Hello Irfan.
I bet your having a great time, no matter the doubts you can get. Keep going.
I like your solution to the limits switches. I was thinking in involving them in a very soft plastic to protect them from the powder.

No Hugo, I think the limit switches just need to be maintained, enclosing them in soft plastic may result in more dust accumulating within it. Any wayz if you have a proper dust evacuation system then there is no need to protect the limit switches.

RGDS
Irfan

Irfan & Hugo, all dust evacuation systems have a problem to work correctly at the edge of the board. When you are right on the end of a board, the cutter gets exposed.

Irfan, you have the right idea to lift a mechanical switch up, away from a flat surface where dust will collect. Also, the holes in the switch must point downwards (like you have it) so that the dust will fall out.

Hi Gerald and All,

I had a Q

1. for the timing pulleys which i will be using to drive the pinion can i use just the grub screws to hold the pulley's in place or is it necessary to have a key to bind it with the shaft.

2. If only grub screws can be used tehn how many, I was about to put 3 each 120 degree apart........is it OK

3. I expecting a center distance of 325mm, will that matter much?

4. I will be using a HTD 8 mm pitch belt. is it OK

Regards
Irfan

Hi,

Any answers to my previous questions

RGDS
Irfan

CNCzone

Righto Gerald,

I moved my thread to the CNC Zone, I will keep posting updates on this forum when ever there are major updates on my thread at CNC Zone,

Gerald, thanks for all the inspiration.

Next a mechmate in in my mind. I already have the vampires. So see you all guys later

at CNC Zone my address will be http://www.cnczone.com/forums/showth...147#post347147

Thanks for all the help!
RGDS
Irfan

http://www.cnczone.com/forums/showth...138#post349138

Updated with Pics and ideas