Re: tips for tapping the MakerSlide
Posted: Wed Feb 12, 2014 4:39 pm
For those with access to a 3-D printer, this little guide is worth its weight in gold: M5 Tapping Guide for MakerSlide.
The Shapeoko CNC Group
Give me the gold, and let me keep tapping with my drill.regressedEE wrote:For those with access to a 3-D printer, this little guide is worth its weight in gold: M5 Tapping Guide for MakerSlide.
I hear they're giving it away in some village in Russia ... of course, there's a little work involved!cvoinescu wrote:Give me the gold, and let me keep tapping with my drill.
regressedEE wrote:For those with access to a 3-D printer, this little guide is worth its weight in gold: M5 Tapping Guide for MakerSlide.
I'll add to that... for power tapping there are also gun taps, which have a cutting edge which is angled to push the chips down the hole, and spiral fluted taps which feed the chips back out of the hole like a drill. Gun taps are good for through holes or blind holes drilled deep enough to allow room for the swarf, and spiral fluted are preferable for tapping to the bottom of blind holes. There are also forming taps which create threads by deforming the metal rather than cutting. This can lead to very strong threads, as the metal is "cold worked" to make the thread. The tap is stronger as well because it doesn't have flutes ground into it.fishtoprecords wrote:There are three separate types of taps in the machining world. Or, rather, three with straight flutes, and lots more specialized ones.
Most of your hardware store taps are tapered just like @ing showed. They have about 7 threads in the taper part before they get to full depth.
- * tapered tap
* plug tap
* bottom tap
A plug tap has less of a taper, maybe 4 or so. They are easier to get crooked, but can tap closer to the bottom of a blind hole.
A bottom tap has very little taper, its designed to make the threads go to the bottom of a blind hole, after you have done most of the threads with a plug or tapered tap.
For the MakerSlide, you really want a tapered tap.