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Voting for this month's Guitar Of The Month contest is now open! Regular members can cast their vote over here:
http://www.projectguitar.com/forums/topic/49008-guitar-of-the-month-vote-july-2017/

 

Prostheta

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Everything posted by Prostheta

  1. BEER! What's in your fridge?

    It should be there now. Admin don't get reputation scoring.
  2. I voted on the first one I would pick up if I were in a room with them. Even then I had my doubts as to whether it was what I would actually do.
  3. This month's vote was another difficult one for me. KnightroExpress, "Exploder MS8" Andrew - every single build you're presenting show an exquisitely clean process beginning to end. In fact, I only ever recall your malicious pillar drill ever causing you any grief or causing errors. Keep up the solid work, and thanks for sharing it with everybody! StratsRdivine, "Mr. T" Built for the stage, unashamedly. I'm not a big fan of sparkly stuff, however having been given a privileged insight into the creation of such unique materials and your complete absorption in mastering them, I can't not be in awe. 2.5itim, "N12" Second entry, and look at what happens....everybody climbs out of the woodwork (literally) and dumps a hard contest on us, right? Any other month, this would hit it out of the park without a second glance. boroducci, "Axmin alpha" Hah! Like Chris says, "Dear super-cool-bass-back's finish... I CHALLENGE TO YOU BATTLE". This is totally a super cool bass, and not just the back. verhoevenc, "Model 1 - MASSIVE ACCESS" Your designs have been gradually evolving over a period of years Chris, and this looks like a very worthy iteration. Shame we don't see any build porn these days. Andyjr1515, "Psilos ultra-modern bass" Unadorned and wacky. I keep vacillating on whether it looks light, would feel weird or sit right. It's constantly breaking my brain. Simple, raw and for purpose.
  4. Our experiences with the Triton TSPS450 oscillating spindle sander were somewhat mixed. It was our opinion that it represented a great tool for the money in spite of it being a simple badged Far Eastern import with cheesy design and less than durable build quality. For the home gamer it would be a great addition to a workshop, as long as it didn't crap out within a few hours like ours did. Also a badged import product, Triton recently introduced the TSPST450 which has almost the exact same specifications as its sibling. Add onto this the tiltable worktop and belt sanding unit it seems a very attractive alternative for relatively little additional cost. ----==---- Description The Triton TSPST450 is a light duty benchtop machine driven by a 450W fixed-speed motor. The tabletop measures 430mm x 410mm (~17" x 16") and is made from two pieces of cast aluminium. The front half is capable of being angled up to 45° from flat, allowing angled sanding. The body of the machine is simple economical polypropylene, same as the TSPS450. The oscillating 13mm spindle can be fitted with one of five sanding sleeves; a 13mm sleeve fitted directly, or a 19mm, 26mm, 38mm or 51mm on rubber drums. The belt sanding unit provides a flat sanding face by simply dropping the unit into place and securing with a plastic thumbwheel. Power is managed by a single magnetic safety switch which prevents the units re-engaging should mains power be lost and re-established without manually disengaging the unit. Dust collection is provided through a single 38mm side-mounted port. All accessories and parts can be stowed around the body of the sanding unit for easy access. Straight of the box - what you get ----==---- In Use In its spindle sander configuration, the unit performs similarly to the TSPS450 and sounds just as loud! Without taking a peek under the hood, it is expected that the motor configuration is more or less the same, ie. a dual belt drive running the spindle and oscillation. These belts work by driving a pair of plastic rotary cams; one connected to the main spindle's rotation and the geared at a marginally-different speed to the first to actuate the vertical spindle motion via a cammed profile. Whilst not idea from a design standpoint, it is to be expected at this price range. The belt sanding unit however was a completely different story. This is simply driven by the spindle at one end and left to move freely at the other, retained loosely by a tiny plastic guide. Operating, this produces excessive vibration as the linear up-down motion is not restrained or guided properly. As a belt sander this is completely useless; the vibrations cause the flat sanding face of the belt to rattle