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Dear rpe,
I would hate to discourage anyone from this site. It is, however, a DYI (Do It Yourself) site. If you truly find that you have no mechanical skills whatsoever and you absolutely,...

Welcome to the wonderful world of CNC. If you must rebuild your gantry you might give some consideration to offsetting it. Several people have done this, because you can gain a bit more of your...

Welcome back! You should definitely use a backlash on your axes as long as you are using screws. I used flanged backlash nuts from Dumpster, or you could make your own. Gliderguider did that on his...

If you can get Ger21 to answer it would be good. But in the mean time you might try slowing down your speed and acceleration about one-fourth and see if that helps at all. When I was using 1/4-20...

Merry Christmas to all and to all a good Holiday

If you have not already done this, you might give it some consideration. A "torsion box" is only fully completed with both a top and bottom to it. If you glue and pin a bottom you will get far less...

If you don't already own one, pick up a countersink kit while at the hardware store. When running the screws into the MDF, set the torque on your screwdriver to stop turning when the screws reach the...

Hello Jody and Welcome to the Zone. Don't be afraid to ask questions. This place is full of expertise. Also, as you can see by having read past build logs, pictures are both interesting to look at...

I use 1/2" 8-2 Acme on my JGRO and I only use the collars to hold the screw in position, and while cutting I don't seem to experience any whipping. I do think that checking the screw for straightness...

Would anyone like to make a list of their favorite collets and bits and share that with the community? I use a Craftsman router on my machine, isn't that the same as Porter-Cable (for collet size)?

A very good looking machine. So, after a month of use, is your machine still running? And if so, how is it performing? And how well is the HDPE still holding the threads? As I said, nice machine. Tom

OK I'm going to try again with the picture.

Sorry, The picture of the support did not upload, I'll try again later.
Tom

According to Ger21 a multiple start lead screw is more accurate than a single start, so I went with 1/2 8-2 Acme and I like it. I'm slowly putting together a Gecko 540 and accompanying box, right now...

Hello and welcome to the ZONE! I might have misunderstood your question but I think a 1/2" 10-2 would fill your needs. It is 10 threads to the inch with a 2 start giving you in essence 5 threads to...

I only brought this thread forward for the pictures for jcdammeyer, or anybody else that's curious. John asked if I could explain my pipe supports. Mine are wood and very crude. What I did was to...

Hello Jason. What a great thread!! I was wondering if you are still using your JGRO for all your work. If so, could you tell us what upgrades you have made to the machine. Also, could you tell us...

Hi John, How is your build coming along? When I first answered you I did not have any new pictures of my machine, well now I do. The first is my machine right after I built it and the second is my...

There is also double stick tape or even better, in programming, tabs.
Tom

I originally got my inspiration to change my gantry sides from Grunblau's machine. His machine looks like MDF art. Mine, not so much. This upgrade or change (whatever you would like to call it) puts...

Hi John, I don't have any pictures of my machine, but what you have drawn is almost exactly what I have done with my JGRO. I say almost as my legs only adjust 3 1/2 inches back. I also mounted my...

Well now I feel like an idiot! But as long as I'm still learnin' I guess that's a good thing. Ger, thanks for the response, I always respect your advice to everyone on the board. Tom

I finally located a supplier for a 48v fan. Pelonis out of Malvern, Pa. A little pricy, but so is every other improvement in this hobby. Tom

Hello and welcome to the fun. You can use whatever you have at hand the only thing you have to remember is for every thing you change you then have to compensate by offsetting, drilling larger or...

OK. It's been over a week and no replies. Am I to assume that I can hook up the 24 volt circulating fan to the 48 volt power supply and have no problems either electrically or electronically and am I...

Hello Dustin and welcome to the cnc zone. There is nothing wrong with the JGRO. First off, the plans are free! Second, if you are an amateur woodworker, you probably have enough scrap pieces lying...

Hello all, I recently purchased a few components to build a spare control box for my JGRO, I have a few issues with vacuum cleaners. Anyway I bought a 48V-7.3A Power Supply to match up with a Gecko...

A bad story as long as it takes. I have a friend who built a JGRO router and with "it" he built a Joes; and I saw this stuff in his garage one day while visiting him. I was so enthralled that I went...

OK, I get he won't repair or replace a burnt out board. I can't find any place on their site where I can buy just a new box. I see no reason to pay the shipping on a return if whatever went wrong...

Good Questions. As I sit here and look at my JGRO I see that a very good reason for the top torsion box is to be a dead flat surface and one that will not warp or twist either between cuts or even...