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Comfy Creeper
Decided to make a heavy duty creeper that would actually be comfortable to work from. Wanted the back to be adjustable, meaning, when you are working from underneath you would have to do a sit up while your arms are extended. I'll loose some low clearance with my idea but it is for mainly working on higher sitting things like my Truck. For lower stuff I'll use a standard creeper. Will try to keep it low budget but won't sacrifice strength to do so. Lets see what we can come up with.
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Enlarge photo 1 My Buddy Ed scraps cars all the time so I ask him to let me know when he had one with bucket seats. I needed a scissor jack as well for what I have planned. This one came out of a Toyota.
Enlarge photo 2 The jack came from the same car and I'll save it for later till I get the framework done. I'll have to keep in mind a design plan for where to mount it.
Enlarge photo 3 First problem is that the seat doesn't lay all the way down. If you want to make something similar, look for one that does as it will save you some work. This is as far down as it will go from the factory.
Enlarge photo 4 Took off the side trim for now and won't need the position locks so we need to get that limiting factor gone.
Enlarge photo 5 Pretty easy to get all that out but the frame itself hits so the metal will have to be trimmed up.
Enlarge photo 6 You can make it easier by taking the cushions off.
Enlarge photo 7 The seat base will need this hole cut through. I cut the fabric and foam to get to the metal.
Enlarge photo 8 Push it to the sides and cut the metal out. I used a angle grinder but a recipricating saw would do it as well.
Enlarge photo 9 These are the back locks and spring that are not needed.
Enlarge photo 10 My thumb is pointing to the metal on the upright that needs to be trimmed off. This is where the limiter/lock attached to.
Enlarge photo 11 Starting to cut these off here. Won't hurt anything as the strength is still in the seat back.
Enlarge photo 12 Now it lays enough back. Any more and it is uncomfortable. I'll now take the track mounts off the rails so I have a flat surface to work from.
Enlarge photo 13 They are riveted and spot welded on. I want to keep the sliders adjustment available for fine tuning in the design if needed. I'll drill the rivets and surface drill the spot welds.
Enlarge photo 14 The fronts are a little bigger. Most all seats have straight runs for the rails so it makes reusing the seats for other stuff nice.
Enlarge photo 15 I centerpunched the rivets and welds and then just stairstepped a bigger sized drill bit. Just went deep enough on the spot welds to barely go into the base rail.
Enlarge photo 16 I pop the rivet head off and pry up to break the spot weld. Rivet head is off on the lower and the spot it about to break free here.
Enlarge photo 17 One tap with a hammer and it's off.
Enlarge photo 18 I'll just punch out the remaining rivet on the left and use it as a mounting hole.
Enlarge photo 19 Automatic center punch will work fine.
Enlarge photo 20 Quick and easy hole.
Enlarge photo 21 I slid a standard 1/4 inch bolt through. The head will clear the track fine.
Enlarge photo 22 Did some measuring and drilled a single hole in 2 pieces of box tubing. I'll now mount them on.
Enlarge photo 23 With this done I can mark the other holes need by tracing the existing holes. No mismeasures that way. A lot quicker to.
Enlarge photo 24 Seeing the trace, I just center punch for drilling.
Enlarge photo 25 Now the holes line up fine and I have a strong mounting frame to work from.
Enlarge photo 26 I want it as low as possible and I'll have to angle it some to do that. I blocked up the front and laid down on it till it was what I wanted. This is what I'll go off of.
Enlarge photo 27 Had some bigger casters I pickup up at a yard sale. These do have bearings in them so they will be smooth. If you're going low budget, you can probably get a throw away stroller if you watch curbsides. Need a little more height so I'll move everything up using some 3/4" blocks. It'll just keep anything from dragging on uneven surfaces.
Enlarge photo 28 Using a digital protractor, it says it is a 6 degree angle. Now time to make the caster mounts.
Enlarge photo 29 Got some flat stock and cut the to size on the surface grinder. I'll need 4 of them.
Enlarge photo 30 Once all cut, I trace one from the caster and mark the holes. Clamp them all together and drill them all at once.
Enlarge photo 31 Quick and easy.
Enlarge photo 32 Cut another piece of square tubing for a crossmember/caster mount.
Enlarge photo 33 Used the digital protractor and tacked the box at zero degrees. Got lucky as this height was real close with the caster plate under it so I'll go with it. I'll just fill in the gap with weld when it comes time.
Enlarge photo 34 Caster clears the box at this position so it's a go for tacking on.
Enlarge photo 35 Front is ready so no the back is next.
Enlarge photo 36 I want another flat section to mount the jack so where the rails extend I marked it. Did the math and got what 6 degrees would be in 1.25 inches and marked another line. I'll V cut between the lines leaving the bottom uncut. Gives me another reference point too. Just used a hacksaw.
Enlarge photo 37 Figured how much of a kick up I needed for the back casters while they were mounted to another crossmember I cut. Used the protractor again and got the angles needed. Marked them out and will cut with a hacksaw again.
Enlarge photo 38 One side done.
Enlarge photo 39 With both sides cut I can tack the crossmember and casters on. You can see the other kick up has been welded on the top.
Enlarge photo 40 With this tacked on, I'll put it on the floor and it should bend easily to close the gap in the pie cuts.