LR3 to LR4 - srcnet build

LowRider CNC Your Builds
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I’m excited to upgrade my LR3 to a LR4. My reason for upgrading is that the LR4 is cool. I have no problems with my LR3, it works perfectly to cut and pocket things for Etsy (and fun).

I decided on round steel DOM tubing. 32mm, and 1.651mm wall from a metal supply house. They cut it to the numbers I gave them. Cost me $88. This is a little thicker than conduit and conduit would have cost me $62.

Also I will upgrade to Jackpot at the same time.

LR3 to LR4 upgrade costs (will keep updating):

Part Cost
Rails $88
Jackpot CNC controller $66
Hardware upgrade kit from V1 $37

Going to print in PLA first. I have one million rolls to use up.

Proposed color scheme and estimated filament needed

QTY File Name Infill Comment Color Filament needed (part) Filament needed (total)
1 Core 30% Color 2 Black 589 589
1 FrontWheel_Min 20% Color 1 Blue 35 35
1 FrontWheel_Max 20% Color 1 Blue 43 43
1 BackWheel_Min 20% Color 1 Blue 61 61
1 BackWheel_Max 20% Color 1 Blue 69 69
1 ZStop_Min 30% Color 1 Blue 14 14
1 ZStop_Max 30% Color 1 Blue 14 14
2 Z_Nut 30% Color 1 Blue 6 12
1 X_Belt 30% Color 1 Blue 6 6
1 YZ_Plate_Min 25% Color 2 Black 388 388
1 YZ_Plate_Max 25% Color 2 Black 388 388
1 Y_Belt_MinF 30% Color 2 Black 12 12
1 Y_Belt_MinB 30% Color 2 Black 15 15
1 Y_Belt_MaxF 30% Color 2 Black 29 29
1 Y_Belt_MaxB 30% Color 2 Black 38 38
1 Y_Belt_Max_Lock 30% Color 2 Black 3 3
1 Y_Belt_Min_Tension 30% Color 2 Black 5 5
1 Y_Belt_Min_Lock 30% Color 2 Black 3 3
1 Y_Belt_Max_Tension 30% Color 2 Black 5 5
1 Z_Stub_Min 30% Color 2 Black 22 22
1 Z_Stub_Max 30% Color 2 Black 22 22
3 Brace_### 30% * See Brace note below Color 2 Black 72 216
1 Brace_### 60% Color 2 Black 83 83
1 Brace_Max_### 60% * See Brace note below Color 2 Black 88 88
7 Y_Clip_### 30% No more than 300mm center to center Color 2 Black 15 105
5 Hose_Hook_## 30% Print one for each Brace Color 1 Blue 6 30
1 Makita 30% Print info in the part description Color 1 Blue 155 155
1 Board Box (Jackpot) 20% Need to update after published Color 2 Black 75 75
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Buying metal is hard. When I went to pick it up, I owed $15 but didn’t have to pay it.

Then they also told me I get the “drop” (extra?)

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So I have an extra 152" of rail now.

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Did you go there with a gun and rob them? :joy:

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What a great Friday!

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Trying to come up with my color scheme.

I think this red part (1) is X_Belt, but what is the (2) black part called that it screws into?

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Brace_MAX I think. Or something close to that anyways

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Oh you are right. I didn’t realize it was built into the brace. Perfect.

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Started the core on my old slow Prusa. See you in 22 hours!

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@vicious1 :heart_eyes: How could you not smile holding a core? This is so amazing in person. We should bring one to the next maker event.

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Galaxy black in 0.2mm layer height? Really stunning. <3

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Very similar. Will be using that too.

This is Polymaker PolyLite PLA in Galaxy Dark Blue. 0.6mm nozzle, 0.3mm layer height

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When cutting the struts -

It seems like Estlcam doesn’t include the dogbone feature when you use the part operation. Do I have to choose overcut on each of the inside corners? I didn’t initally and wondering if I should rerun my toolpath.

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In the pictures of the completed LR4, it doesn’t look like this hits anyways?

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First time cutting aluminum (5mm). It went perfect. No air / no coolant. Trochoidal milling

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Used the same settings as @Jonathjon (Thank you!)

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Bit was ice cold / room temperature immediately after the job finished.

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What bit did you use? I have to commit to my first alu cuts on my lr3 this week. Your results look great! How much does the plate weigh?

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Awesome!

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Same one I use for just about everything. It is awesome and lasts a long time.

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Also just for those following along. Remember that you absolutely don’t need to do Aluminum. In fact, the LR3 that cut this out has MDF strut plates.

I am just playing. Don’t get stuck feeling like you need these.

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This is quite a bite. Phew.

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I think most are planning to try it for the XZ plates. But still awesome to see more and more people trying it!!

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