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Dave, looking at the model you have drawn, I have a few suggestions for dividing up the pump if you want to go with castings. The bulb on top with the finial on the bottom would make a nice part. There needs to be a hole on top for a core print, so there would be a threaded finial on top too...

Dave, I will be leaving for NAMES on Tuesday, be gone for a week, but can give you some specifics about making patterns when I get back. When you have a model you are happy with send me a copy. What version of Solidworks do you have, I have 2013. I understand there are incompatibilities with...

Dave, the work on your model is an inspiration it all of us. Excellent work. I hope that finger is getting back to normal, seems that's the big reason for the diversion. I hope to see this engine running, as I have one partly done on my bench too. That pump looks interesting. At one time in...

KVOM, PT: Hey guys, let's not start a flame war over CF vs NAMES. THey are both important to the hobby. We need to support the shows we have and the folks putting them on. I hope these two shows continue, as I see a decline in the hobby taking a toll. Look at what happened to GEARS. I attend...

Chuck, the aluminum profiling I have done was with a 2 flute carbide bit at 1800 rpm. At the time that was the max spindle rpm. I cut .008 deep at about 1/3 the tool width. The problem you are going to run into is the tool will try to gum up(I assume you aren't running a coolant). Stand by with...

My limit switches saved me a few times, would NOT recommend skipping them unless you don't mind repairing your machine after a crash. maury

Chuck, that is good placement for your "Y"motor. Good thinking. On my conversion the pulley for the "Y" limits the travel a little, making parts with just over 8" in the "Y" impossible. You may want to also check out the pulley size for the "Y" so this doesn't happen to you. You will want all...

Chuck, Looks really good so far. I was wondering, have you thought about what you will be using the mill for? From what I've seen on your Z work, it appears you were not planning to use a ball screw. If you want to do any 3D work, you may wish you had spent the time. Just a thought. Keep up the...

Another possibility for those looking for something a little more upscale is Gearotic Motion. I use this program to make gears for Solidworks projects. It will do helical gears, bevel gears and spur gears as well as with a lot of additional things. I believe they also have a free trial. maury...

Seafood, you don't mention if you have a DRO on your mill. This is a great application for a DRO, Just set up the hole circle & drill. maury www.lonestarengineworks.com

Y'all, is there anyone attending this show in Portland Indiana? It starts 2 weeks from today. If you're there, come by, I'll be set up in rows G & H spot 8. This is a great show, lots of big & small engines and models, tractors too. http://www.tristategasenginetractor.com/index.php maury...

Guys, digging into the head of my x45 I noticed the spindle bearings feel a little gritty in places. Had anyone changes the bearings in their spindle? If so, where did you find them. Talking with a machinist friend he says I should look for Class 5 bearings, poking around on Google has nor come...

Guys, thanks so much for the input. I watched the video and may do the ball replacement thing if I determine that is the problem. I'm in the process of removing parts from the head so I can get an indicator on the ball screw ends and on the vert. slide. I'm working alone and I need to find a...

Hi All, I an new to CNC, and have purchased an already converted X45 machine. It seems to work well, but lately I have noticed about .009 backlach in the Z. THe conversion uses ball screws and is driven by a stepper with a reduction and a Gates splined belt. For the Z, the whole head moves and...

aone, very interesting. Thinking about it, why not print a mold of the part and pour in wax, then make your investment mold from the wax? Also, what kind of plaster did you use? I have been interested in investment casting with bronze for a while now, but haven't jumped in yet. Just did a...

dnalot, you are off to an excellent start. I was wondering, since it's a steam engine, have you thought of casting the cross slide guides into the bottle? ALso, not sure how you planned to do the mains? I just got my CNC mill up and running recently, made a few brackets and some cams for my...

dnalot, very nice work. I really like the shape. Is it for a steam or gas engine? This is the kind of work I will be doing a lot of in the near future for a project I'm just beginning. Is that maple wood you are using? About the core gasses, are you venting the mold? When I mold I use pokers...

Mike, very nice work! that is a great looking engine. I really like the sound it makes too. What did you use for the igniter coil? I have one of those under the bench waiting for my attention, I might have a few questions when I get to it. maury

Here's my 2cents worth: Since this is a hobby for you I'd say use your creative talents to make unique and unusual engines YOU are interested in. There will always be a few who are interested in picking up a casting kit like that. Don't go for the high volume crowd, it's too hard to hit and it's...

George, never used PSME, but I use American Model Eng Supply a lot. http://www.americanmodeleng.com/ Don't know what you need currently, but these folks might have it. It's best to order by phone from them as they are a small outfit. maury