What else should I have on hand?

Talk about all things CNC
Posts: 19
Joined: Tue Sep 08, 2015 6:50 pm

Re: What else should I have on hand?

Post by superfrog » Tue May 03, 2016 2:47 pm

As nobody mentioned, tapping in aluminium is really easy with a sharp spiral tap in an electric drill/driver with torque control and a reverse gear. Might work with a carbon steel tap too but they are brittle and I generally avoid them in anything that is not very soft or that is worth more than a HSS tap.
(something like this http://www.ebay.co.uk/itm/High-Speed-St ... 1422672920 -- is it ok to post links ?). These are TiN coated, which is not great for Al but works just fine in practice. Brush the tap with a wire brush to remove stuck Al between operations and you should be fine.

Will sound crazy to some, but it works really really well in my experience.
eShapeko #377: "Uncle Bob" 500x1000 deluxe frame, with nicely coloured plates.
Arduino Due + GAUPS 1.1 + 4xDRV8825 at 30V running G2
800W ER11 "Ol' Sparky" Chinese spindle + VFD

Posts: 233
Joined: Wed Feb 11, 2015 8:58 pm

Re: What else should I have on hand?

Post by Jimf » Tue May 03, 2016 7:03 pm

Make sure it is a spiral flute type which pushes the chips out of the hole toward the drill side.

Spiral point taps pushes chips forward. If you have a blind hole, you can quickly bottom out the tap and break it.

I find the smaller spiral taps can be fragile so I won't use it with a hand drill. I'm lucky to have a tapmatic and use it on the mill instead.

Be sure to drill the right size pilot hole for the tap. Steel and aluminum are different sizes for the same tap. Always use tapping fluid, I use Tap Magic. Even a drop of oil is better than nothing. Even worse is having to scrap the part if you can't get the broken tap out.

Did I say I hate tapping......

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Joined: Sun Mar 28, 2021 4:48 am

Re: What else should I have on hand?

Post by Zman » Mon Jul 05, 2021 10:39 pm

So yes, many have touched on what is needed.

Part hold-down systems. Clamps, tape, Later a vacuum table, whatever works for what you are doing. Safety devices: hearing protection, safety glasses, dust collection.

You may want to think about an enclosure for your machine depending on your needs. I don't need it right now, BUT some use the machine in a room in their home.

I need large monitors, even with glasses. So I am setting up tables to house my equipment, computer, monitors (two), tools, bits. I envision a command center (Sci Fy junkie). Think about what will work for you with your envisioned workspace.

Comfortable seating. I cheaped out with a drafting chair to meet the height requirements I needed. For programing and monitoring, a good seat is important. Be comfortable.

Of course, if your equipment is in a shop, you need a small refer to hold your water. No booze while working..... :D

Many of these you have already thought of or acquired.
Good luck and remember to ask if needed

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