What stepper motors do I use with these electronics?

[wern5821]

Hi everyone
For a table top cnc machine I am following the tutorial from Tom Mcwire on instructables but I've noticed he leaves out important info like what stepper motors to use with that particular controller circuits. Can any of you tell me what stepper motor with the right specs I should buy and what is the best website to buy them? Below is a list of the circuits I bought from digi key. Also, do I need to buy wires or is the wires that come with the motors the only wires I need. Any info would be very helpful. thanks



Ref. Qty Description
C1 Cap 1 Capacitor 10 volt or more and about 200 uf
Part No. Mfg. Source Source Part No.
EEU-FC1J221 Panasonic Digi-Key P10346-ND

Ref. Qty Description
R1 Res 1 Resistor 1000 ohms
[if your voltage is > 15 volts this should be 1/2 watt or more]
Part No. Mfg. Source Source Part No.
5073NW1K000J12AFX Phoenix Passive Comp. Digi-Key PPC1.0KW-1CT-ND

Ref. Qty Description
R3 Res 1 Resistor 100K ohm
Part No. Mfg. Source Source Part No.
ERO-S2PHF1003 Panasonic Digi-Key P100KCACT-ND

Ref. Qty Description
Zener 1 Zener Diode [ Voltage regulator for ICs]
Part No. Mfg. Source Source Part No.
1N4735A-T Diodes_Inc Digi-Key 1N4735ADICT-ND

Ref. Qty Description
D1-D4 4 Diodes [ to clamp voltage spikes]
Part No. Mfg. Source Source Part No.
1N4004-TP Diodes_Inc Digi-Key 1N4004-TPMSCT-ND

Ref. Qty Description
U1 1 IC BCD Up/Down Counter 16-DIP
Part No. Mfg. Source Source Part No.
CD4516BE Texas_Instruments Digi-Key 296-2075-5-ND

Ref. Qty Description
U2 1 IC Decoder CMOS BCD-DEC 16-DIP
Part No. Mfg. Source Source Part No.
CD4028BE Texas_Instruments Digi-Key 296-2045-5-ND

Ref. Qty Description
Q1-Q4 4 MOSFET N-CH 100V 12A TO-220AB
Part No. Mfg. Source Source Part No.
RFP12N10L Fairchild_Semiconductor Digi-Key RFP12N10L-ND

Ref. Qty Description
R2 1 "Lamp Socket [Hldr, Lamp; Wedge; PCB; 23 Series]"
Part No. Mfg. Source Source Part No.
23-35 (PC) Lighting_Components_and_Design ALLIED Electronics 931-2335

Ref. Qty Description
Conn. 1 Connector 25 Pin D-Sub Male [You need this to connect to the computer]
Part No. Mfg. Source Source Part No.
171-025-113R001 Norcomp_Inc. Digi-Key 4225ME-ND

[amishx64]

You'll need to buy additional wire. The wire on the steppers is less than a foot long.

Can you post the Instructable link?

[pminmo]

The problem you have is current control. That is a simple full step unipolar driver similar to the tachus42 driver on my website. Depending on the power supply you use, and motors you select you will need to also implement a current limiting ballast resistor. If you built the small mill that goes along with it, then you won't need much of a motor as there is very little performance to be had.

[Jesse B]

Originally Posted by amishx64 You'll need to buy additional wire. The wire on the steppers is less than a foot long. Can you post the Instructable link?

http://www.instructables.com/id/Easy...and-Driver-ci/

There it is

Not meaning to threadjack, but I was considering making either the above linked controller, or the above mentioned Tach42 from PMinMO. Which is the better controller? Thanks, sorry again for the thread-jacking

[pminmo]

Originally Posted by Jesse B http://www.instructables.com/id/Easy...and-Driver-ci/ There it is Not meaning to threadjack, but I was considering making either the above linked controller, or the above mentioned Tach42 from PMinMO. Which is the better controller? Thanks, sorry again for the thread-jacking

They work the same way, same performance issues. Two phase full step, the tachus42 pcb has proven layout. The light bulb current limiting on the instructable circuit is less than desireable and motor dependent.

[amishx64]

Originally Posted by pminmo They work the same way, same performance issues. Two phase full step, the tachus42 pcb has proven layout. The light bulb current limiting on the instructable circuit is less than desireable and motor dependent.

If you don't want to use light bulbs: When you pick motors, you'll need to calculate if and what value current limiting resistors you need using the voltage of your PSU and the coil resistance of the stepper.

Oh and BTW, I would probably use a pminmo board layout if I were doing it from scratch.