The Home Machinist!

Steve S wrote: ↑

Fri Mar 27, 2020 4:52 pm

HSS plug tap
I made a couple of carbon fiber shrouds for my pcp air rifles .
It's a modified Kral NP-03 in .177 , shoots a 9.57gr pellet at 910fps . Over 17ft/lbs energy

Looks great Steve!
I've been abrading the inside of CF tube and bonding in threaded inserts for barrel shrouds.

My Snap-On Lineman Pliers do that easily.

Can't be bothered with rated components and using components in applications they are not designed for again?
This is a steep learning curve isn't it?

You put side load on the caster wheels which they were not designed for by re-mounting them as fixed wheels.
Entirely your own fault for using a component in an application it was not designed for!

Tap make?
Tap Type?
Are you tapping the bore of Carbon Fibre tube?
If so why, and have you considered the impact of that on it's structural integrity?

Always good to know your history, the screw cutting lathe originated in the 18th century

Calculating the gear train is the easy part. Coming up with a solution that physically fits on the banjo is the hard part. Ah, but nThreadsP gives you lots of options, it gives you all the possible options with your set of gears, it even allows you to choose to allow an acceptable error if you so w...

The harsh reality is that not everyone has need (nor desire) to master machining. For some folks, their machine tools are nothing more than a means to an end---they want to build a widget, and machine tools are required. They have no aspirations of becoming a machinist, and have little interest in ...

Go ER40 instead, it's far less limiting and contrary to the opinion of those who haven't used one you can turn square, hex, octagonal and tapered stock in ER40 collets

I question the need. I was trained on manual machines and have never used a DRO. Seems to me like a lot of money to spend with not such a great return, but then I have the utmost confidence in my ability. That didn't come fast, or easy. H I thought exactly this way until I used a DRO, in conjunctio...

NthreadP is a calculator which takes your driving gear size. lead screw pitch, your available change gear sizes and calculates the gear possible trains for the thread of your choice. http://www.lathes.co.uk/latheparts/page14.html I use it to cut metric and imperial threads on my change gear Myford S...

Iscar MGCH06 bar and the appropriate GIQR8 grooving cutter/insert good for holes down to 8mm on the lathe For cutting plastic and the forces involved you could make your own holder rather than buying the MGCH06 bar, you can buy individual GIQR8 grooving cutters for a few dollars. https://www.google....