Gallery, Projects and General > The Design Shop
3D Printed Quorn Tool & Cutter Grinder
Joules:
Ahhh, its only taken about 6 months to get back to this project. Work has slowed a bit and I got some workshop time for my own stuff. Last time I had been thinking about making a reamer for the 3D prints in order to get the front bar inserted. That idea got turned on its head, and I decided to machine the bar.
At this point I wished I had picked up a travelling steady for the Myford whilst I was at the Doncaster show. I made a superb elongated lobed barrel... :palm:
Good job this is my time... Out with the wet and dry, using 3in1 oil as lube, I have many hours of fun polishing it to size. All is not lost, as my 3D print bores are also elliptical so the bar fits in two places.
I used Sharpie on the bar to transfer the high spots. I can now scrape the internal bore of the print to better match the bar, old technique modern materials. Why aren't I machining these ? Well, they are hard to hold and flexible, tools can too easily dig in. It would have been better to design the part fit better from the start :) Now where's the fun in that...
The bar fits and is a loose in the ends. I can overcome this to some degree when I print the dust shields that fit on the prints and they can be classed as consumable items.
I'm pleased with how it's going the parts so far take only a few days to print. Corrections and modifications to drawings are quick and easy depending what materials you have on hand.
The scraping tools work great by the way, just a tad more aggressive, so work gently.
mexican jon:
Loving this thread :scratch: it's as mad as a box of frogs :clap: :clap: I can't wait for the part where you print the motor :lol: :lol:
Joules:
Funny you should mention printing the motor.....
It's only any good for REALLY light grinding....
Hand scraping took only a few minutes, wish I had thought about it yesterday. Now a nice sliding fit on the bar, the cheap scraper tools I used are shown in the picture.
ddmckee54:
Joules:
I really like your print quality. I particularly admire the crispness of the printed text, how big is it? What printer are you using and what are you using for a layer thickness when you print your parts? I believe that you said some of those parts were 24 hour prints, what is your typical print speed?
At this point I'm still just dreaming of getting parts like those.
Don
Joules:
Don, most of your questions are answered further back in the thread. Longest print I think was 14hrs, nothing printed overnight usually started in the morning and removed it in the evening. Minimum reliable text is >3mm. Layers are a combination of 0.1-0.15mm depending on detail required (text etc)
Print speed is generally 50mm/s. My printer is now discontinued but a good replacement I got some hands on time with is the Wanhao Duplicator 6 It's a new model along the lines of the Zortrax M200 but half the price. It might also be worth pointing out my preferred software for slicing and printing is Simlify3D.
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