Question 840 almost there but white baseplate problem

Have exactly the same problem with my 2/840 diy kit.
The depth milling is by far to less and also the width is by far to much.

Hi All,

I too have issues with my 840. Got the bed in with a little force with both ends loose to give some room to move.

Then did the y axis limits with the back loose which works, but the machine will not travel completely to the front about 15mm short. Even with the front plate loose.

What is happening is the baseplate is pushing the rails outwards putting tension on the lead screws at the end causing binding.

The only way i can get the full travel is to remove the baseplate.

Machine is all working with no baseplate now and front and rear plates are tight.

Now i go to put the baseplate back in and there is no way its about 0.2-0.3mm to wide at the front to even get it started in the rails.

Any suggestions or ideas, surely i dont have to get a block and start sanding it to fit????????

Hi,

You've hit the nail on the head unfortunately!!

Get all your "tuning" done without the baseplate fitted, then "adjust" it with block and sandpaper. Don't overdo the sanding, otherwise the base might move with machining forces/vibration.

Good luck with it.

Peter