Advice on Mammoth CNC Router Build - Steel Framed - 2440mm x 1220mm cutting area!

[Lee Roberts]

It is 10mm MDF the box section is 60x60 the MDF is placed right on the edge (just on the round part of the box) and then a very thin bead of silicone was run around the inside of the moat to stop any leaks. I also rubbed a little oil on my finger and ran that around to stop the epoxy sticking to the MDF.

The epoxy is like water and runs around ok. When it was cured the MDF was removed (the epoxy creaps up the inside of the MDF a little) Then I used a scraper and a flat file to get rid of the edges that were raised, it is easy to see when you are scraping it because it will start marking the centre.

The rails were then screwed right through the epoxy into the steel. Job done. The epoxy can be chamfered off at the edges as it can be very sharp like glass. ..Clive

Thanks Clive, I liked the tip on silicone, will add that to the mental archive for when the time comes. Good idea on the chamfering, i was thinking about what i could use to protect it once done but it sounds like its quite durable.

Clive, where is your build log?

.Me