Take care around the edge of the cut out as you want to avoid paint creeping under the edges.
How to cut yourself interlockable part out of rubber sheet.
Without seeing the part some options are to freeze the bushing in dry ice and alcohol and it will machine like hard plastic until it warms up.
Cut the bottom out of a plastic food container.
Score the line in the acrylic with a plastic scoring blade.
Don t worry about how neat or jagged it is.
To cnc cut a gasket with a needle just stick a rubber sheet on a previously flattened working surface of your cnc machine i used double adhesive tape and start milling.
Need a smooth surface when finished.
Lathe cut rubber the lathe cutting process entails extruding a tube of rubber cutting it to a specified length sliding it on to a mandrel curing the material and then grinding the od and cutting the finished part to length using a lathe.
Any ideas on how to cut thick rubber take a sawzall blade and grind the teeth down on it like a knife so you have a knife that moves really fast up and down.
This will eventually be the top of your mold.
How do i cut smooth grind the rubber to remove the edge want to bevel the edge.
Using your ruler as a guide run a plastic scoring blade along the cutting line trying to make one continuous line with gentle even pressure.
Dip the sponge end of a sponge brush into your acrylic paint.
60 duro i believe.
This can be avoided by dabbing the paint on the edge of the design template.
Apply the paint in smooth strokes along the cut out areas of the template.
Take a 3 square block and affix a 1 8 thick piece of rubber sheet to the entire face.
I suggest you to start with a silicone rubber sheet since silicone appears to cut best with needles you will then need to experiment with feedrate and spindle speed but usually higher spindle speeds and lower feedrates work better.
Or just use a good knife you might happen to have.
Instead of plunging the blade all the way through the foam though only cut about 1 8 to 1 4 of the way through the foam.
Once your cutting line is established and your straight edge in place begin your cut just the way you did with the single pass method.
Rubber is always tough to reshape.
Use a craft blade to cut out the bottom.
Use sheet rubber of the correct thickness from mcmaster carr and cut the bushings out with a hole saw.
Parts suited for this process are washers and gaskets requiring precision to high precision tolerances.
Find a cheap plastic food container made from thin plastic.
Instructional video on how to cut rubber with a sharp utility knife to a specified length.
Pull the blade towards you along the line.