|Forum topic by jimsters||posted 09-14-2011 11:27 PM||5511 views||0 times favorited||8 replies|
09-14-2011 11:27 PM
the shopnotes version seems popular and a few here have made one with a few also on youtube.
ive seen other versions that only travel vertical and use something like a u bolt with some sort of bearings, or home made bearings around the u bolt and the carriage travels up and down. if 4 u bolts are used with proper bearings i can see this being quite accurate and seems better than the t slot idea to me. there are quite a few available to buy that use this method. now if this could be also made to travel horizontally this would be a good idea.
another option is to use some sort of linear bearing for the horizontal movement, however these seem quite expensive and as im from the UK im also limited on materials.
ive gone over various methods but id like your advice on what system to use for both vertical and horizontal movements.