Desktop type router - Fixed gantry - steel frame MK2

[Tom J]

Looks good, I'd beef up the bed as it looks weak compared to the rest of your machine ��

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Neil, do you mean T-slot table or frame where blocks seats?

[JAZZCNC]

The other weak link will be the spindle clamp. Needs more clamping area or clamp top/bottom.

[Tom J]

The other weak link will be the spindle clamp. Needs more clamping area or clamp top/bottom.

Thanks Dean
Got massive cast bracket as well, but revised 2nd option too.

[njhussey]

Neil, do you mean T-slot table or frame where blocks seats?

T slot table, put the table on a frame or something solid, otherwise you'll get deflection and vibrations and poor finish....

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[Robin Hewitt]

You have the rails bolted to the table, a very good start.

Second picture you go wrong. Your mind is stuck in 2D and it has put a terrible overhang on the router to gantry connection and compelled you to move the bed bearings out from under the gantry creating the awful L shape.

There is no reason why the Z axis slides have to clear the router head, they can go either side of it.

Do it again and think overhangs, think 3D

[JAZZCNC]

Second picture you go wrong. Your mind is stuck in 2D and it has put a terrible overhang on the router to gantry connection and compelled you to move the bed bearings out from under the gantry creating the awful L shape.

There is no reason why the Z axis slides have to clear the router head, they can go either side of it.

Robin think you better explain because even I can't tell where your coming from with this statement.? If your meaning what I think where is going to put the ballscrew.?

Picture will explain best.

[Robin Hewitt]

Robin think you better explain because even I can't tell where your coming from with this statement.? If your meaning what I think where is going to put the ballscrew.?

I can't explain, I should probably shut up, it just looks unfinished. If the router moved back towards the gantry it would look better. If the lower Z axis bearings were at the bottom of the gantry it would look better. If the bed bearings were under the gantry so it didn't depend on verticals screwed to horizontals I would be rubbing my hands together in glee and shouting whoopy do!

[Tom J]

Robin do appreciate your comments, so far I managed to skim 10mm by putting spindle closer to the plate.
Problem is that I should ask first and fabricate later. I am seating on it now - previous correction was easier to do.
I will put X axis bearing on top and bottom of the gantry - saving a lot of distance but sacrifice stiffens (extra 50mm taller legs)
Regard the bed bearings as you see from current design they are in between spindle center point - so perfect position (this will moved towards gantry later).

[Tom J]

now Z rails left - this will complicate fabrication, thinking now to use alloy plate and make kind of box design