back and forth making any delicate operation impossible. Checking the setup confirmed that this is just a product of poor design. A small piece of plastic retaining and guiding the non-driven end of the belt sanding unit is poor; any sort of play here would result in a useless vibrating mess, which is what it ended up being. The body of the unit has four bolt holes, with the intention of it being mounted securely to a benchtop more or less permanently. This isn't convenient for most (myself included) and reveals another problem with the belt sander; presenting a workpiece (such as the back of a neck) with any reasonable surface area to contact the belt causes the unit to climb along! The weight of the unit is simply insufficient to work reasonably as a free-standing machine; whilst the design intent is as a fixed unit, those of us that need to make the most of a limited shop space will find this a frustrating issue. Physics are just not on its side. Hooking the dust collection port to the shop extractor showed a reasonable extraction level, but one that loses a lot of power where it counts; the port pulls air from the entirety of the open recessed area in the top plate, slowing down air velocity and resulting in poor extraction even with the cover plates. Dust in both spindle and belt sanding modes was thrown around the unit with perhaps half being taken away. In comparison to the TSPS450 spindle-only sander, this is a drastic step down in performance. ----==---- Analysis Compared to the TSPS450, this unit is clearly worse on many levels. Whilst its function as an oscillating spindle sander is more or less comparable (extraction excepted) it fails in almost every other aspect. The aluminium top (unlike the TSPS450's cast iron top) makes the unit light and prone to movement (unless bolted down) and several key points call the units long-term longevity into question. The main spindle drives the drums and sanding unit using one small keyed plastic disc. All of the force required to operate the unit is the equivalent of having a plastic clutch plate in your car! If you're the type to look for signs that a product is "engineered to fail", you'd be looking no further for a smoking gun. On the other hand, you could call this "failure to engineer". This interpretation applies equally to the awful method of translating the reciprocating motion of the spindle into linear motion of the sanding unit. Nothing about this speaks of quality, durability or simply being fit for purpose. ----==---- Conclusion Items and tools purchased for review accurately reflect buyer's remorse. That said, if this tool were received for review free we would simply not be publishing a review. More likely, firing an email back asking whether this machine was a private joke and checking whether it was April yet. The TSPST450 is available from a number of different brands other than Triton, same as the TSPS450 is. It is not a Triton design, simply one ordered in Triton's livery and branded along with the rest of their product lineup, so it might be kinder to say that this may not represent the standard to which Triton's own-design products are made. That said, Triton put this out there alongside their own products so it will represent the perceived standard of the Triton brand on the whole regardless. As stated in discussion with PowerBox/Triton's media relations, we are willing to be proven wrong by their other products. Buyer's remorse is a powerful thing however, and I personally won't take another chance on a Triton tool. We received this machine as an "upgrade" (paid) exchange for the TSPS450 that developed an early electrical fault. Given the small timeframe between working with that machine and comparing it to this one, it would be impossible not to make direct comparisons when the are so similar in specification, common parts and their provenance as badged imports. The TSPS450 succeeds purely because it is unbelievably simple, and under the crappy exterior that's what this unit is in principle. It fails by attempting to add complexity whilst simultaneously killing durability, reliability and quality. And increasing the price tag. For your money, the TSPS450 stands head and shoulders above this sorry mess. Whilst the TSPS450 doesn't buy you the oscillating belt-sander capability, neither does this one. Move along or buy the TSPS450, bearing in mind that other brands offer the same unit a little cheaper and likely with a less obstructive warranty than Triton's "3yr but only if you register within 30 days, and even then you'll have to pay for it to be pinged around our very few service centres worldwide". Same same. Only different?
  5. Introducing Walrus Guitars

