Whoa!!!



Whoa!!!
What is this spray? Is it specifically for drilling into metal?bodhi wrote: ↑Sun Jan 31, 2021 11:29 amWe're in pretty tight lockdown right now ever since early December, so have been pretty much unable to do anything larger scale with my guitar projects for a while now, since I don't have access to a proper workshop. In the meantime over the last few days I've been doing some light metalwork and assembly on a cakepan tube-amp testbed, which is taking surprisingly long, but should allow me to do some quick work with testing and verifying proper amp and tube pedal builds and possible mods. I've learned the suprisingly high usefulness of having a drilling spray for the bits, they basically go through almost like butter instead of grinding through.
If all goes to plan I should have a handful of amps and some preamp pedals done by the end of the year...
It's an aerosol cutting oil, you should probably be able to google that and find the local variant. Essentially a kind of lubricant that reduces heat build-up and friction between the drill bits and the aluminum (in this case), reducing wear on the tools and making a far quicker job of it. Using a 2mm increment step drill bit and a two-handed wall socket drill at a reasonable setting, the 28mm holes for 6v6/6L6 and similar sockets took a bit less than a minute each to drill, compared to me having problems with torque with the smaller (up to about 14mm, whatever the closest imperial thingie is) step drill bits without the spray. I find even without the spray step drill bits are a lot better for making holes in metals than most straight drill bits, I believe mainly cause the heads have a slighly less rounded shape that makes for more efficient cutting.Norrin Radd wrote: ↑Sun Jan 31, 2021 12:10 pmWhat is this spray? Is it specifically for drilling into metal?bodhi wrote: ↑Sun Jan 31, 2021 11:29 amWe're in pretty tight lockdown right now ever since early December, so have been pretty much unable to do anything larger scale with my guitar projects for a while now, since I don't have access to a proper workshop. In the meantime over the last few days I've been doing some light metalwork and assembly on a cakepan tube-amp testbed, which is taking surprisingly long, but should allow me to do some quick work with testing and verifying proper amp and tube pedal builds and possible mods. I've learned the suprisingly high usefulness of having a drilling spray for the bits, they basically go through almost like butter instead of grinding through.
If all goes to plan I should have a handful of amps and some preamp pedals done by the end of the year...
Mind you, the best tool for this is supposed to be a sheet metal hole punch, but the step drill bits work fairly well, and I haven't really tried to clean up the holes other than using a file to level down the edges. They'll get covered up by the sockets in any case, so not sure what I'll end up doing on the final builds yet.bodhi wrote: ↑Sun Jan 31, 2021 12:27 pmIt's an aerosol cutting oil, you should probably be able to google that and find the local variant of that. Essentially a kind of lubricant that reduces heat build-up and friction between the drill bits and the aluminum (in this case), reducing wear on the tools and making a far quicker job of it. Using a 2mm increment step drill bit and a two-handed wall socket drill at a reasonable setting, the 28mm holes for 6v6/6L6 and similar sockets took a bit less than a minute each to drill, compared to me having problems with torque with the smaller (up to about 14mm, whatever the closest imperial thingie is) step drill bits without the spray. I find even without the spray step drill bits are a lot better for making holes in metals than most straight drill bits, I believe mainly cause the heads have a slighly less rounded shape that makes for more efficient cutting.Norrin Radd wrote: ↑Sun Jan 31, 2021 12:10 pmWhat is this spray? Is it specifically for drilling into metal?bodhi wrote: ↑Sun Jan 31, 2021 11:29 amWe're in pretty tight lockdown right now ever since early December, so have been pretty much unable to do anything larger scale with my guitar projects for a while now, since I don't have access to a proper workshop. In the meantime over the last few days I've been doing some light metalwork and assembly on a cakepan tube-amp testbed, which is taking surprisingly long, but should allow me to do some quick work with testing and verifying proper amp and tube pedal builds and possible mods. I've learned the suprisingly high usefulness of having a drilling spray for the bits, they basically go through almost like butter instead of grinding through.
If all goes to plan I should have a handful of amps and some preamp pedals done by the end of the year...
For deburring the holes...buy THIS little tool; cheap and effective. One of my favorite tools.bodhi wrote: ↑Sun Jan 31, 2021 12:33 pmMind you, the best tool for this is supposed to be a sheet metal hole punch, but the step drill bits work fairly well, and I haven't really tried to clean up the holes other than using a file to level down the edges. They'll get covered up by the sockets in any case, so not sure what I'll end up doing on the final builds yet.
Those pickups look super cool. I love the idea of reversible mini-humbuckers.HorseyBoy wrote: ↑Sun Jan 31, 2021 2:43 pmJazzmaster on the (kitchen) bench for a new set of pickups, these Wide Range Mini Humbuckers from Lance Amplification (via Harvester Guitars).
Pickups are intriguing in that they fit on a Jazzmaster plate and match the standard pickup covers perfectly, but you can see that they are offset from the plate and the orientation can be switched, effectively moving the placement of the pickup (closer to or further away from the bridge or neck). If you leave enough wire, you can switch the direction around simply by loosening or removing the strings and undoing the screws. You'll also see they're a little deeper than standard JM pups, so I pulled out the Fender foam and put some new foam in its place.
They sound great, too!