First g0704 CNC Milling
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- Опубліковано 29 лип 2012
- Website: www.12centdwarf.com
Twitter: / blegas78
I finally decided to build a CNC machine after six years of dreaming about building one. I decided to go with the g0704 rather than my original idea of converting an X2.
The mill is converting some of my own designed parts using Hoss's dimensions. The mill is converted to balls crews from CJA Masterworks. The first parts I milled were the X-axis stepper motor mount and the ballnut adapters. Since my little room gets up to 110 degrees this time of year, I decided to 3D print the spacers, mounts and bearing holders for the rest of the conversion. The Dimension 3D printer makes pretty durable parts, at least enough that I should be able to make a stronger, aluminum bearing mount for the Y-axis in the near future.
Here I show my first two cuts using CNC with EMC2. I generated the first gcode using PyCam, but decided I could modify it to make a better part. The part I am making is for a project a friend I had for the summer.
I am not a professional machinist, so I still have many things to learn. - Наука та технологія
Thank you for the tip! I really like your videos, they are awesomely informative for beginners like me!
Just a tip. Managing a profile where the part you want to keep what drops free from clamping rarely works out well. You need the finished part to stay put. They make some decent quick clamps that have T-Nuts for one jaw. You can us that and cut out almost all the circle then move the clamps to the places already cut and have the program finish the circle after the clamps have been relocated. Then one side won't turn into a chewed up mess on you.
Nice conversion!
Nice work, well done.
Thank you for the tip! Since this video I have been doing exactly what you recommended with re-clamping the part. The parts are now coming out much cleaner and more accurate!
I guess I was used to 3D printing where a single program generates an entire part. :-/
There's definitely a learning curve, and I'm certainly a novice. Sure is fun though!
Thnx for all the info Sir!
Great job. a cold air blast will help you get a better finish and get the chips out. great job on the end covers for the stepper motors as well .
Thanks, I use 3 Keiling 570oz nema 23 motors, and Keiling 5056D drivers.
TTS is absolutely wonderful, you only need to set the tool height offsets once, then you don't need to account for it as long as you have your tool offsets set in EMC2 (or something similar). Then I call a code like G43 H2 for tool number 2, to apply the tool offset programmed for tool number 2.
Yes that's a great idea, though I guess I would need to remove the protective film so that it sticks a little better. Thanks for the suggestion!
I made a 3D print adapter for the Z-axis motor mount, but I could have done something similar to the X-axis by milling a flat plate and then use spacers.
Since I was planning on using ball-screws from CJAmasterworks, I had already replaced the lead-screws making it easy to use an oldham coupler from McMaster.
This is a manual mill that I have converted. Since I paid for everything out of my own pocket, I have to start cheap and build it up. For the price, the g0704 is a great mill from what other experts have said, but it will take some time to get it running as a CNC.
I can give you the STL files, but keep in mind I designed the parts with a Dimension 1200es printer in mind which prints support material to support overhanging structures.
Hossmachine on youtube designed one that doesn't require support material. His video has a download link in the description of his video "G0704 Stepper Motor End Covers"
That is software dependent, so it depends on whatever CAM software you use. I think it only becomes restricted in trial software.
Hi, If you watch a lot of the video's about cnc, loads of the guys stick the parts down with Double sided sticky tape. not sure it will help but may be worth a try.
How is using the TTS? Do you have to zero the Z height every tool change or does the TTS holders always have the various tools at the same height so you only set z once?
nicely done! what stepper driver and motor did you use?
hola una pregunta... el mismo sistema de coneccion sirve para fabricar un cnc router? gracias
can you use MDF for practice runs?
mornin on the ene is there preprogamed item loaded, or is it one uf the dunmin ones that helps you along. my progamin is a lil rusty i see you price dn below do i need to add all the numbers toghter or is the machine with all requried toolin, or is the total amount 4000 grand and i should be ready to go. thx Michael
did u make this into a cnc or is it already computerized, im confussed, im looking for my first cnc, but i dont want a rubbish one, so id have to get another one 2 month later. im not sure if u made this mill from maneul to computer software. thanks for the vid
hi were did you buy the cnc parts
Mill was $1,100, motors+electronics maybe around $700, tooling and other misc stuff I would say around $1,200
how did you attach the motor to the z axis and how did you attach the shafts to each other? did you remove those two weird shaped nuts on the z axis leadscrew then use a coupler or did you find a coupler big enough to clamp over those nuts? Thanks and great vid man... trying to figure mine out :)
could you do engraving detail with this also?
do you mind me asking the cost of the total cnc conversion to get everything up and running. Also, I have 7 years CAD experience and was wondering if polycount is a big issue with CNC machines. Do you know if you're suppose to keep the polycount/vert count below a certain number? I'm planning on building one of these within the next year and I'd like to model a few things ahead of time. Thnx man!
Yeah pretty easily. I'm hoping to cut 3D shapes out of aluminum, and I may need to machine steel at some point.
does the poly count/vertex count matter? is there a limit? i know cad and am curious???
Get your self a sacrificial altar of wood or something. never mill something directly strapped to your table.