My first few syringe tanks had problems. They were a pain to fill, and I was always concerned that they'd slide off the carto.
So here's my latest and greatest.
Instead of making grommets out of syringe plungers, I made caps out of faucet washers. For each of the two caps, two washers. One fits on the inside of the tank, one goes on the outside. Details lower.
Instead of leaving them mobile, I crazy glued them to the tank. No leaking, no losing caps inside the tank. Filling is a breeze -- just pull the carto out a bit, fill, and push it back. Caps don't move out of place.
Cap details:
1. Sharpened the edges of an old burnt carto, and punched it through 4 washers.
2. Made the holes inside them a bit bigger with a dremel and an abrasive cone. Kept sanding them until I was happy with how tight they were on a carto. Now the carto only moves if you twist it -- doesn't slide up and down at all.
3. Stuck a washer onto the same dremel cone, and spun it against a piece of sand paper to make the outer edge. The internal one fits inside the tank, the external one fits just outside the tank. I sanded the external one to be flush with the tank's outside wall.
4. Glue the outside and inside washers together (carefully not to glue them to the carto
).
5. Glue the new cap into the tank
6. After glue dried, I ran the same dremel cone carefully on the inside of the cap, to remove any glue that may have squeezed out.
So here's my latest and greatest.
Instead of making grommets out of syringe plungers, I made caps out of faucet washers. For each of the two caps, two washers. One fits on the inside of the tank, one goes on the outside. Details lower.
Instead of leaving them mobile, I crazy glued them to the tank. No leaking, no losing caps inside the tank. Filling is a breeze -- just pull the carto out a bit, fill, and push it back. Caps don't move out of place.
Cap details:
1. Sharpened the edges of an old burnt carto, and punched it through 4 washers.
2. Made the holes inside them a bit bigger with a dremel and an abrasive cone. Kept sanding them until I was happy with how tight they were on a carto. Now the carto only moves if you twist it -- doesn't slide up and down at all.
3. Stuck a washer onto the same dremel cone, and spun it against a piece of sand paper to make the outer edge. The internal one fits inside the tank, the external one fits just outside the tank. I sanded the external one to be flush with the tank's outside wall.
4. Glue the outside and inside washers together (carefully not to glue them to the carto
). 5. Glue the new cap into the tank
6. After glue dried, I ran the same dremel cone carefully on the inside of the cap, to remove any glue that may have squeezed out.
