Not long ago I upgraded from the original stepper motors initially offered with the controller board to the ones currently offered by Phlatboyz. That was a great improvement. Then I upgraded to a belt drive on the Y axis. Now it got faster. Still not too much power though. I could stall it with the push of a finger.

The X axis has run very well, capable of high speed and I could not stall it by hand force. How can I get the same results on the Y axis? The key is in the number of steps per inch. Looking at the reduction ratio on the X drive comes in around 7.22:1. If I can approximate that on the Y belt drive, my steps per inch would be increased greatly over the present setting. So I started doing some cyphering to see what kind of pulleys and belt I would need. Here is what I got, and it runs so much smoother in the Y axis and you cannot stall it. Easily runs up to 400 ipm. Don't get your fingers in the way!

Here is my parts list and cost for a belt, bearings, and two pulleys from SDP/SI.

Part Number Quantity Unit Price Extension
------------------------------------------------------------------------
A 6B16-095025 1 $3.52/EA $3.52 https://sdp-si.com/eStore/PartDetail.as ... roupID=213
A 7Y55-PSS5025G 4 $5.33/EA $21.32 https://sdp-si.com/eStore/PartDetail.as ... roupID=193
A 6T16-018DF2508 1 $5.81/EA $5.81 https://sdp-si.com/eStore/PartDetail.as ... roupID=218
A 6Z16-080DF2508 1 $8.08/EA $8.08 https://sdp-si.com/eStore/PartDetail.as ... roupID=218
------------------------------------------------------------------------

Subtotal: $38.73
Shipping: $11.89
Handling: $3.95
Sales Tax ( NY State Only ): $0.00
Purchase Total: $54.57

Additional material include a 6" x 4.5" x .25" 6061-T6 aluminum plate that constitutes the parts to hold everything together. Also a numer of fasteners.

Ken Attached files

 

Nice !!!

Cheers.
GHB