SoliForum - 3D Printing Community — Jigsaw Replacement mk2

Re: Jigsaw Replacement mk2

2013-01-08T02:01:24Z

Very nice! When will the new fan duct be out ?

Re: Jigsaw Replacement mk2

2013-01-08T01:34:07Z

New one is up:

http://www.soliforum.com/post/8877/#p8877

Re: Jigsaw Replacement mk2

2013-01-07T14:18:11Z

hehe, thanks.

Re: Jigsaw Replacement mk2

2013-01-07T14:04:39Z

I have taken your 'double-boss' idea and made a screw on second part that attachments clip onto without magnets. I think it's a really neat solution, and was nowhere near that solution until you posted your parts.

Re: Jigsaw Replacement mk2

2013-01-07T14:01:39Z

Very Nice!

Re: Jigsaw Replacement mk2

2013-01-07T13:54:26Z

I have a mk-III which takes the best of everything and refines them which I'll post tomorrow. Includes tensioner and clip on system for mounting fans, dial indicators, etc.

Re: Jigsaw Replacement mk2

2013-01-07T13:35:24Z

Yes. I posted the part prematurely. I'm still fiddling with it. I will repost an improved version soon

Re: Jigsaw Replacement mk2

2013-01-07T13:08:52Z

I went ahead a printed your part iteration for testing, might I suggest you thicken the section that gradates into the bed plane and cut it straight down while the end has more thickness (.5 mm or so and a couple mm from the end) The tips broke and distorted with just a small amount of force, it will make that section of the part greatly more rigid and print a bit better.

Re: Jigsaw Replacement mk2

2013-01-07T00:07:12Z

I'm no expert at Sketchup, but the Tutorials are a must for anyone who tries to use it. You need to understand the "hints" that you get when you "point" to things, and also the ways that you can constrain a point or line to lie on a point or plane. Then you need to understand the tools, one by one. The great thing about Sketchup is that there is a huge user community and if you Google something ("Make sphere in Sketchup") you are quite likely to find exactly what you need in just a moment or two. There are moments of extreme frustration, too. When working on a serious model, I usually do a series of saves (save as Fred1, then Fred2, then Fred3, etc) so that I can get back to an earlier point when it turns out I went down a horrible road. The YouTube videos are also very helpful.

I'd be happy to try to answer specific questions if you have them.

Re: Jigsaw Replacement mk2

2013-01-06T19:31:31Z

No doubt lol, I have zero mechanical engineering background/education and it was made with TinkerCAD which is really crappy for designing parts... That is why I am moving to SW12 right now, I don't really like the interface of Sketchup, but I would love to be learn to use it regardless!!! Any suggestions for improving the workflow in sketchup?

Re: Jigsaw Replacement mk2

2013-01-06T18:53:21Z

Jeffery posted some jigsaw replacement parts on 12 Dec. I found a number of problems with the tensioner. For one thing, the hole that supports the bearing was too small for the original SD bearing that I was trying to use, and attempts to drill the hole out usually ended up destroying the part. For another, some parts of the part (!) were needlessly small, making the part needlessly weak. When I took the STL, converted it to OBJ, and imported that into Sketchup, I discovered that there were some subtle problems with the model (planes that were not really planar).

I have redesigned the part entirely using Sketchup. The following are preliminary, and probably should not be printed. I will update this when they are in better shape.

Re: Jigsaw Replacement mk2

2013-01-06T17:58:53Z

jefferysanders wrote:

If the heater failed; why not just replace the heat source, heat it up and remove the filament at that point. Just pull it off otherwise, I don't think it will break easily...I stress tested the part I made by hitting with a hammer and trying to squeeze it with pliers...I still need to use the online netfabb and re-upload...(the parts are not printing right even though they look right on the display)...I am starting to build parts in SW2012 and not with TinkerCAD so my part quality will dramatically improve.

The XActo knife cut was annoying, but it worked OK. I did not have another heater or resistor to try to use instead.

Re: Jigsaw Replacement mk2

2013-01-06T17:48:18Z

If the heater failed; why not just replace the heat source, heat it up and remove the filament at that point. Just pull it off otherwise, I don't think it will break easily...I stress tested the part I made by hitting with a hammer and trying to squeeze it with pliers...I still need to use the online netfabb and re-upload...(the parts are not printing right even though they look right on the display)...I am starting to build parts in SW2012 and not with TinkerCAD so my part quality will dramatically improve.

Re: Jigsaw Replacement mk2

2013-01-06T15:08:54Z

Happy to see you up and printing again. Shortly after I installed this replacement, I had the same thing happened and used a pair of pliers to yank out the peek barrel. I think the dilemma is that the hole for the filament in the mount need to be right next to the hole for the peek. Mine actually broke down inside the filament guide section of the bottom mount since the holes weren't perfectly lined up it sheared off. One thing I bought that has been super useful is a modeling knife accessory and pin for my soldering iron. It is great for working with abs. It heats up in no time and cuts through or melts the abs like butter.

Re: Jigsaw Replacement mk2

2013-01-06T13:31:20Z

I am having problems figuring out how to disassemble the new jigsaw replacement in the circumstance where the heater has failed and I cannot remove the filament. With the filament gone, it would be easy to pull the PEEK forward (much easier than with the jigsaw puzzle), but with the filament there, everything seems locked. I suppose I could try to reach in with an XActo knife and cut just above the PEEK, or try to use a soldering iron to heat up the hot end. Any thoughts?

Edit: I was able to cut the filament with an XActo blade, although with some difficulty. I wonder if the Jigsaw Replacement design could be improved with a slot that would allow dis-assembly in this situation without so much work.