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modifying the cheap stepper motor Howard Ind. 1-19-4200 from unipolar motor...
From time to time NEMA17 stepper motors from Howard Ind. are sold very cheap at places like ebay or pollin.de for as low as 1 or 2€. A few months ago I got a bunch of Howard 1-19-4200 motors at...
View ArticleHelp Inconsistent Steppers (no replies)
Hi Folks: I'm at my witts end. I'm working on a Sumpod Aluminum. I have a proper Marlin firmware modified for the machine (provided by our friends that have the same working machine). Here's what I...
View ArticleMotor Friction torque (no replies)
Hello i demand a total amount of friction torque. (Tf=To+Tb+Tj, To=friction torque of bracing shaft, Tb=friction torque of free shaft, Tj=friction torque of motor shaft, according to the ball screw...
View ArticleFiner step angle (7 replies)
Hello, I was looking for a NEMA17 stepper motor for the second extruder I am making. I stumbled on to this web site, which sells a few variety of stepper motors. The price looks decent, too. However,...
View ArticleNEMA 17 VM42HT47-1684A (2 replies)
Hi All! I would like to build a 3d Printer (Prusa Mnedel i2). My question is: Is it possible to use NEMA 17 VM42HT47-1684A? Specification in attached file.
View ArticleTB6600 wiring help (4 replies)
kindly someone help me in wiring a ebay tb6600 board to parallel port i am having doubt in EN- and pul- [www.ebay.com]
View ArticleBlocked Nema17 Stepper motor (1 reply)
Hello everyone, today i was running one of my first ever prints. It went perfect, until my x-axis blocked en the whole print was failed. I have a Nema 17 stepper motor, i feed it 0.4V. I can't even...
View ArticleStepper Motor juddering and reversing direction (no replies)
Hi I am having a strange issue with one of my Nema 17 z motors (the end that carries the X axis motor) After working fine for about 3 hours, it will now only judder or move in in 1 or 2 1/4 rotations...
View Articleneed to buy crimp housing for wires (no replies)
the original wires for stepper motors are too short so I decide to make a new one for myself , what kind crimp housing and terminal should I buy and where can I buy them ? I search online and only...
View ArticleUrgent Mendel90 Question (2 replies)
Hi everyone. Im busy sourcing parts for a mendel 90 and wanted to know... It specifies the motor length to be 47.5mm but would a shorter stepper also nema 17 as requested work? Also, in the BOM it...
View ArticleSome general motor questions (1 reply)
Hey everyone, I'm new to the forum. I've been reading it for quite some time building my Prusa i2 and everything has worked out wonderfully. As an 18 year old engineering student I have neither time...
View ArticleUnidentified Japan Servo steppers (11 replies)
Hello, i just foud this two steppers which i can not find online as a product, i wonder if i could use them as the plate says they are: small one: 30 Ohm 2.6v 1.2A seems NEMA17 - Model: kh42jm2b247...
View ArticleBerger Lahar RDM 599/50 5 phase motor and Berger Lahar D450.01 Driver (no...
Hello Friends I have a broken machine equiped with a Berger Lahar RDM 599/50 5 phase stepper motor and controled with a Berger Lahar driver D450.01. Seems the driver is broken, but I do'nt have the...
View ArticleStepper Motors won't turn (2 replies)
So I build this Prusa Mendel I2 printer using the full kit from Charlie's 3d Technologies. After assembly I really wanted to upload the firmware and simply make the printer move. Unfortunately it...
View ArticleCan i use a servo on the extruder mechanism for a repstrap? (2 replies)
Hi I saw a lot stepper embed on the, but the task for this is just the ABS for melt, that´s the reason for my question replace the stepper by a servo. what do you think?
View ArticleStepper selection - voltage confusion. (6 replies)
Im getting really confused about stepper motor selection. I am building a new large printer using the ramps 1.4 and DRV8825 driver from a 12v supply. I already have a mendelmax using this setup except...
View ArticleOk I think I made a mistake buying these (5 replies)
Hello there I wanted to build a repstrap... so ...with too much precipitation I bought those three unipolar (6 wires) Japanese 1,8° Mineabea stepper motors. 23KM-K036-18D shaft OD is 8mm ==>so this...
View ArticleWhich stepper to buy: 68oz 0.9degrees or 70oz 1.8degrees (12 replies)
I've been looking at 3d printing for a while now and finaly decided to take the leap and get into it (Can't wait!!!! :D :D ). I'm looking at building the Rostock: [reprap.org] The build platform isn't...
View ArticleNew Project (5 replies)
I have a new brainstorm project that I would like to develop that involves stepper motors and possibly some optic tracking device and maybe some solenoids. Is there anyone out there willing to take me...
View ArticleExtruder Stepper Not Working (1 reply)
Hey All, I recently replaced my extruder head and it required a change in the extruder motor direction. So I swapped the wires for the stepper motor to change the polarity of a coil and now the...
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