On Sunday, February 13, 2022 1:24:54 PM EST Chris Albertson wrote: > First off this is a really simple design. I think it could be done on > a normal manual lathe with no CNC. Just use the correct thread cutting > gears to drive the carriage. > > The trouble is that writing g-code by hand or turning handwhels with no > computer breaks the chain that goes from your design file to the > product. You have to in effect re-design the product. It is easy in > this simple case but what if the product was something like the > housing for a motorcycle transition? There is no way on Earth you'd > hand-code that. So I can see the need to perfect a workflow that > connects CAD models to a 4-axis mill that has no air gaps.
Potentially 5 axis. But this B is so big, 5 may not be able to fit in the available Z. That is what I'm looking for Chris. But freecad wants nearly all of Qt_5.15, and has burned up an additional 20% of the / drive, a 500GB SSD. is now up to 35% use. And thats just trying to satisfy the weekly 940 meg freecad AppImage that is supposed to have ALL its dependencies in the AppImage. At this rate, I'll have to buy 4 more 500g SSD's and another controller card for /. Can mdadm handle 2 raid10's? > So what you are looking for is traditional "CAM" software. This is the > software that looks at you model and figureout a toolpath. It might do > roughy cuts first then change the tool and do more. Not a problem. installing the wedge if its not made adjustable so it can be backed to zero, is. As is the kinematics of a Y caused by that tilt around the x axis. I'll have to make a hinge at least an inch thick with V notches in the upper faces to give me a measuremeant point to use to translate distance into degrees by standard trig functions. Picky but doable with instructions painted on the wall. :o) > The software has > to figure this out based on using only the tool you already have and > it needs to know about you mill so it can get the spindle speeds and > cut rates right. It is not simple. It is so non-simple that there is > not much open source software to do this. > > If you Google "CAM Software" you get a lot of hits. > > This websites lists the top 16 CAM software systems, these that can > drive a CNC mill or lathe > https://www.g2.com/categories/computer-aided-manufacturing?tab=highest_ > rated > > If you are looking from free software, the list is short. FreeCAD can > do some things but is limited to "mostly flat" 3D and 2.5D milling. > > Fusion can generate g-code for lathes and do full 5-axis milling It can > do a simulation and can pretty much do anything. but the free version > is limited to 3-axis only with no automatic tool changes. So you > have to set up one job for each tool. > > > There is also PyCAM but it is more limited then FreeCAD > > I think that is the full list of free software. [...] That would disapoint, but not surprise me, TANSTAAFL is a universal law that not even George Soros can violate. I can and have written gcode more complex than this, but its reached the point where it will probably cost me at least this $140 stick of hard maple to get it dead right. The 2nd half nut is finished, and faced to each other, you can't find the joint where they are resting against each other, even I am impressed. So next is the wedging hinge, but first go measure the existing mount. The table extensions to absorb the lengths of the B drive and it tail stock, making nearly the full 600mm y travel available for working envelope are yet another problem. But that just squares, albeit good ones. A good test of the printer, one my ender5 could never pass by 1/4". Creality is generally pretty poorly built, haven't found a square one yet in 3 of them. Prusa MK3S+ yet to be tested, its a good printer, when it works, but ATM the hot end thermister has gone berzakers above 200C. This BIQU BX came with an H2 head destroyed by a Chinese gorilla over tightening things, but since replaceing it at my cost, has been nothing short of amazing. Take care Chris, and stay well. Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
