- Reprap delta magnets and spectra line springs mods#
- Reprap delta magnets and spectra line springs plus#
Line (and belts) stretch,Īnd in this case, you aren't simply driving something with it, youĪre actively trying to control something only with Idea for mechanical simplicity is a false impression.Īrms is going to be the biggest problem. On Monday, J1:23:46 PM UTC-7, Leslie wrote: I would like to get feedback about interest - if lots of interest - it will push me to bring it to market The cost of manufacture is low and the expected price will be on the high side of current electronics. Why my comments - here is the spring tension system - add a bit more math - allow the top strings motor control not to be a fixed position - go 1000 steps to here.īut go to about 1000 steps until the spring tension is - and microsteps before or after desired position to keep top string tension as desired. Knowing some information about the stepper motor, measuring some parameters - the displacement - which is related to the motor magnetic - torque - drive current, and external force applied.
Reprap delta magnets and spectra line springs plus#
by High end, I mean on $100,000 Plus industrial equipment - The concept that I was looking at for the electronics and motor drive, this ability is possible. Some very high end motor controllers are doing this. the rotor will never go into perfect alignment. Īs was pointed out by an other post talking about how microstepping does not work - he was totally right about the magnetic forces act like a spring - and with physical load - torque on the motor from a load - weight - spring etc. I have been playing around with development of and advanced set of electronics complete with a custom designed Hardware based motor control chip - the result will be higher current drive, and more motor controls. I think a hall rotary position sensor might function homing, if I first get the spike near the home position.I banged together a sturdy (AKA probably overbuilt) chassis.So my backup plan is to use those and run the line over some small V pulleys that I just got in, which look like they will handle the +-25 degrees I'm looking for. I suspect an M16-2 or M16-1.5 spool might work, but I lack the setup to make these accurately. Cerberus drive spools _finally_ arrived (vendor had some delays - no gripes there, life happens and he kept me well informed.) Now that I have them in hand, the thread spacing (lead) is way too tight (.5 mm) to expect them to work off axis running directly to the spike.
Reprap delta magnets and spectra line springs mods#
Made 6 motor mods to smoothieware (coded & compiled, haven't started debug yet.).Coded and unit tested it against test vectors on the host. Derived the arm solution required for the motors.I have a fairly stock version of smoothieware running on a controller (NXP LPC1768 MiniDK2) This is an ARM cortex3 board.
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