It's a Z floating head idea. Works well. Recommend cleaning the inside of your holes well with Q tips, and polishing the 1/4-20 bolts with car wax and you won't need oil as it slides perfectly. Hope this helps

A Torch Height Controller helps improve plasma cut quality and can save a CNC Machine from crashing. This design doesn't require you to know electronics or need any custom circuits... Its plug and play! This is a COMPLETELY standalone controller with a built-in Driver powerful enough to run just about any stepper motor. (maybe a little to powerful for a NEMA17)

This is a story about a guy who started with a $25 set of plans, and through 4 iterations/ rebuilds, ended up with a professional quality CNC plasma table capable of cutting anything steel up to 2 inches thick.

Plasma Mill CNC

Inspired by MetalGuru's idea : The plasma too cutter . If you have to cut small to medium sheet of steel with a plasma , this build may be for you

Fast, inexpensive, near-zero maintenance, and 2+ years of near-daily use.

lead machine plasma table with Black Box, and Torch Height Control

A small portable CNC Plasma Cutter with some unique features

How to convert your OX CNC to a plasma cutter at low cost

Step by step designing and implementing of my plasma approach

5 X 5 Plasma table...Hypertherm 45 XP....CandCNC....Openbuilds

Simple steel tube design Plasma water table

Not completed yet but it does work, I will be changing small things as I finish the build and I have learned a lot from this build I am looking forward to finishing this one and Building another maybe larger table.

It startet in May with some leftovers from a cnc router build. Now in the middle of December its 99% finish. Everything is lowcost, spend about 1600$ so far.

Inexpensive plasma table. Accurate, fast, and low maintenance.

CNC Plasma cutter: 608ZZ on steel square tube linear rollers Welded frame HDT2-15 Belt Drive Tradeweld Cut-40 Plasma cutter with converted hand torch Virtual Torch Height Control through inductive probing - open source electronics project

A Benchtop Plasma Cutter Concept

I will update this as I go, cad files upon request. My x beam is basically a belt driven r7

IIOT WiFi Plasma CNC.

A plasma table able to cut 4'6" x 8'8" sheet. Low cost as possible.

more later

Improvements to a cnc plasma cutter i designed a while back. Not that it really needs it to work but i think it could be an improvement.

Homemade plasma cnc

Attaching V Slot or mutable V Slot end on end to a larger steel frame table.

Powder coated multi CNC Z Axis plasma adapter with Proximity sensor. . It can also hold a 80mm Router head/Spindle as seen in my router build.