Made these about 2 years ago when I bought my Mini Lathe. Probably the most used shop made tools that I have for the lathe. The first picture (0000) shows the original setup except for an extra hole (between the two counter bored holes) and an extra cap screw near the back. These are updates that I just did today. Their purpose is for the addition of the eccentric clamp. Following that in picture (0001) are all of the pieces prior to assembly of the revised units. Picture (0002) shows the micrometer stop. Note that it is useable for either right hand or left hand mounting. On the bottom of the main block there are 4 4-40 set screws in a line across the block. Two of them lock the micrometer head from the right and the other two would be used when it is reversed for left hand use. Picture (0003) is the screw type stop and it is also useable either right or left hand.
The remaining pictures just show various views of the stops ready to be installed on the mini lathe.
The two counter bored holes in each stop were used for the original clamping action. They work fine, clamp tight but are not very fast to use even with the custom hex key wrench. I saw the bicycle seat clamps being used for tool clamps and made the upgrades to my clamps. I still keep the allen cap screws loosely installed just to keep the clamps together when I take them off the lathe. Also keeps the chips out of the threads.
The lever clamps are about 1$ each but take about 4 weeks for delivery..Oh well, I did not have to spend shop time on them and they are certainly worth the 1 buck. Check the bay for the clamps.