LR4 Zero Build

How It Started

For those wishing to follow along, this is how I got started on my LR4 adventure. Special thanks to all those that offered help in order to get me to this point, despite my frustrations :sweat_smile:.

How It’s Going

Just received my shipment today!!

I’m planning to get started on assembly shortly! I still need to source my building materials (OSB, conduit, etc) but have enough to at least get assembly started!

Stay tuned kids, I’ll do my best to document my progress :slight_smile:

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Unboxing :hugs::

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As I wait for my touchplate to come in the mail before I finish my core assembly, I’ve been contemplating how I want to set up at least an initial table to get my strut plates cut. My local orange box store didn’t seem to have anything larger than 8ft in non-dimensional lumber. The other big-box does have 10ft boards of PVC - not sure that’s rigid enough?

I want to get working on something like Ryan’s parametric table design, but I’m not sure what material would be best for the side rails if I can’t find boards > 8ft..

I’m hoping to make a single trip out (would need to rent a truck to haul full sheets) to pick up my rails, sheets (spoil board and such) and whatnot. I have some MDF sheets in my garage - they’re not full 8x4, but would be suitable for ripping into strips for the parametric table ribs, etc..

Any suggestions on how best to solve the side-rail issue without having >8ft boards?

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i think i listed it in that thread. i am using mdf trim boards, or something like, primed mdf strips. they come in all lengths around here.

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I didn’t want to sound like I hadn’t read your thread; you have a plethora of information in there.

I was more asking if there’s a means to join/layer boards of lesser lengths to adequately achieve the required length.. What I’m thinking is if I find suitable MDF boards @ 8ft, I could cut them in 5ftx2 + 3 1/3ftx3 and glue them together in a pattern like so:

Otherwise, would the PVC boards be suitable @ 10ft lengths with similar 5ftx2 boards beneath for rigidity?

I think Ryan is suggesting these boards.

I’ve bought them before when I needed strips I know won’t warp. I’m sure Home Depot has similar. If you want to join them together for additional rigidity you could, but you might as well start with these instead of 8’ boards so you have less cuts to make.

Edit: if you’re saying you don’t see the boards at Home Depot or Lowe’s, I think you want to look more because they do have them. If you’re saying you want to use what you have, then the overlapping boards like you drew would be reasonably rigid I would think.

Yup pretty sure that is what I used.

If you have to join them do it like I did in that thread, at a 90 degree and just use a small backer block at the joint, flat on flat isn’t as rigid as the 90.

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Yes, this. I have scoured both of my local stores. I can expand my search to nearby locations, but I legit cannot find anything other than PVC boards or dimensional lumber..

One HomeDepot near me had bender board which is perfect for strut plates and another has 2’x4’ MDF project panel bay.

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These will work as well. The sides hold very little load distributed one the one side with a steel rail and on the other between two wheels about 12 inches apart. Anything more than 8 foot should be fine.

IF you need to join two 8’ pieces, it should be no big deal at all. Make the joint at the far end since that should get used less and if you can ever feel it, sand it and paint it again. It really really is not a big deal. The joint is only felt by one wheel at a time and only on one side.

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Thanks for the help Ryan :heart_hands:.

Next thing I need to figure out is how I’m going to get all this stuff home.. doubt it’ll fit in my hatch back.

I can fit 10 foot conduit and a grill in my Subaru Impreza.

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wait… you can angle in 10’ conduit?? I also have an Impreza hatch! :thinking:

Yep, from passenger side front to driver side back.

Have you ever strapped a few full sheets to the roof by chance? :thinking: :sweat_smile:

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No. I don’t really want to turn my car into a kite. :laughing:

If I need stuff like that, I either get a family member with a truck to help or have it delivered from a local non chain lumber yard. They used to deliver for $25 but I think it’s $50 now.

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If you are really in a pinch, most Home Depot’s have a truck you can rent.

UPDATE:

I’ve assembled the majority of the Core

but am still waiting for shipment of my touchplate and endmills before completing (weather has delayed most shipments :roll_eyes:) . I’ve also assembled a bit of the YZ plates

I’ve had fun getting things put together… but hit a snag when running the wires for the stepper motor on the YZ_Min plate..

In the assembly instructions in the docs, the motor wires are run one at a time through the channel meant for the purpose;

image

but the kit I received had PVC wire wrap/tubing protecting them;

I unfortunately assumed this would be fine and should fit in the channel anyway, but I ended up snapping the lip of the channel..

and am now seeing if it’s possible to glue it back together, or if it would be best to just reprint. I know this specific piece is not structurally relevant, but I also understand this side needs to have a flush surface, and the wires need to be routed well to avoid interference..

If y’all think it best to reprint, then so be it. That still leaves the question; should I strip this cover, or is there some trick I’m missing? (based on the start of my previous thread, I’m assuming the latter)

This :100:

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Question then; are these cables assembled by the V1 team, or ordered 3rd party? Not that it matters in the end, just.. curious of the logic for the change.