I’m planning to build a plasma Lowrider V2 and have a few questions regarding picking the parts and the design of both.
The end goal is to keep to a very strict budget without cutting corners, so I’m trying to research the crap out of my design to ensure I get the best possible value out of everything (I’m a bit of a scrooge).
Firstly to get it out of the way, the question regarding plasma.
Plasma HF - RF Emissions
I’ve seen a couple of plasma builds on here and researched other plasma tables, and from this research it tells me that a HF plasma is bad. Mainly bad for RF emissions that will kill electronics? / Wifi.
I would like to end up using a system which can be remotely controlled, Ie. Octoprint / cnc.js, which I assume may use wifi (I do have the option to run ethernet to it though). In saying this though i may have other wifi devices in the futures which may be a few meters away which I won’t want tampered with.
Question: Is buying a Non-HF plasma essential, or can the emissions be appropriately controlled with a HF Pilot Arc?
I was thinking surrounding the plasma torch in copper / aluminium to help reduce emissions as one idea (Obviously there will need to be a sufficient gap between it and the workpiece so it doesn’t get torched itself.
A HF Pilot Arc machine is considerably cheaper than a non-HF Pilot Arc machine, hence my question.
Low Rider v2 Controller
I see that the mini-rambo is the preferred choice for the low rider v2 controller, however as I’m in Australia, by the time i buy this board and gets shipped here it gets more expensive than I’d like.
Is there any reason why I cannot use a RAMPS 1.4 controller? Is it purely size or something else I’m not considering?
(The RAMPS 1.4 systems I’ve seen are around 1/3 of the cost of the mini-rambo system to get it here, and the ramps I’m looking at come with drivers for 5 steppers.)
GT2 16Tooth Pulleys
Will changing to a 20T pulley be compatible? Will this make it slightly faster?
I noticed the idlers are 20T.
These are my main questions so far, As I get further through the parts ordering process and design process, more questions may arise.
I really appreciate your help in advance!
I’m looking at making a collapsible / expandable table, which likely will have some sort of hinge / folding mechanism.
Will a slight 1mm gap between the table surfaces where it expands from affect the roller wheels / operation of the machine?