1200 x 800 Gantry Router Build

[reotilemarine]

I have managed to put together a first draught of the machine base. It is quite a steep learning curve with fusion 360. I have put in a grid of tapped holes at 50mm centres. This may be changed to 75mm in time as its a lot of holes. I will have a sacraficial top over this with clearance holes into the threads below.

Before I model the gantry I have looked through here for some parts I am unsure of but still undecide on -

• Optimum distance between the two carriages on the linear rail to give adiquate support without loosing too much Y travel.

• This may also have a bearing on the first query, suggested height of gantry. I would like to have a minimum 100mm of useable Z travel above my sacraficial bed if possible. Machine bed is 15mm and sacrifial bed will be similar. I understand different Z axis designs can give more travel but there is a trade off for a springy Z axis at shallower depths.

[JAZZCNC]

This might help.

This is the tallest gantry side out of this model I use. This would give you 230mm from the lowest point under the gantry, which is the bottom bearing plate, to the top of the profile. This doesn't account for the bed or spoil board.

[Soyb]

Hi reotilemariine

It sounds like we are on a similar journey, http://www.mycncuk.com/threads/14558...t?goto=newpost.

I am in the process of designing / building a desktop gantry machine based on simple obtainable components, I only have a Stepcraft machine and a 3D printer to make everything,