"Origami" CNC Plasma Build - folding 1200 x 600mm cut area
19 Jul 2021 02:28 #215280
by Joco
Replied by Joco on topic "Origami" CNC Plasma Build - folding 1200 x 600mm cut area
Tommy - yes I have read through that build many times. Was never too sure if it was 12, 16mm or larger rods in use.
I would need to source rod, bushings, RHS on that build. With the design I am pursuing I have everything other then the lead screw on hand. But I do rather like how contained your design is.
cheers - J.
I would need to source rod, bushings, RHS on that build. With the design I am pursuing I have everything other then the lead screw on hand. But I do rather like how contained your design is.
cheers - J.
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19 Jul 2021 10:16 #215306
by tommylight
Replied by tommylight on topic "Origami" CNC Plasma Build - folding 1200 x 600mm cut area
That is not important, the part with 2x M10 screws is what you should have a look at amd the switch, it saves a lot on parts the way i did it.
Sorry to put you through a long topic, but am on the phone so a bit hard to search.
Sorry to put you through a long topic, but am on the phone so a bit hard to search.
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19 Jul 2021 11:47 #215314
by RNJFAB
Replied by RNJFAB on topic "Origami" CNC Plasma Build - folding 1200 x 600mm cut area
The following user(s) said Thank You: tommylight, Joco
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19 Jul 2021 17:19 #215331
by tommylight
Replied by tommylight on topic "Origami" CNC Plasma Build - folding 1200 x 600mm cut area
Exactly, thank you.
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19 Jul 2021 19:15 #215332
by Joco
Replied by Joco on topic "Origami" CNC Plasma Build - folding 1200 x 600mm cut area
OH! Now I see what you are referring to. Slick! Wonder if i can utilise that idea with the parts I have. Hmmmm …
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19 Jul 2021 20:39 #215336
by tommylight
Replied by tommylight on topic "Origami" CNC Plasma Build - folding 1200 x 600mm cut area
Removes the need for 2 pairs of rails or two HiWin rails, so just one is required, works perfectly, i have it on 4 machines and 2 of them are in use daily for at least 10 hours a day, one of those working does 386 pierces per 2X1M plate quite often, so pretty sure any reliability issues would have shown up by now as it's in use last 7 months.OH! Now I see what you are referring to. Slick! Wonder if i can utilise that idea with the parts I have. Hmmmm …
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19 Jul 2021 21:42 #215341
by Joco
Replied by Joco on topic "Origami" CNC Plasma Build - folding 1200 x 600mm cut area
Tommy - would I be correct that the leadscrew you are using in that setup is 8mm with 2mm lead? Or is it 4mm lead? Also the brass flange nut is using M3 screws to hold it to that cross section? Just trying to guage sizes of what is being used to help ensure I don't start over engineering things for no purpose.
Cheers - James.
Cheers - James.
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19 Jul 2021 22:22 #215345
by tommylight
Replied by tommylight on topic "Origami" CNC Plasma Build - folding 1200 x 600mm cut area
It is 8mm with 8mm lead ( i am greedy for speed ), and that proved to much so using 4mm would be better.
And yes, M3 screws holding the nut to the thin plate (use at least 2mm plate, i had one break so i preemptively changed another two using the same plate), and another M3 that has no place being there, alas it is hiding my mistake!
And yes, M3 screws holding the nut to the thin plate (use at least 2mm plate, i had one break so i preemptively changed another two using the same plate), and another M3 that has no place being there, alas it is hiding my mistake!
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19 Jul 2021 22:39 #215349
by Joco
Replied by Joco on topic "Origami" CNC Plasma Build - folding 1200 x 600mm cut area
Thanks. Just working out some modeling stuff.
I have a 2amp Nema17 motor that I was going to direct drive onto the leadscrew. Given that and the motor size I have been thinking a 2mm lead so as to get the torque up. Or am I being too conservative and 4mm lead on that sized motor will be fine? I don't have much experience with how much oomph these smaller motors have as most of my stepper experience is with the bigger Nema32s.
Thanks - J.
I have a 2amp Nema17 motor that I was going to direct drive onto the leadscrew. Given that and the motor size I have been thinking a 2mm lead so as to get the torque up. Or am I being too conservative and 4mm lead on that sized motor will be fine? I don't have much experience with how much oomph these smaller motors have as most of my stepper experience is with the bigger Nema32s.
Thanks - J.
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19 Jul 2021 23:07 #215351
by tommylight
Replied by tommylight on topic "Origami" CNC Plasma Build - folding 1200 x 600mm cut area
I am using Nema 17 at 1A (they are 1.3 A) with 8mm lead, so it will do just fine with 4mm.
2mm might be to much depending on the speed required and the voltage used.
2mm might be to much depending on the speed required and the voltage used.
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