully 80% functional heated bed.

And since there don't seem to be a lot of instructables that really dig into the basics of such a task, I am going to include every little detail starting with the basic idea and ending with the usable object with emphasis on the design/creation of the object.  While the part I am making is very niche specific, this guide is intended to be very basic/general and geared towards someone with little experience designing a part to be built with a 3D printer or other computer based tool.  Think of it as a general guide using a specific example for making something real.
beantek3 years ago
Cool idea...or you could just get a makibox from makible.com
macskyver (author)  beantek3 years ago
That doesn't help people who already have a Prusa Mendel...

That makibox looks really cool though... I kinda wish I knew about those before building my Prusa...

The only drawback I can see is that you are almost required to buy their kit, because the complex non standard parts (ie the body of the printer with all the motor mounts) are too big to be printed. I guess you could print a template on a regular printer and carefully use a drill press, but I can see it being hard to replicate consistently from person to person..

The Prusa on the other hand... seems more open source... Once you have one, you can print the complex parts for your friends to make theirs.. who can print parts for their freinds.... and so on and so on...

But don't get me wrong... I really like that makibox... it is an exceptionally good idea...

Yeah, the MakiBot isn't meant to be self replicating but for the price it's a great option to get started. I work with Z-Print powder printers but I want something I can use at home. I looked into the Prusa and it seemed like a hassle to put together.
Just curious, how much did it cost for you to make your printer? I have been considering building one of the rep-rap designs (pusrsa mendel/ mendelmax/ huxely) for a while, but have never been sure how quality the parts would be for the cost I put into it. Being a high school student on a limited budget, 3d printing has always intrigued me, and yet always seems a uncertain if it would be worth it to me.
This is way better than a rep rap
How would you even know? I saw that project on kickstarter only a while ago. If you go to his website, it say that the project was fully funded only a week ago. You can't say that the "makible" printer is better than any 3d printer when they haven't even produced their first fully functional test model.
...I never said it was better bro. Chill out
macskyver (author)  Retro Correct3 years ago
I think I spent around $600 US getting mine up and running... I didn't do it as cheaply as I could have though... I bought the assembled RAMPS kit and a new power supply.and a kit that had all the hardware and plastic bits.. The added convenience of the way I chose undoubtedly added a fair amount of cost. If you are a good scrounger, you could easily knock off $100- $200..
mikeasaurus3 years ago
Seeing machines printing out enhancement for themselves always blows my mind.