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Actually, I had a tough time also. One of the Home Depot's around me had 2.7mm underlayment, another Home Depot across town, didn't. There was also a significant difference in quality within the stack (depending on the country of origin). I removed about 25 sheets from the stack to get to the 'good' stuff. I then bought 5 4' x 8' sheets. 1/8" Baltic Birch will work also. You may have to search this out also, big box stores usually don't carry this. Try the local Hardwood lumber seller. Baltic Birch usually comes in 5' x 5' sheets, but places sell half sheets, sometimes. I just found, recently, suppliers on Etsy, though I have not tried them. Good luckhttps://www.etsy.com/listing/810929278/3-pieces-20x24-baltic-birch-plywood-18?ref=shop_home_active_3
Thanks - I added a short video of the street cutting with the laser and a few more images into step 4. Also, be sure to check out the pdf in Step 2, it has many screen shots from Adobe Photoshop and Illustrator. I believe all the matierials are listed under Supplies. Thanks
Laser Cut 3D MapView Instructable »
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Hi Bob,I don't have a separate limit switch for the A/slave axis. So, no, I can't square it up. Actually, I have all the limits switches disabled. I've been getting false triggers and I can't seem to eliminate them. It stops the program in the middle of a run and it's very irritating. I even have a RC circuit on one of the limit circuits. I'm using shielded cable also. The next thing to try is to remove the sensor wiring from the drag chains. Kevin
Nice! Send a picture when done....
Hi Bob,I uploaded the updated wiring diagram into Step 5, though it's not posted yet. Since I only have 5 inputs for limit switches on the breakout board, where's how I wired them: e-stop stayed the same on one input, both X limit switches are on one input, both Y limit switches are on one input, both Z limit switches are on one input these are all wired normally closed. The zero plate is wired on the 5th input and configured as normally open. I'll attach a photo of it. Hope this helps. Kevin
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There is also one in Helsinki.
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I bought the desktop version. Love the program. In the desktop version you can 'tile' projects, so you can make something 24" wide x whatever height. You cut a section, then shift it and cut the next section. Works well, but I've only used it twice.
I swear I have replied twice to this. Where-oh-where are my replys.
Sorry, I thought I answered this. I mounted two 3060 metric extrusions on the back of the gantry. The linear rails mounted to this through the gantry back plate. It was added to improve the stiffness.
Hi, I cut it with a 3/16" single flute cutter. I don't recall the exact cutter. I used wd40 for the lubricant. I tried the blow the chips out of the cut. It makes a mess, so I don't cut aluminum often. Yes it's 1/2" aluminum.
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Thanks for the comments. Most of the parts fit on a small sheet of paper or could be pieced with multiple sheets and taped together. The rest of the parts were measure and laid out by hand. The most critical holes were for the stepper motors to align the stepper motor to the linear screw. Good luck!
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Perfect - Thanks
Looks great - Can you post a complete wiring diagram?
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awesome....I 'd love your vote in the photography contest!
How to Create and Photograph Spiral SparksView Instructable »