spindle and motor arrangement

Engraver Spindle Sketch to Parts

November 14, 2020 Nigel 0

Working from an Engraver Spindle Sketch to Parts can be daunting. However, I very rarely work with more than a few sketches and key critical dimensions. This is all about improving the spindle of the [more…]

linear brass bearings fitted to Genmitsu z-axis

Linear Bearings

November 12, 2020 Nigel 2

I think this post should actually be titled “cheap linear bearings” as I don’t think all are equal. However, the bearings found in low end CNC machines are effectively parts from the inkjet printer industry. [more…]

sketch for a cnc spindle

CNC Spindle Idea

November 6, 2020 Nigel 0

I have a CNC spindle idea, a simple modification to the direct drive 500 series motor. To be precise this is a spindle for the Sainsmart Genmitsu Pro-3018. The spindle will then be belt driven [more…]

genmitsu cnc in case

Sainsmart Genmitsu Z-axis

November 2, 2020 Nigel 0

I bought this small CNC machine to engrave the smokebox door on my miniature traction engine, but the Sainsmart Genmitsu Z-axis accuracy is poor. Poor in a number of ways, but primarily down to the [more…]

Ferris Gold Carving Wax

Ferris Gold Carving Wax

October 21, 2020 Nigel 0

My cheap CNC machine is very limited in terms of the materials it can work with, hence I thought I might try some Ferris gold carving wax. Hopefully this will allow me to accurately machine [more…]

engraver, end mill and slot drill

CNC Cutting Bits

August 2, 2020 Nigel 0

I’ve been using milling machines for my hobby of model making for over 40 years, but CNC is new to me and CNC cutting bits are new. The primary first task for the CNC engraver [more…]

sain smart table clamp

Sain Smart T-nuts

July 22, 2020 Nigel 0

Just a quick share as the T-nuts and clamps that come with the Sain Smart 3018-Pro are ok and functional, but only just. First though, notice that I’ve turned the height adjusting bolt upside-down. My [more…]

Sain Smart CNC Router 3018-Pro

First Venture into CNC

July 20, 2020 Nigel 0

For my first venture into CNC I thought I would buy a Sain Smart Genmitsu Router 3018-Pro. This is the low end of CNC engravers and at the time mid-2020 was around £200. The reason [more…]