Gallery, Projects and General > The Design Shop
3D Printed Quorn Tool & Cutter Grinder
Joules:
nrml, looking at that as an option to make best use of printed grain in parts. Post some CAD ideas in a few days, once I cobble a list of materials I have or need to get started. Not expecting a printed Quorn to behave and handle tooling as per a metal engineered machine, but hope it will handle fine work without too much flexing. Thats the aim anyway, and to just see where we go. Norman got it, in that rigidity will be the biggest issue.
tom osselton:
How big is your print area on your 3d printer? It is posible to make it in two halves with a reinforcing shaft that goes through it along with locating pins.
Joules:
I am just having a mess about with the CAD file now. The bed on this machine is 150mm square so I can almost squeeze it in at 45 degree across the bed. However I am looking at making this part in two pieces as I want the printed layers in two planes to maximise the material strength. I think the vertical column part of the casting will have a section tee'd into the main casting to pick up one of the bars. I can then plastic weld these parts together. Otherwise my option is to split the casting between the bars and insert an alloy plate that has been bored to tie the bars and bridge the printed parts, this could also be applied to the other printed casting for the other end. I am still doodling those ideas.
awemawson:
--- Quote from: Joules on December 18, 2015, 04:42:22 PM ---Does anyone have the approx weight of a built Quorn. Ours isn't going to weigh that much, but its not a bad idea to design it for that weight and some. Looking at the base bar supports now and thinking they need to be fully supported along the bottom of the casting/print rather than just a foot.
--- End quote ---
Looking back through my records, the last Quorn that I sold, which was fully equipped, with all collets, spare wheels etc and in a fitted case had a packed weight of 40kGs.. This was a particularly nice one that I had bought from a deceased estate but had been left in a shed to rust by the family for far too long before they sold it.
Joules:
This is what I propose to do with the printed casting. I have done parts like this in the past and then welded the edges. The column part will be printed as is, the bar support printed on its side to make best use of the printed parts strength.
As for motor, I am not expecting to use the standard motor, maybe a brushless outrunner as I don't expect to grind the same amount as a full cast iron based Quorn and thank you for a guide on weight.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version