Reply To: BCA milling machine/ pulley drive system

[William SParticipant @williams]

Hello

The rear jockey wheels that I have run the belt over and under in some pictures are only to be used when the head is tilted, not when vertical. As I demonstrated they are there to keep the belt square off the motor pulley.

The newspaper is a Waitrose own brand thing, it’s the only plentyfull supply of free good fire lighting paper(and bench protector)!!

Even with the original motor the belt does stilll rub on the headstock casting on the slowest pulley combo, however on my previous machine which had a longer belt and a smaller diameter it didn’t.

The spring does seem to work on my machine, better than my previous machine, it has to be the right length too long and when the belt is released it launched the pulleys across the room! The spring in the machine above is perfect as the belt can be totally removed and the assembly remains. I do still have belt slip when using a slitting saw not that that is an issue, saves the saw blades!

Yes Tenga are not cheap, but nor where the machines back in the day, mine in 1977 with all the tooling I have would of been around £14000 in today’s money!

William