    Nothing wrong with producing something that is left of your usual centre.
  6. Lots of crazy, and all in the right places. Crikey....
  7. Introducing Walrus Guitars

    Looks fine to me. Just trying to figure out how you did the neck joint, then noticed the neck pinstripes halfway up the heel. Damn clean work....she looks like a fun one.
  8. Press fittings

    +1 on the drill press for this. Clamps are fine and the studs will move into alignment anyway.
  9. Kemp Guitars UK Build Thread #2

    Looks fine now. Glitches are to be expected with major software upgrades I guess.
  10. Kemp Guitars UK Build Thread #2

    Also, I think you could do with an avatar. The new software upgrade should have forced the absence of one to a "K" as the first letter of your screen name. Not sure why not.
  11. Kemp Guitars UK Build Thread #2

    I wouldn't bother too much! haha Over here we mostly have Betula pubescens or "Downy" Birch. Was over in Tampere on Friday, walking around the arboretum checking out all of the exotic trees there. The leaves of Betula pubescens pirkkanmaa were smaller like a dwarf Maple which was cool. A bunch of different Fraxinus (Ash) such as Excelsior and Nigra, plus some absolutely amazing white Oaks. Beautiful trees, and not all exotic as such....simply nice to see examples of the woods we use in their natural state and dimensions. It's surprising how so many of them don't grow to large sizes, yet we expect big bits of lumber to come from them with large radii growth rings....
  12. Kemp Guitars UK Build Thread #2

    Torrefied is the real term for "heat-treated", "thermowood", "caramelised", "roasted", etc. It certainly smells like baking sugary biscuits when you sand it!
  13. Kemp Guitars UK Build Thread #2

    Oops, sorry.... I'm an idiot! It's still too dark for Birch though. It looks more like torrefied Birch then. That would explain the biscuit smell. Does it have a slight shine to it also....?
  14. Kemp Guitars UK Build Thread #2

    Is the grain crosslinked, and does it tear out either with or against the grain?
  15. Kemp Guitars UK Build Thread #2

    It's certainly not Birch then. Some woods remain a mystery unless you have more clues to go on. That ribbon-striping is very very distinctive though. Are you 100% that it isn't Sapele? I hate asking that since it's one of the first woods one learns when encountering modern "Mahogany alternatives".
  16. BEER! What's in your fridge?

    Unfiltered. For her pleasure.
  17. Kemp Guitars UK Build Thread #2

    Does this seem more familiar? What's the provenance of the timber? http://www.wood-database.com/river-birch/
  18. Exotic woods guitar, Advise and Tips Needed

    The other woods have plenty of resistance to bending under string pressure, however Koa is far lower in terms of stiffness. It will work similarly to genuine Mahogany in principle, so you should be okay unless tension is silly high.
  19. The Luthier's Pantograph

    @Mike.Mara made a few very useful suggestions re: stylii. Having given them some thought (and that this is something that I'd like anybody to be able to build) I decided to use 10mm aluminium tube. Instead of turning down solid rod, epoxy in cheap drill bits! Nice. By using the next size of drill bit than the stylus requires in larger cutter sizes, the cuts they make will be undersized. The 1,0mm size is for the final cuts. 1mm cutter - 3,0mm stylus - final cut 1,5mm cutter - 5,0mm stylus - 0,167mm spacing 2,0mm cutter - 6,5mm stylus - 0.167mm spacing 2.5mm cutter - 8,0mm stylus - 0.167mm spacing 3,0mm cutter - 10,0mm stylus - 0.33mm spacing That leaves the 3,0mm cutter as the roughing bit, and a choice between the middle three sizes for moving towards the final size and into details. I have a lot more aluminium tube left and a full set of cheap drills, so I could feasibly make a few more intermediate sizes. Fitting them into the tube was fun, and needed some thought. The 8,0mm went straight in of course. The 6,5mm bit needed a few wraps of painter's tape. The 5,0mm had a couple of layers of heatshrink and a bit of tape. A length of a pencil fitted neatly into the tube for the 3,0mm stylus. Neither masking tape nor heatshrink are going to keep the stylus tightly centred, so I chucked up each rod in a hand drill and ran it to check for concentricity. I'll show methods of guaranteeing this when the project goes to video.... The pencil will need centre drilling. Again, that's a fun thing for video!
  20. The Luthier's Pantograph

    An idea I was throwing around yesterday; a reduction-based pantograph specifically for the luthier to do inlaying on fingerboards and headstocks. For those unsure of what a pantograph is, it's a simple mechanical system capable of duplicating a pattern of movements with opportunity of ratio alteration, eg. doubling the size of the original. https://en.wikipedia.org/wiki/Pantograph The project bounds are simple: benchtop-sized unitworks with a Dremel or end-pen type milling toolapproximately 5:1 - 4:1 reductionsimple templating systemsimple centring and alignment systemI'll draw some CAD sketches over the coming weeks and develop a prototype. The end objective is to have a full design supported with a complete how-to published within a month or two.
  21. Kemp Guitars UK Build Thread #2

    You're spot on about Birch having a very natural low and high end. I'm having trouble seeing how that's Birch though....it should be more or less like Maple than anything....unless it's the lighting, that resembles Sapele or something along those lines more than Birch. Is it super-heavy?
  22. 24 Magnum

    Chris, I am speechless on so many levels here.
  23. I really dig the contrast between the traditional and the modern in one instrument. Bummer about the sandthroughs but it looks sweet as hell anyway man.
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