I have a repstrap that I built myself, and it uses a gearbox for the Y axis. My prints aren't terrible, however they are shifted along the y axis. I was wondering if anyone has any ideas on how to fix it. I'm kinda thinking its something to do with the gears/belt. https://reprap.org/forum/read.php?1,187862,187862#msg-187862 Tue, 11 Aug 2026 05:01:55 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,187862,188656#msg-188656 https://reprap.org/forum/read.php?1,187862,188656#msg-188656
I used these for the L298
[dx.com]

and I bought 5x L297's on ebay from china for less than $6 shipped.

In hindsight if I were going to do it again, I would roll my own big board and have it professionally made......... as you can see, there are A LOT of wires. I went with the L298 boards because they have the diodes, board, L298, heatsink, etc. However if you buy this board, you will need to add a filter cap and preferably a bigger electrolytic on both the motor (12 or whatever you chose) and ic supplies (5V), because there are none and all the electrical noise will cause strange things to happen/ not happen.

The board with the micro is very simple. I chose an 18.432 mhz crystal to insure comms are as error free as possible. Check out http://www.wormfood.net/avrbaudcalc.php The atmega328 does not use an arduino bootloader, I have a $7 programmer from ebay I use. Works well.]]> Matt_G General Fri, 01 Mar 2013 08:20:28 -0500 https://reprap.org/forum/read.php?1,187862,188548#msg-188548 https://reprap.org/forum/read.php?1,187862,188548#msg-188548 jamesdanielv General Fri, 01 Mar 2013 03:14:19 -0500 https://reprap.org/forum/read.php?1,187862,188522#msg-188522 https://reprap.org/forum/read.php?1,187862,188522#msg-188522
If anyone is interested in checking my repstrap out......... it's not pretty but it does work.

[www.youtube.com]]]> Matt_G General Thu, 28 Feb 2013 22:30:42 -0500 https://reprap.org/forum/read.php?1,187862,187902#msg-187902 https://reprap.org/forum/read.php?1,187862,187902#msg-187902 jamesdanielv General Tue, 26 Feb 2013 20:48:21 -0500 https://reprap.org/forum/read.php?1,187862,187862#msg-187862 https://reprap.org/forum/read.php?1,187862,187862#msg-187862 Matt_G General Tue, 26 Feb 2013 17:23:09 -0500