Here is a rubber hose clamp handle I design for the clamp supplied with the GF. I 3D printed it with NinjaFlex SemiFlex which is a stiff rubber when printed with 100% fill.
I designed it for 1/8" wire but it is fully parametric in OpenSCAD. It is shown here on the shank of a 1/8" drill, where it is a snug fit. Being rubber it will accept a bit bigger. 9/64" is a tight fit.
I know what I’m going to be printing as one of my first practical 3D projects. I have barely gotten an understanding of ABS/PLA fundamentals so the other materials I have a lot to catch up on. Been watching Makers Muse YouTube videos. I met him at BAMF and he was such a nice guy. Super videos. Thanks for posting.
Another way to make handles is with Polymorph. That is polycaprolactone plastic than can be melted in hot water and moulded by hand. So you can warp it around the clamp. When it cools it hardens like HDPE and it contracts slightly so will grip the metal.
Oogoo, which is a diy version of Sugru, is another good option. It’s basically just silicone mixed with cornstarch (recommended to get the 100% silicone that doesn’t have various weird petrochemical additives added if you plan to touch it a lot or use it around food).
Yes looking up the number in the MSDS for Friendly Plastic it is indeed PCL. I have a spool of it and 3D printed a few objects in the early days of RepRap. I haven’t noticed it going brittle. In fact the opposite. The filament is very flexible and was difficult to extrude in the extruder I had at the time, nothing compared to 1.75mm Filaflex nowadays. That is like pushing string. The printed objects were also surprisingly flexible because when it is solid it very rigid.
Caveat: When I say “brittle over time” I am thinking specifically of the minifig accessories that I made 20-30 years ago. They were flexy back then. They are brittle now. That’s a long time, plastics age. I don’t hold it against the product.
One of the most frequent things I had to replace during my stint as a business phone referbisher was the plastic covers that went over the button/ label area. Some not even 5 years old and had gone from whiteish/clear and flexible to yellow and brittle.
Channel locks might work ok or a small squeeze clamp (ha, that’s meta. a clamp to squeeze a clamp. I often use a squeeze clamp to keep somthing open while affixing and then fliip the release trigger and everything falls in place). Part of it is going to be hand strength, finger strength and size of fingers and the position you are in and the hose is in when you are clamping. Since the wire is around 1/8" it’s putting a lot of force in a small area of your finigers. Spreading the force on to handles makes them not so difficult to hold open. Probably easier than a mitral valve repair, but it does kind of map to what @henryhbk has been working on, syncronizing three round things (hose, exhaust outlet and clamp)but having only two hands!
Yes, that’s what I typically use on this type of clamp. I suppose having handles like @palmercr designed could be more convenient if you are connecting your exhaust hose every day and then removing it at the end of the day.
First off - I’m sorry that this is delayed, a ton of craziness has happened between now and receiving my Glowforge.
@palmercr was nice enough to print me out a set of these handles and mail them to me from across the pond! I’ve had them for about a week and would like to report on how they work with the supplied clamp.
After using these I reverse my decision about the supplied clamp being the bane of my existence. With these handles its actually pretty easy and I could see how it will be preferred to the screw type clamp I mentioned earlier in It happened! I can quickly disconnect it if needed and they apply just the right amount of force to keep the hose on without any potential damage.
As you can see they are a tight fit because of how close the clamp needs to be to the Glowforge. Making them a little narrower (by say an 1/8? on each side?) would prevent them from interfering with the side of the machine. The other bit that took some getting used to is that because they are flat and mounted in the center on a spindle they tend to want to pivot on you when you are applying pressure. I wonder if both issues could be solved by making it round (more like a dowel).
Thanks again @palmercr - it was very kind of you to send these to us and it just goes to show how amazing this community it
This is cool. Thanks @palmercr for making this clamp usable. They are very handy but the ends just are painful to pinch for my fingers. We have a saying in the ministry: these hands are for chalices, not calluses.