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madl3x / x-scara

SCARA CNC and 3D printing machine
GNU General Public License v3.0
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BOM #7

Closed vojjta closed 2 years ago

vojjta commented 2 years ago

Hi,

I went through BOM and there are probably some small mistakes.

In Arm is Tr8 Z-Nut and in Frame is T-Nuts. Are those same nuts for lead screw?

In Frame is 4 pieces for 20x20 60mm aluminum profile. But should not it be 8 pieces(4 for bottom and 4 for top part of frame)?

I am preparing Sourcing guide for my self... Would it help also to your project?

madl3x commented 2 years ago

The Z-nut is this one and is the nut connecting the lead screw to the motor plate. T-nuts are for frame assembly and they look like this. They are a bit expensive, so for 20x20 aluminum profiles, you can also use square M5 nuts.

In Frame is 4 pieces for 20x20 60mm aluminum profile. But should not it be 8 pieces(4 for bottom and 4 for top part of frame)? That is correct, I will fix that.

I am preparing Sourcing guide for my self... Would it help also to your project? Sure. Let me know when you're done and I will take a look. It would be good to be in text format, so it can be tracked by git.

madl3x commented 2 years ago

Fixed with commit 995abc5.

vojjta commented 2 years ago

The Z-nut is this one and is the nut connecting the lead screw to the motor plate. T-nuts are for frame assembly and they look like this. They are a bit expensive, so for 20x20 aluminum profiles, you can also use square M5 nuts.

As a second point in "Screws and nuts" for frame is 50 x M5 Drop In Hammer T-Nuts for 2020 (OR 50 x M5 square Nuts for 2020) and as a last one is 2 x T-Nuts (corresponding to your chosen lead screw). For Arm in section "Screws and nuts" is 2 x Tr8 Z-Nut (1 is mandatory, 2 are optional). That is why I think, that nut for lead screw is mentioned twice